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California-San Diego-10398 Pacific Center Court Lease - LMP Properties Ltd. and Nanogen Inc.

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             STANDARD INDUSTRIAL/COMMERCIAL SINGLE-TENANT LEASE-NET



1.    BASIC PROVISIONS ("BASIC PROVISIONS").

      1.1   PARTIES: This Lease ("Lease"), dated for reference purposes only,
June 29, 1994, is made by and between LMP PROPERTIES, LTD., a California Limited
Partnership ("Lessor") and NANOGEN, INC., a California Corporation ("Lessee")
(collectively the "Parties," or individually a "Party.").

      1.2   PREMISES: That certain real property, including all improvements
therein or to be provided by Lessor under the terms of this Lease, and commonly
known by the street address of 10398 Pacific Center Court (43,645 sq. ft.)
located in the County of San Diego, State of California and generally described
as (describe briefly the nature of the property) Pacific Corporate Center (Lot
27) See Addendum 1.2 ("Premises"). (See Paragraph 2 for further provisions.)

      1.3   TERM: Ten (10) years and ______ months ("Original Term") commencing
Jan. 1, 1995 See Addendum 1.3 ("Commencement Date") and ending ten (10) years
after commencement date ("Expiration Date"). (See Paragraph 3 for further
provisions.)

      1.4   EARLY POSSESSION: See Addendum 1.4 ("Early Possession Date"). (See
Paragraphs 3.2 and 3.3 for further provisions.)

      1.5   BASE RENT: $36,225.35 per month ("Base Rent"), payable on the first
day of each month commencing the second month of the Lease term. Monthly rent
for the first month of the Lease term shall be payable upon the execution of
this Lease. See Addendum 1.5 (See Paragraph 4 for further provisions.)

      If this box is checked, there are provisions in this Lease for the Base
Rent to be adjusted.

      1.6   BASE RENT PAID UPON EXECUTION: $36,225.35 as Base Rent for the
period first month of the Lease term.

      1.7   SECURITY DEPOSIT: $36,225.35 See Addendum 1.7 ("Security Deposit").
(See Paragraph 5 for further provisions.)

      1.8   PERMITTED USE: Office, laboratory, manufacturing, assembly, pilot
plants, warehousing, and any other lawful use as permitted by applicable zoning
laws. (See Paragraph 6 for further provisions.)

      1.9   INSURING PARTY: Lessor is the "Insuring Party" unless otherwise
stated herein. (See Paragraph 8 for further provisions.)

      1.10  REAL ESTATE BROKERS: The following real estate brokers (collectively
the "Brokers") and brokerage relationships exist in this


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<PAGE>   2
transaction and are consented to by the Parties (check applicable boxes):
BUSINESS REAL ESTATE BROKERAGE COMPANY represents Lessor exclusively ("Lessor's
Broker"); JOHN BURNHAM & COMPANY represents Lessee exclusively ("Lessee's
Broker"). (See Paragraph 15 for further provisions.)

      1.11  GUARANTOR. The obligations of the Lessee under this Lease are to be
guaranteed by N/A ("Guarantor"). (See Paragraph 37 for further provisions.)

      1.12  ADDENDA. Attached hereto is an Addendum or Addenda consisting of
Paragraphs 1, 4 through __ and Exhibits ___ Tenant improvement plans and
specifications all of which constitute a part of this Lease.

2.    PREMISES.

      2.1   LETTING. Lessor hereby leases to Lessee, and Lessee hereby leases
from Lessor, the Premises, for the term, at the rental, and upon all of the
terms, covenants and conditions set forth in this Lease. Unless otherwise
provided herein, any statement of square footage set forth in this Lease, or
that may have been used in calculating rental, is an approximation which Lessor
and Lessee agree is reasonable and the rental based thereon is not subject to
revision whether or not the actual square footage is more or less.

      2.2   CONDITION. Lessor shall deliver the Premises to Lessee clean and
free of debris on the Commencement Date and warrants to Lessee that the existing
plumbing, fire sprinkler system, lighting, air conditioning, heating, and
loading doors, if any, in the Premises, other than those constructed by Lessee,
shall be in good operating condition on the Commencement Date. If a
non-compliance with said warranty exists as of the Commencement Date, Lessor
shall, except as otherwise provided in this Lease, promptly after receipt of
written notice from Lessee setting forth with specificity the nature and extent
of such non-compliance, rectify same at Lessor's expense. See Addendum 2.2.

      2.3   COMPLIANCE WITH COVENANTS, RESTRICTIONS AND BUILDING CODE. Lessor
warrants to Lessee that the Improvements on the Premises comply with all
applicable covenants or restrictions of record and applicable building codes,
regulations and ordinances in effect on the Commencement Date. Said warranty
does not apply to any Alterations or Utility Installations (as defined in
Paragraph 7.3(a)) made or to be made by Lessee. If the Premises do not comply
with said warranty, Lessor shall, except as otherwise provided in this Lease,
promptly after receipt of written notice from Lessee setting forth with
specificity the nature and extent of such non-compliance, rectify the same at
Lessor's expense. See Addendum 2.3.

      2.4   ACCEPTANCE OF PREMISES. Lessee hereby acknowledges: (a) that it has
been advised by the Brokers to satisfy itself with respect to the condition of
the Premises (including but not limited to the electrical and fire sprinkler
systems, security, environmental


                                      -2-
<PAGE>   3
aspects, compliance with Applicable Law, as defined in Paragraph 6.3) and the
present and future suitability of the Premises for Lessee's intended use, (b)
that Lessee has made such investigation as it deems necessary with reference to
such matters and assumes all responsibility therefor as the same relate to
Lessee's occupancy of the Premises and/or the term of this Lease, and (c) that
neither Lessor, nor any of Lessor's agents, has made any oral or written
representations or warranties with respect to the said matters other than as set
forth in this Lease.

      2.5   PARKING. See Addendum 2.6

3.    TERM.

      3.1   TERM. The Commencement Date, Expiration Date and Original Term of
Lease are as specified in Addendum 1.3.

      3.2   EARLY POSSESSION. If Lessee totally or partially occupies the
Premises prior to the Commencement Date, the obligation to pay Base Rent shall
be abated for the period of such early possession. All other terms of this
Lease, however (including but not limited to the obligations to pay Real
Property taxes and insurance premiums and to maintain the Premises) shall be in
effect during such period. Any such early possession shall not affect nor
advance the Expiration Date of the Original Term.

      3.3   DELAY IN POSSESSION. If for any reason Lessor cannot deliver
possession of the Premises to Lessee as agreed herein by the Early Possession
Date, ___ one is specified in Paragraph 1.4, or, if no Early Possession Date is
specified, by the Commencement Date, Lessor shall not be subject to any
liability therefor, nor shall such failure affect the validity of this Lease, or
the obligations of Lessee hereunder, or extend the term hereof, but in such
case, Lessee shall not, except as otherwise provided herein, be obligated to pay
rent or perform any other obligation of Lessee under the terms of this Lease
until Lessor delivers possession of the Premises to Lessee. If possession of the
Premises is not delivered to Lessee within sixty (60) days after the
Commencement Date, Lessee may, at its option, by notice in writing to Lessor
within ten (10) days thereafter, cancel this Lease, in which event the Parties
shall be discharged from all obligations hereunder; provided, however, that if
such written notice by Lessee is not received by Lessor within said ten (10) day
period, Lessee's right to cancel this Lease shall terminate and be of no further
force or effect. Except as may be otherwise provided, and regardless of when the
term actually commences, if possession is not tendered to Lessee when required
by this Lease and Lessee does not terminate this Lease, as aforesaid, the period
free of the obligation to pay Base Rent, if any, that Lessee would otherwise
have enjoyed shall run from the date of delivery of possession and continue for
a period equal to what Lessee would otherwise have enjoyed under the terms
hereof, but minus any days of delay caused by the acts, changes or omissions of
Lessee. See Addendum 3.3.


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<PAGE>   4
4.    RENT.

      4.1   BASE RENT. Lessee shall cause payment of Base Rent and other rent or
charges, as the same may be adjusted from time to time, to be received by Lessor
in lawful money of the United States, without offset or deduction, on or before
the day on which it is due under the terms of this Lease. Base Rent and all
other rent and charges for any period during the term hereof which is for less
than one (1) full calendar month shall be prorated based upon the actual number
of days of the calendar month involved. Payment of Base Rent and other charges
shall be made to Lessor at its address stated herein or to such other persons or
at such other addresses as Lessor may from time to time designate in writing to
Lessee.

5.    SECURITY DEPOSIT. Lessee shall deposit with Lessor upon execution hereof
the Security Deposit set forth in Paragraph 1.7 as security for Lessee's
faithful performance of Lessee's obligations under this Lease. If Lessee fails
to pay Base Rent or other rent or charges due hereunder, or otherwise Defaults
under this Lease (as defined in Paragraph 13.1), Lessor may use, apply or retain
all or any portion of said Security Deposit for the payment of any amount due
Lessor or to reimburse or compensate Lessor for any liability, cost, expense,
loss or damage (including attorneys' fees) which Lessor may suffer or incur by
reason thereof. If Lessor uses or applies all or any portion of said Security
Deposit, Lessee shall within ten (10) days after written request therefor
deposit moneys with Lessor sufficient to restore said Security Deposit to the
full amount required by this Lease. Lessor shall not be required to keep all or
any part of the Security Deposit separate from its general accounts. Lessor
shall, at the expiration or earlier termination of the term hereof and after
Lessee has vacated the Premises, return to Lessee (or, at Lessor's option, to
the last assignee, it any, of Lessee's interest herein), that portion of the
Security Deposit not used or applied by Lessor within ten (10) days after
surrender of the Premises by Lessor. Unless otherwise expressly agreed in
writing by Lessor, no part of the Security Deposit shall be considered to be
held in trust, to bear interest or other increment for its use, or to be
prepayment for any moneys to be paid by Lessee under this Lease.

6.    USE.

      6.1   USE. Lessee shall use and occupy the Premises only for the purposes
set forth in Paragraph 1.8, or any other use which is comparable thereto, and
for no other purpose. Lessee shall not use or permit the use of the Premises in
a manner that creates waste or a nuisance, or that disturbs owners and/or
occupants of, or causes damage to, neighboring premises or properties.

      6.2   HAZARDOUS SUBSTANCES.

            (a)   REPORTABLE USES REQUIRE CONSENT. The term Hazardous Substance
as used in this Lease shall mean any product, substance, chemical, material or
waste whose presence, nature, quantity and/or intensity of existence, use,
manufacture, disposal, transportation,


                                      -4-
<PAGE>   5
spill, release or effect, either by itself or in combination with other
materials expected to be on the Premises, is regulated or monitored by any
governmental authority. Hazardous Substance shall include, but not be limited
to, hydrocarbons, petroleum, gasoline, crude oil or any products, by-products or
fractions thereof. Lessee shall not engage in any activity in, on or about the
Premises which constitutes a Reportable Use (as hereinafter defined) of
Hazardous Substances without the express prior written consent of Lessor and
compliance in a timely manner (at Lessee's sole cost and expense) with all
Applicable Law (as defined in Paragraph 6.3). Reportable Use shall mean (i) the
installation or use of any above or below ground storage tank, (ii) the
generation, possession, storage, use, transportation, or disposal of a Hazardous
Substance that requires a permit from, or with respect to which a report,
notice, registration or business plan is required to be filed with, any
governmental authority. Reportable Use shall also include Lessee's being
responsible for the presence in, on or about the Premises of a Hazardous
Substance with respect to which any Applicable Law requires that a notice be
given to persons entering or occupying the Premises or neighboring properties.
Notwithstanding the foregoing, Lessee may, without Lessor's prior consent, but
in compliance with all Applicable Law, use any ordinary and customary materials
reasonably required to be used by Lessee in the normal course of Lessee's
business permitted on the Premises, so long as such use is not a Reportable Use
and does not expose the Premises or neighboring properties to any meaningful
risk of contamination or damage or expose Lessor to any liability therefor. See
Addendum 6.2(a).

            (b)   DUTY TO INFORM LESSOR. If Lessee knows, or has reasonable
cause to believe, that a Hazardous Substance, or a condition involving or
resulting from same, has come to be located in, on, under or about the Premises,
other than as previously consented to by Lessor or as permitted pursuant to
Section 6.2(a), Lessee shall immediately give written notice of such fact to
Lessor. Lessee shall also immediately give Lessor a copy of any statement,
report, notice, registration, application, permit, business plan, license,
claim, action or proceeding given to, or received from, any governmental
authority or private party, or persons entering or occupying the Premises,
concerning the presence, spill, release, discharge of, or exposure to, any
Hazardous Substance or contamination in, on, or about the Premises, including
but not limited to all such documents as may be involved in any Reportable Uses
involving the Premises. See Addendum 6.2(b).

            (c)   INDEMNIFICATION. Lessee shall indemnify, protect, defend and
hold Lessor, its agents, employees, lenders and ground lessor, if any, and the
Premises, harmless from and against any and all loss of rents and/or damages,
liabilities, judgments, costs, claims, liens, expenses, penalties, permits and
reasonable attorney's and consultant's fees arising out of or involving any
Hazardous Substance or storage tank brought onto the Premises by or for Lessee
or under Lessee's control. See Addendum 6.2(c). The parties' obligations under
this Paragraph 6 shall include, but not be limited to, the effects of any
contamination or injury to person, property or


                                      -5-
<PAGE>   6
the environment created or suffered by the indemnifying party and the cost of
investigation (including consultant's and attorney's fees and testing), removal,
remediation, restoration and/or abatement thereof, or of any contamination
therein involved, and shall survive the expiration or earlier termination of
this Lease. No termination, cancellation or release agreement entered into by
Lessor and Lessee shall release Lessee from its obligations under this Lease
with respect to Hazardous Substances or storage tanks, unless specifically so
agreed by Lessor in writing at the time of such agreement. See Addendum 6.2(c).

      6.3   LESSEE'S COMPLIANCE WITH LAW. Except as otherwise provided in this
Lease, Lessee, shall, at Lessee's sole cost and expense, fully, diligently and
in a timely manner; comply with all "Applicable Law" pertaining to Lessee's use
and occupancy of the Premises, which term is used in this Lease to include all
laws, rules, regulations, ordinances, directives covenants, easements and
restrictions of record, permits, the requirements of any applicable fire
insurance underwriter or rating bureau, relating in any manner to the Premises
(including but not limited to matters pertaining to (i) industrial hygiene, (ii)
environmental conditions on, in, under or about the Premises, including soil and
groundwater conditions, and (iii) the use, generation, manufacture, production,
installation, maintenance, removal, transportation, storage, spill or release of
any Hazardous Substance or storage tank), now in effect or which may hereafter
come into effect, and whether or not reflecting a change in policy from any
previously existing policy. Lessee shall, within five (5) days after receipt of
Lessor's written request, provide Lessor with copies of all documents and
information, including, but not limited to, permits, registrations, manifests,
applications, reports and certificates, evidencing Lessee's compliance with any
Applicable Law specified by Lessor, and shall immediately upon receipt, notify
Lessor in writing (with copies of any documents involved) of any threatened or
actual claim, notice, citation, warning, complaint or report pertaining to or
involving failure by Lessee or the Premises to comply with any Applicable Law.
See Addendum 6.3.

      6.4   INSPECTION; COMPLIANCE. Lessor and Lessor's Lender(s) (as defined in
Paragraph 8.3(a)) shall have the right to enter the Premises at any time, in the
case of an emergency, and otherwise at reasonable times after 24 hours for the
purpose of inspecting the condition of the Premises and for verifying compliance
by Lessee with this Lease and all Applicable Laws (as defined in Paragraph 6.3),
and to employ experts and/or consultants in connection therewith and/or to
advise Lessor with respect to Lessee's activities, including but not limited to
the installation, operation, use, monitoring, maintenance, or removal of any
Hazardous Substance or storage tank on or from the Premises. The costs and
expenses of any such inspections shall be paid by the party requesting same,
unless a Default or Breach of this Lease, violation of Applicable Law, or a
material contamination, caused or materially contributed to by Lessee is found
to exist or be imminent, or unless the inspection is requested or ordered by
governmental authority as the result of any such existing or imminent violation
or contamination caused by Lessee in which event Lessee


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<PAGE>   7
shall pay for such inspection within 30 days after written request therefor.

7.    MAINTENANCE; REPAIRS; UTILITY INSTALLATION; TRADE FIXTURES AND
      ALTERATIONS.

      7.1   LESSEE'S OBLIGATIONS.

            (a)   Subject to the provisions of Paragraphs 2.2 (Lessor's warranty
as to condition), 2.3 (Lessor's warranty as to compliance with covenants, etc.),
7.2 (Lessor's obligations to repair), 9 (damage and destruction), and 14
(condemnation), Lessee shall, at Lessee's sole cost and expense and at all
times, keep the Premises and every part thereof in good order, condition and
repair, non-structural whether or not such portion of the Premises requiring
repair, or the means of repairing the same, are reasonably or readily accessible
to Lessee, including without limiting the generality of the foregoing, all
equipment or facilities exclusively serving the Premises, such as plumbing,
heating, air conditioning, ventilating, electrical, lighting facilities,
boilers, fired or unfired pressure vessels, fire sprinkler and/or standpipe and
hose or other automatic fire extinguishing system below the sprinkler drops
including fire alarm and/or smoke detection systems and equipment, fire
hydrants, fixtures, walls (interior), ceilings, floors, windows, doors, plate
glass, skylights, signs, located in, on, about, or adjacent to the Premises.
Lessee shall not cause or permit any Hazardous Substance to be spilled or
released in, on, under or about the Premises (including through the plumbing or
sanitary sewer system) and shall promptly, at Lessee's expense, take all
investigatory and/or remedial action reasonably recommended, whether or not
formally ordered or required, for the cleanup of any contamination of, and for
the maintenance, security and/or monitoring of, the Premises, the elements
surrounding same, or neighboring properties, that was caused or materially
contributed to by Lessee, or pertaining to or involving any Hazardous Substance
and/or storage tank brought onto the Premises by or for Lessee or under its
control. Lessee, in keeping the Premises in good order, condition and repair,
shall exercise and perform good maintenance practices. Lessee's obligations
shall include restorations, replacements or renewals when necessary to keep the
Premises and all improvements thereon or a part thereof in good order, condition
and state of repair. See Addendum 7.2

            (b)   Lessee shall, at Lessee's sole cost and expense, procure and
maintain contracts, with copies to Lessor, in customary form and substance for,
and with contractors specializing and experienced in, the inspection,
maintenance and service of the following equipment and improvements, if any,
located on the Premises: (i) heating, air conditioning and ventilation
equipment, (ii) boiler, fired or unfired pressure vessels, (iii) fire sprinkler
and/or standpipe and hose or other automatic fire extinguishing systems,
including fire alarm and/or smoke detection. See Addendum 7.2.

      7.2   LESSOR'S OBLIGATIONS. It is the intention of the Parties that the
terms of this Lease govern the respective obligations of the


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<PAGE>   8
Parties as to maintenance and repair of the Premises. Lessee and Lessor
expressly waive the benefit of any statute now or hereafter in effect to the
extent it is inconsistent with the terms of this Lease with respect to, or which
affords Lessee the right to make repairs at the expense of Lessor or to
terminate this Lease by reason of, any needed repairs. See Addendum 7.2.

      7.3   UTILITY INSTALLATIONS; TRADE FIXTURES; ALTERATIONS.

            (a)   DEFINITIONS; CONSENT REQUIRED. The term "Utility
Installations" is used in this Lease to refer to all carpeting, window
coverings, air lines, power panels, electrical distribution, security, fire
protection systems, communication systems, lighting fixtures, heating,
ventilating, and air conditioning equipment, plumbing, and fencing in, on or
about the Premises. The term "Trade Fixtures" shall mean Lessee's machinery and
equipment that can be removed without doing material damage to the Premises. The
term "Alterations" shall mean any modification of the improvements on the
Premises from that which are provided by Lessor under the terms of this Lease,
other than Utility Installations or Trade Fixtures, whether by addition or
deletion. "Lessee Owned Alterations and/or Utility Installations" are defined as
Alterations and/or Utility Installations made by Lessee that are not yet owned
by Lessor as defined in Paragraph 7.4(a). Lessee shall not make any Alterations
or Utility Installations in, on, under or about the Premises without Lessor's
prior written consent. Lessee may, however, make non-structural alterations,
Utility Installations to the interior of the Premises (excluding the roof), as
long as they are not visible from the outside, do not involve puncturing,
relocating or removing the roof or any existing walls and the cost thereof per
occurrence does not exceed $25,000. See Addendum 7.3.

            (b)   CONSENT. Any Alterations or Utility Installations that Lessee
shall desire to make and which require the consent of the Lessor shall be
presented to Lessor in written form with proposed detailed plans. All consents
given by Lessor, whether by virtue of Paragraph 7.3(a) or by subsequent specific
consent, shall be deemed conditioned upon: (i) Lessee's acquiring all applicable
permits required by governmental authorities, (ii) the furnishing of copies of
such permits together with a copy of the plans and specifications for the
Alteration or Utility Installation to Lessor prior to commencement of the work
thereon, and (iii) the compliance by Lessee with all conditions of said permits
in a prompt and expeditious manner. Any Alterations or Utility installations by
Lessee during the term of this Lease shall be done in a good and workmanlike
manner, with good and sufficient materials, and in compliance with all
Applicable Law. Lessee shall promptly upon completion thereof furnish Lessor
with as-built plans and specifications therefore.

            (c)   INDEMNIFICATION. Lessee shall pay, when due, all claims for
labor or materials furnished or alleged to have been furnished to or for Lessee
at or for use on the Premises, which claims are or may be secured by any
mechanics' or materialmen's lien against the Premises or any interest therein.
Lessee shall give Lessor not


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<PAGE>   9
less than ten (10) days' notice prior to the commencement of any work in, on or
about the Premises, and Lessor shall have the right to post notices of
non-responsibility in or on the Premises as provided by law. If Lessee shall, in
good faith, contest the validity of any such lien, claim or demand, then Lessee
shall, at its sole expense defend and protect itself, Lessor and the Premises
against the same and shall pay and satisfy any such adverse judgment that may be
rendered thereon before the enforcement thereof against the Lessor or the
Premises. If Lessor shall require, Lessee shall furnish to Lessor a surety bond
satisfactory to Lessor in an amount equal to one and one-half times the amount
of such contested lien claim or demand, indemnifying Lessor against liability
for the same, as required by law for the holding of the Premises free from the
effect of such lien or claim. In addition, Lessor may require Lessee to pay
Lessor's reasonable attorney's fees and costs in participating in such action if
Lessor shall decide it is to its best interest to do so.

      7.4   OWNERSHIP; REMOVAL; SURRENDER; AND RESTORATION.

            (a)   OWNERSHIP. Subject to Lessor's right to request their removal
or become the owner thereof as hereinafter provided in this Paragraph 7.4, all
Alterations and Utility installations made to the Premises and paid for by
Lessee shall be the property of and owned by Lessee, but considered a part of
the Premises. Unless otherwise instructed per subparagraph 7.4(b) hereof, all
Lessee Owned Alterations and Utility Installations shall, at the expiration or
earlier termination of this Lease, become the property of Lessor and remain upon
and be surrendered by Lessee with the Premises. See Addendum 7.4(a).

            (b)   SURRENDER/RESTORATION. Lessee shall surrender the Premises by
the end of the last day of the Lease term or any earlier termination date, with
all of the improvements, parts and surfaces thereof clean and free of debris and
in good operating order, condition and state of repair, ordinary wear and tear
excepted. "Ordinary wear and tear" shall not include any damage or deterioration
that would have been prevented by good maintenance practice or by Lessee
performing all of its obligations under this Lease. Except as otherwise agreed
or specified in writing by Lessor, the Premises, as surrendered, shall include
the Utility Installations. The obligation of Lessee shall include the repair of
any damage occasioned by the installation, maintenance or removal of Lessee's
Trade Fixtures, furnishings, equipment, and Alterations and/or Utility
Installations, as well as the removal of any storage tank installed by or for
Lessee, and the removal, replacement, or remediation of any soil, material or
ground water contaminated by Lessee, all as may then be required by Applicable
Law and/or good practice. Lessee's Trade Fixtures shall remain the property of
Lessee and shall be removed by Lessee subject to its obligation to repair and
restore the Premises per this Lease.

8.    INSURANCE; INDEMNITY.

      8.1   PAYMENT FOR INSURANCE. Regardless of whether the Lessor or Lessee is
the Insuring Party, Lessee shall pay for all insurance


                                      -9-
<PAGE>   10
required under this Paragraph 8 except to the extent of the cost attributable to
liability insurance carried by Lessor in excess of $1,000,000 per occurrence.
Premiums for policy periods commencing prior to or extending beyond the Lease
term shall be prorated to correspond to the Lease term. Payment shall be made by
Lessee to Lessor within ten (10) days following receipt of an invoice for any
amount due.

      8.2   LIABILITY INSURANCE.

            (a)   CARRIED BY LESSEE. Lessee shall obtain and keep in force
during the term of this Lease a Commercial General Liability policy of insurance
protecting Lessee and Lessor (as an additional insured) against claims for
bodily injury, personal injury and property damage based upon, involving or
arising out of the ownership, use, occupancy or maintenance of the Premises and
all areas appurtenant thereto. Such insurance shall be on an occurrence basis
providing single limit coverage in an amount not less than $1,000,000 per
occurrence with an "Additional Insured-Managers or Lessors of Premises"
Endorsement and contain the "Amendment of the Pollution Exclusion" for damage
caused by heat, smoke or fumes from a hostile fire. The policy shall not contain
any intra-insured exclusions as between insured persons or organizations, but
shall include coverage for liability assumed under this Lease as an insured
contract for the performance of Lessee's indemnity obligations under this Lease.
The limits of said insurance required by this Lease or as carried by Lessee
shall not, however, limit the liability of Lessee nor relieve Lessee of any
obligation hereunder. All insurance to be carried by Lessee
_______________________ contributory with any similar insurance carried by
Lessor, whose insurance shall be considered excess insurance only.

            (b)   CARRIED BY LESSOR. In the event Lessor is the Insuring Party,
Lessor shall also maintain liability insurance described in Paragraph 8.2(a),
above, in addition to, and not in lieu of, the insurance required to be
maintained by Lessee. Lessee shall not be named as an additional insured
therein.

      8.3   PROPERTY INSURANCE--BUILDING, IMPROVEMENTS AND RENTAL VALUE.

            (a)   BUILDING AND IMPROVEMENTS. The Insuring Party shall obtain and
keep in force during the term of this Lease a policy or policies in the name of
Lessor, with loss payable to Lessor and to the holders of any mortgages, deeds
of trust or ground leases on the Premises ("Lender(s)"), insuring loss or damage
to the Premises. The amount of such insurance shall be equal to the full
replacement cost of the Premises, as the same shall exist from time to time, or
the amount required by Lenders, but in no event more than the commercially
reasonable and available insurable value thereof if, by reason of the unique
nature or age of the improvements involved, such latter amount is less than full
replacement cost. If Lessor is the Insuring Party, however, Lessee Owned
Alterations and Utility Installations shall be insured by Lessee under Paragraph
8.4 rather than by Lessor upon


                                      -10-
<PAGE>   11
written notice to Lessee. If the coverage is available and commercially
appropriate, such policy or policies shall insure against all risks of direct
physical loss or damage (except the perils of flood and/or earthquake unless
required by a Lender), including coverage for any additional costs resulting
from debris removal and reasonable amounts of coverage for the enforcement of
any ordinance or law regulating the reconstruction or replacement of any
undamaged sections of the Premises required to be demolished or removed by
reason of the enforcement of any building, zoning, safety or land use laws as
the result of a covered cause of loss. Said policy or policies shall also
contain an agreed valuation provision in lieu of any coinsurance clause, waiver
of subrogation, and inflation guard protection causing an increase in the annual
property insurance coverage amount by a factor of not less than the adjusted
U.S. Department of Labor Consumer Price Index for All Urban Consumers for the
city nearest to where the Premises are located. If such insurance coverage has a
deductible clause, the deductible amount shall not exceed $1,000 per occurrence,
and Lessee shall be liable for such deductible amount in the event of an Insured
Loss, as defined in Paragraph 9.1(c).

            (b)   RENTAL VALUE. The Insuring Party shall, in addition, obtain
and keep in force during the term of this Lease a policy or policies in the name
of Lessor, with loss payable to Lessor and Lender(s), insuring the loss of the
full rental and other charges payable by Lessee to Lessor under this Lease for
one (1) year (including all real estate taxes, insurance costs, and any
scheduled rental increases). Said insurance shall provide that in the event the
Lease is terminated by reason of an insured loss, the period of indemnity for
such coverage shall be extended beyond the date of the completion of repairs or
replacement of the Premises, to provide for one full year's loss of rental
revenues from the date of any such loss. Said insurance shall contain an agreed
valuation provision in lieu of any coinsurance clause, and the amount of
coverage shall be adjusted annually to reflect the projected rental income,
property taxes, insurance premium costs and other expenses, if any, otherwise
payable by Lessee, for the next twelve (12) month period. Lessee shall be liable
for any deductible amount in the event of such loss.

            (c)   ADJACENT PREMISES. If the Premises are part of a larger
building, or if the Premises are part of a group of buildings owned by Lessor
which are adjacent to the Premises, the Lessee shall pay for any increase in the
premiums for the property insurance of such building or buildings if said
increase is caused by Lessee's acts, omissions, use or occupancy of the
Premises.

            (d)   TENANT'S IMPROVEMENTS. If the Lessor is the Insuring Party,
the Lessor shall not be required to insure Lessee Owned Alterations and Utility
Installations unless the item in question has become the property of Lessor
under the terms of this Lease. If Lessee is the Insuring Party, the policy
carried by Lessee under this Paragraph 8.3 shall insure Lessee Owned Alterations
and Utility Installations.


                                      -11-
<PAGE>   12
      8.4   LESSEE'S PROPERTY INSURANCE. Subject to the requirements of
Paragraph 8.5, Lessee at its cost shall either by separate policy or, at
Lessor's option, by endorsement to a policy already carried, maintain insurance
coverage on all of Lessee's personal property, Lessee Owned Alterations and
Utility Installations in, on, or about the Premises similar in coverage to that
carried by the Insuring Party under Paragraph 8.3. Such insurance shall be full
replacement cost coverage with a deductible of not to exceed $1,000 per
occurrence. The proceeds from any such insurance shall be used by Lessee for the
replacement of personal property or the restoration of Lessee Owned Alterations
and Utility Installations. Lessee shall be the Insuring Party with respect to
the insurance required by this Paragraph 8.4 and shall provide Lessor with
written evidence that such insurance is in force.

      8.5   INSURANCE POLICIES. Insurance required hereunder shall be in
companies duly licensed to transact business in the state where the Premises are
located, and maintaining during the policy term a "General Policyholders Rating"
of at least B+, V, or such other rating as may be required by a Lender having a
lien on the Premises, as set forth in the most current issue of "Best's
Insurance Guide." Lessee and Lessor shall not do or permit to be done anything
which shall invalidate the insurance policies referred to in this Paragraph 8.
Each party shall cause to be delivered to the other party certified copies of
policies of such insurance or certificates evidencing the existence and amounts
of such insurance with the insureds and loss payable clauses as required by this
Lease. No such policy shall be cancelable or subject to modification except
after thirty (30) days prior written notice to the other. Each party shall at
least thirty (30) days prior to the expiration of such policies, furnish the
other with evidence of renewals or "insurance binders" evidencing renewal
thereof. If the Insuring Party shall fail to procure and maintain the insurance
required to be carried by the Insuring Party under this Paragraph 8, the other
Party may, but shall not be required to, procure and maintain the same, but at
the insuring party's expense. See Addendum 8.5.

      8.6   WAIVER OF SUBROGATION. Without affecting any other rights or
remedies, Lessee and Lessor ("Waiving Party") each hereby release and relieve
the other, and waive their entire right to recover damages (whether in contract
or in tort) against the other, for loss of or damage to the Waiving Party's
property arising out of or incident to the perils required to be insured against
under Paragraph 8. The effect of such releases and waivers of the right to
recover damages shall not be limited by the amount of insurance carried or
required, or by any deductibles applicable thereto. See Addendum 8.6.

      8.7   INDEMNITY. Except for Lessor's negligence and/or breach of express
warranties, Lessee shall indemnity, protect, defend and hold harmless the
Premises, Lessor and its agents, Lessor's partners and Lenders, from and against
any and all claims, loss of rents and/or damages, costs, liens, judgments,
penalties, permits, reasonable attorney's and consultant's fees, expenses and/or
liabilities arising out of, involving, or in dealing with Lessee's negligence or
willful


                                      -12-
<PAGE>   13
misconduct in connection with the occupancy of the Premises by Lessee, the
conduct of Lessee's business, any act, omission or neglect of Lessee, its
agents, contractors, employees or invitees, and out of any Default or Breach by
Lessee in the performance in a timely manner of any obligation on Lessee's part
to be performed under this Lease. The foregoing shall include, but not be
limited to, the defense or pursuit of any claim or any action or proceeding
involved therein, and whether or not litigated and/or reduced to judgment, and
whether well founded or not. In case any action or proceeding be brought against
Lessor by reason of any of the foregoing matters upon notice, the indemnifying
party shall defend the indemnified party at indemnifying party's expense by
counsel reasonably satisfactory to the indemnified party and shall cooperate
with the indemnified party in such defense.

      8.8   EXEMPTION OF LESSOR FROM LIABILITY. Except to the extent caused by
Lessor's negligence, willful misconduct or breach of this Lease, Lessor shall
not be liable for injury or damage to the person or goods, wares, merchandise or
other property of Lessee, Lessee's employees, contractors, invitees, customers,
or any other person in or about the Premises, whether such damage or injury is
caused by or results from fire, steam, electricity, gas, water or rain, or from
the breakage, leakage, obstruction or other defects of pipes, fire sprinklers,
wires, appliances, plumbing, air conditioning or lighting fixtures, or from any
other cause, whether the said injury or damage results from conditions arising
upon the Premises or upon other portions of the building of which the Premises
are a part, or from other sources or places, and regardless of whether the cause
of such damage or injury or the means of repairing the same is accessible or
not. Lessor shall not be liable for any damages arising from any act or neglect
of any other tenant of Lessor.

9.    DAMAGE OR DESTRUCTION.

      9.1   DEFINITIONS.

            (a)   "PREMISES PARTIAL DAMAGE" shall mean damage or destruction to
the improvements on the Premises, other than Lessee Owned Alterations and
Utility Installations, the repair cost of which damage or destruction is less
than 50% of the then Replacement Cost of the Premises immediately prior to such
damage or destruction, excluding from such calculation the value of the land and
Lessee Owned Alterations and Utility Installations.

            (b)   "PREMISES TOTAL DESTRUCTION" shall mean damage or destruction
to the Premises, other than Lessee Owned Alterations and Utility Installations
the repair cost of which damage or destruction is 50% or more of the then
Replacement Cost of the Premises immediately prior to such damage or
destruction, excluding from such calculation the value of the land and Lessee
Owned Alterations and Utility Installations.

            (c)   "INSURED LOSS" shall mean damage or destruction to
improvements on the Premises, other than Lessee Owned Alterations and Utility
Installations, which was caused by an event required to be


                                      -13-
<PAGE>   14
covered by the insurance described in Paragraph 8.3(a), irrespective of any
deductible amounts or coverage limits involved.

            (d)   "REPLACEMENT COST" shall mean the cost to repair or rebuild
the improvements owned by Lessor at the time of the occurrence to their
condition existing immediately prior thereto, including demolition, debris
removal and upgrading required by the operation of applicable building codes,
ordinances or laws, and without deduction for depreciation.

            (e)   "HAZARDOUS SUBSTANCE CONDITION" shall mean the occurrence or
discovery of a condition involving the presence of, or a contamination by a
Hazardous Substance as defined in Paragraph 6.2(a), in, on, or under the
Premises.

      9.2   PARTIAL DAMAGE--INSURED LOSS. If a Premises Partial Damage that is
an Insured Loss occurs, then Lessor shall, at Lessor's expense, repair such
damage (but not Lessee's Trade Fixtures or Lessee Owned Alterations and Utility
Installations) as soon as reasonably possible and this Lease shall continue in
full force and effect; provided however, that Lessee shall, at Lessor's
election, make the repair of any damage or destruction the total cost to repair
of which is $10,000 or less, and in such event, Lessor shall make the insurance
proceeds available to Lessee on a reasonable basis for that purpose.
Notwithstanding the foregoing, if the required insurance was not in force or the
insurance proceeds are not sufficient to effect such repair, the Insuring Party
shall promptly contribute the shortage in proceeds (except as to the deductible
which is Lessee's responsibility) as and when required to complete said repairs.
In the event, however, the shortage in proceeds was due to the tact that, by
reason of the unique nature of the improvements, full replacement cost insurance
coverage was not commercially reasonable and available, Lessor shall have no
obligation to pay for the shortage in insurance proceeds or to fully restore the
unique aspects of the Premises unless Lessee provides Lessor with the funds to
cover same, or adequate assurance thereof, within thirty (30) days following
receipt of written notice of such shortage and request therefor. If Lessor
receives said funds or adequate assurance thereof with said thirty (30) day
________________ responsible for making the repairs shall complete them as soon
as reasonably possible and this Lease shall remain in full force and effect. If
Lessor does not receive such funds or assurance within said period, Lessor may
nevertheless elect by written notice _______ Lessee within _________ (__) days
thereafter to make such restoration and repair as is commercially reasonable
with Lessor paying any shortage in proceeds, in which case this Lease shall
remain in full force and effect. If in such case Lessor does not so elect, then
this Lease shall terminate _____________ the occurrence of the damage or
destruction. Unless otherwise agreed, Lessee shall in no event have any right to
reimbursement from Lessor for any funds contributed by Lessee to repair any such
damage or destruction. Premises Partial Damage due to flood or earthquake shall
be subject to Paragraph 9.3 rather than Paragraph 9.2, notwithstanding that
there may be some insurance coverage, but the net proceeds of any such


                                      -14-
<PAGE>   15
insurance shall be made available for the repairs if made by either Party.

      9.3   PARTIAL DAMAGE--UNINSURED LOSS. If a Premises Partial Damage that is
not an Insured Loss occurs, Lessor may at Lessor's option, either: (i) repair
such damage as soon as reasonably possible at Lessor's expense, in which event
this Lease shall continue in full force and effect, or (ii) give written notice
to Lessee, within thirty (30) days after receipt by Lessor of knowledge of
occurrence of such damage of Lessor's desire to terminate this Lease as of the
date of the damage. In the event Lessor elects to give such notice of Lessor's
intention to terminate this Lease, Lessee shall have the right within ten (10)
days after the receipt of such notice to give written notice to Lessor of
Lessee's commitment to pay for the repair of such damage totally at Lessee's
expense and without reimbursement from Lessor. Lessee shall provide Lessor with
the required funds or satisfactory assurance thereof within thirty (30) days
following Lessee's said commitment. In such event this Lease shall continue in
full force and effect, and Lessor shall proceed diligently to make such repairs
as soon as reasonably possible and the required funds are available. If Lessee
does not give such notice and provide the funds or assurance thereof within the
times specified above, this Lease shall terminate as of the date of the damage.

      9.4   TOTAL DESTRUCTION. Notwithstanding any of the provisions hereof, if
a Premises Total Destruction occurs (including any destruction required by any
authorized public authority), this Lease shall terminate as of the date of such
Premises Total Destruction, whether or not the damage or destruction is an
Insured Loss or was caused by a negligent or willful act of Lessee.

      9.5   DAMAGES NEAR END OF TERM. If at any time during the last six (6)
months of the terms of this Lease there is damage for which the cost to repair
exceeds one (1) month's Base Rent, whether or not an Insured Loss either party
may at its option, terminate this Lease effective as of sixty (60) days
following the date of occurrence of such damage by giving written notice of its
election to do so within thirty (30) days after the date of occurrence of such
damage. Provided, however, if Lessee at that time has an exercisable option to
extend this Lease or to purchase the Premises, then Lessee may preserve this
Lease by, within twenty (20) days following the occurrence of the damage, or
before the expiration of the time provided in such option for its exercise,
whichever is earlier ("Exercise Period"), (i) exercising such option and (ii)
providing Lessor with any shortage in insurance proceeds (or adequate assurance
thereof) needed to make the repairs, unless the casualty was an insured loss. If
Lessee duly exercises such option during said Exercise Period and provides
Lessor with funds if required (or adequate assurance thereof) to cover any
shortage in insurance proceeds, Lessor shall, at Lessor's expense repair such
damage as soon as reasonably possible and this Lease shall continue in full
force and effect. If Lessee fails to exercise such option and provide such funds
or assurance during said Exercise Period, then Lessor may at Lessor's option
terminate this Lease following the occurrence of such


                                      -15-
<PAGE>   16
damage by giving written notice to Lessee of Lessor's election to do so within
ten (10) days after the expiration of the Exercise Period, notwithstanding any
term or provision in the grant of option to the contrary.

      9.6   ABATEMENT OF RENT; LESSEE'S REMEDIES.

            (a)   In the event of damage described in Paragraph 9.2 (Partial
Damage-Insured), whether or not Lessor or Lessee repairs or restores the
Premises, the Base Rent, Real Property Taxes, insurance premiums, and other
charges, if any, payable by Lessee hereunder for the period during which such
damage, its repair or the restoration continues, shall be abated in proportion
to the degree to which Lessee's use of the Premises is impaired, from the date
of the casualty. Except for abatement of Base Rent, Real Property Taxes, a
common costs, and other charges, if any, as aforesaid, all other obligations of
Lessee hereunder shall be performed by Lessee.

            (b)   If Lessor shall be obligated to repair or restore the Premises
under the provisions of this Paragraph 9 and shall not commence, in a
substantial meaningful way, the repair or restoration of the Premises within
ninety (90) days after such obligation shall accrue, Lessee may, at any time
prior to commencement of such repair or restoration, give written notice to
Lessor and to any Lenders of which Lessee has actual notice of Lessee's election
to terminate this Lease on a date not less than sixty (60) days following the
giving of such notice. If Lessee gives such notice to Lessor and such Lenders
and such repair or restoration is not commenced within thirty (30) days after
receipt of such notice, this Lease shall terminate as of the date specified in
said notice. If Lessor or a Lender commences the repair or restoration of the
Premises within thirty (30) days after receipt of such notice, this Lease shall
continue in full force and effect. "Commence" as used in this Paragraph shall
mean either the unconditional authorization of the preparation of the required
plans, or the beginning of the actual work on the Premises, whichever first
occurs.

      9.7   HAZARDOUS SUBSTANCE CONDITIONS. If a Hazardous Substance Condition
occurs, unless Lessee is legally responsible therefor (in which case Lessee
shall make the investigation and remediation thereof required by Applicable Law
and this Lease shall continue in full force and effect, but subject to Lessor's
rights under Paragraph 13), Lessor may at Lessor's option either (i) investigate
and remediate such Hazardous Substance Condition, if required, as soon as
reasonably possible at Lessor's expense, in which event this Lease shall
continue in full force and effect, or (ii) if the estimated cost to investigate
and remediate such condition exceeds twelve (12) times the then monthly Base
Rent or $100,000, whichever is greater, give written notice to Lessee within
thirty (30) days after receipt by Lessor of knowledge of the occurrence of such
Hazardous Substance Condition of Lessor's desire to terminate this Lease as of
the date sixty (60) days following the giving of such notice. In the event
Lessor elects to give such notice of Lessor's intention to terminate this Lease,
Lessee shall have the right within ten (10) days after the receipt of such


                                      -16-
<PAGE>   17
notice to give written notice to Lessor of Lessee's commitment to pay for the
investigation and remediation of such Hazardous Substance Condition totally at
Lessee's expense and without reimbursement from Lessor except to the extent of
an amount equal to twelve (12) times the then monthly Base Rent or $100,000,
whichever is greater. Lessee shall provide Lessor with the funds required of
Lessee or satisfactory assurance thereof within thirty (30) days following
Lessee's said commitment. In such event this Lease shall continue in full force
and effect, and Lessor shall proceed to make such investigation and remediation
as soon as reasonably possible and the required funds are available. If Lessee
does not give such notice and provide the required funds or assurance thereof
within the times specified above, this Lease shall terminate as of the date
specified in Lessor's notice of termination. If a Hazardous Substance Condition
occurs for, which Lessee is not legally responsible, there shall be abatement of
Lessee's obligations under this Lease to the same extent as provided in
Paragraph 9.6(a).

      9.8   TERMINATION-ADVANCE PAYMENTS. Upon termination of this Lease
pursuant to this Paragraph 9, an equitable adjustment shall be made concerning
advance Base Rent and any other advance payments made by Lessee to Lessor.
Lessor shall, in addition, return to Lessee so much of Lessee's Security Deposit
as has not been, or is not then required to be, used by Lessor under the terms
of this Lease.

      9.9   WAIVE STATUTES. Lessor and Lessee agree that the terms of this Lease
shall govern the effect of any damage to or destruction of the Premises with
respect to the termination of this Lease and hereby waive the provisions of any
present or future statute to the extent inconsistent herewith.

10.   REAL PROPERTY TAXES.

      10.1  (a)   PAYMENT OF TAXES. Lessee shall pay the Real Property Taxes, as
defined in Paragraph 10.2, applicable to the Premises during the term of this
Lease. Subject to Paragraph 10.1(b), all such payments shall be made at least
ten (10) days prior to the delinquency date of the applicable installment.
Lessee shall promptly furnish Lessor with satisfactory evidence that such taxes
have been paid. If any such taxes to be paid by Lessee shall cover any period of
time prior to or after the expiration or earlier termination of the term hereof,
Lessee's share of such taxes shall be equitably prorated to cover the period of
time within the tax fiscal year this Lease is in effect, and Lessor shall
reimburse Lessee for any overpayment after such proration. If Lessee shall fail
to pay any Real Property Taxes required by this Lease to be paid by Lessee,
Lessor shall have the right to pay the same, and Lessee shall reimburse Lessor
therefor upon demand.

            (b)   ADVANCE PAYMENT. In order to insure payment when due and
before delinquency of any or all Real Property Taxes, Lessor reserves the right,
at Lessor's option, to estimate the current Real Property Taxes applicable to
the Premises, and to require such current year's Real Property Taxes, to be paid
in advance to Lessor by Lessee


                                      -17-
<PAGE>   18
or (ii) monthly in advance with the payment of the Base Rent. If Lessor elects
to require payment monthly in advance, the monthly payment shall be that equal
monthly amount which, over the number of months remaining before the month in
which the applicable tax installment would become delinquent (and without
interest thereon), would provide a fund large enough to fully discharge before
delinquency the estimated installment of taxes to be paid. When the actual
amount of the applicable tax bill is known, the amount of such equal monthly
advance payment shall be adjusted as required to provide the fund needed to pay
the applicable taxes before delinquency. If the amounts paid to Lessor by Lessee
under the provisions of this Paragraph are insufficient to discharge the
obligations of Lessee to pay such Real Property Taxes as the same become due,
Lessee shall pay to Lessor, upon Lessor's demand, such additional sums as are
necessary to pay such obligations. All moneys paid to Lessor under this
Paragraph may be intermingled with other moneys of Lessor and shall not bear
interest. In the event of a Breach by Lessee in the performance of the
obligations of Lessee under this Lease, then any balance of funds paid to Lessor
under the provisions of this Paragraph may, subject to proration as provided in
Paragraph 10.1(a), at the option of Lessor, be treated as an additional Security
Deposit under Paragraph 5.

      10.2  DEFINITION OF "REAL PROPERTY TAXES." As used herein,the term "Real
Property Taxes" shall include any form of real estate tax or assessment,
general, special, ordinary or extraordinary, and any improvement bond or bonds,
levy or tax (other than inheritance, personal income or estate taxes) imposed
upon the Premises by any authority having the direct or indirect power to tax,
including any city, state or federal government, or any school, agricultural,
sanitary, fire, street, drainage or other improvement district thereof, levied
against any legal or equitable interest of Lessor in the Premises or in the real
property of which the Premises are a part, Lessor's right to rent or other
income therefrom. The term "Real Property Taxes" shall also include any tax,
fee, levy, assessment or charge, or any increase therein, imposed by reason of
events occurring, or changes in applicable law taking effect, during the term of
this Lease, ________________________________, the execution of this Lease, or
any modification, amendment or transfer thereof, and whether or not contemplated
by the Parties. See Addendum 10.2.

      10.3  JOINT ASSESSMENT. If the Premises are not separately assessed,
Lessee's liability shall be an equitable proportion of the Real Property Taxes
for the land and improvements included within the tax parcel assessed, such
proportion to be determined by Lessor from the respective valuations assigned in
the assessors work sheets or such other information as may be reasonably
available. Lessor's reasonable determination thereof, in good faith, shall be
conclusive. Lessee's share of property tax on the real property other than
improvements is 37.318%.

      10.4  PERSONAL PROPERTY TAXES. Lessee shall pay prior to delinquency all
taxes assessed against and levied upon Lessee Owned Alterations, Utility
Installations, Trade Fixtures, furnishings,


                                      -18-
<PAGE>   19
equipment and all personal property of Lessee contained in the Premises or
elsewhere. When possible, Lessee shall cause its Trade Fixtures, furnishings,
equipment and all other personal property to be assessed and billed separately
from the real property of Lessor. ______________ of Lessee's said personal
property shall be assessed with Lessor's real property, Lessee shall pay Lessor
the taxes attributable to Lessee within ten (10) days after receipt of a written
statement setting forth the taxes applicable to Lessee's property or, at
Lessor's option, as provided in Paragraph 10.1(b).

      10.5  UTILITIES. Lessee shall pay for all water, gas, heat, light, power,
telephone, trash disposal and other utilities and services supplied to the
Premises, together with any taxes thereon. If any such services are not
separately metered to Lessee, Lessee shall pay a reasonable proportion, to be
determined by Lessor, of all charges jointly metered with other premises.

11.   [INTENTIONALLY OMITTED]

12.   ASSIGNMENT AND SUBLETTING. See Addendum 12.

      12.1  LESSOR'S CONSENT REQUIRED.

            (a)   Lessee shall not voluntarily or by operation of law assign,
transfer, mortgage or otherwise transfer or encumber (collectively,
"assignment") or sublet all or any part of Lessee's interest in this Lease or in
the Premises without Lessor's prior written consent given under and subject to
the terms of Paragraph 36.

            (b)   A change in the control of Lessee shall constitute an
assignment requiring Lessor's consent. The transfer, on a cumulative basis, of
fifty-one percent (51%) or more of the voting control of Lessee shall constitute
a change in control for this purpose.

            (c)   The involvement of Lessee or its assets in any transaction, or
series of transactions (by way of merger, sale, acquisition, financing,
refinancing, transfer, leveraged buy-out or otherwise), whether or not a formal
assignment or hypothecation of this Lease or Lessee's assets occurs which
results of will result in a reduction of the Net Worth of Lessee, as hereinafter
defined, by an amount equal to or greater than fifty percent (50%) of such Net
Worth of Lessee as it was represented to Lessor at the time of the execution by
Lessor of this Lease or at the time of the most recent assignment to which
Lessor has consented, or as it exists immediately prior to said transaction or
transactions constituting such reduction, at whichever time said Net Worth of
Lessee was or is greater, shall be considered an assignment of this Lease by
Lessee to which Lessor may reasonably withhold its consent. "Net Worth of
Lessee" for purposes of this Lease shall be the net worth of Lessee (excluding
any guarantors) established, under generally accepted accounting principles
consistently applied.


                                      -19-
<PAGE>   20
            (d)   An assignment or subletting of Lessee's interest in this Lease
without Lessor's specific prior written consent shall be a Default curable after
notice per Paragraph 13.1(c).

      12.2  TERMS AND CONDITIONS APPLICABLE TO ASSIGNMENT AND SUBLETTING.

            (a)   Regardless of Lessor's consent, any assignment or subletting
shall not: (i) be effective without the express written assumption by such
assignee or sublessee of the obligations of Lessee under this Lease arising
after the date of the assignment, (ii) release Lessee of any obligations
hereunder, or (iii) alter the primary liability of Lessee for the payment of
Base Rent and other sums due Lessor hereunder or for the performance of any
other obligations to be performed by Lessee under this Lease.

            (b)   Lessor may accept any rent or performance of Lessee's
obligations from any person other than Lessee pending approval or disapproval of
an assignment. Neither a delay in the approval or disapproval of such assignment
nor the acceptance of any rent or performance shall constitute a waiver or
estoppel of Lessor's right to exercise its remedies for the Default or Breach by
Lessee of any of the terms, covenants or conditions of this Lease.

            (c)   The consent of Lessor to any assignment or subletting shall
not constitute a consent to any subsequent assignment or subletting by Lessee or
to any subsequent or successive assignment or subletting by the sublessee.
However, Lessor may consent to subsequent sublettings and assignments of the
sublease or any amendments or modifications thereto without notifying Lessee or
anyone else liable on the Lease or sublease and without obtaining their consent,
and such action shall not relieve such persons from liability under this Lease
or sublease.

            (d)   In the event of any Default or Breach of Lessee's obligations
under this Lease, Lessor may proceed directly against Lessee, any Guarantors or
any one else responsible for the performance of the Lessee's obligations under
this Lease, including the sublessee, without first exhausting Lessor's remedies
against any other person or entity responsible therefor to Lessor, or any
security held by Lessor or Lessee.

            (e)   Each request for consent to an assignment or subletting shall
be in writing, accompanied by information relevant to Lessor's determination as
to appropriateness of the proposed assignee or sublessee including but not
limited to the intended use and/or required modification of the Premises, if
any, together with a non-refundable deposit of $250 of the current monthly Base
Rent, whichever is greater, as reasonable consideration for Lessor's considering
and processing the request for consent. Lessee agrees to provide Lessor with
such other or additional information and/or documentation as may be reasonably
requested by Lessor.


                                      -20-
<PAGE>   21
            (f)   Any assignee of, or subleases under, this Lease shall, by
reason of accepting such assignment or entering into such sublease, be deemed,
for the benefit of Lessor, to have assumed and agreed to conform and comply with
each and every term, covenant, condition and obligation herein to be observed or
performed by Lessee during the term of said assignment or sublease, other than
such obligations as are contrary to or inconsistent with provisions of an
assignment or sublease to which Lessor has specifically consented in writing.

      12.3  ADDITIONAL TERMS AND CONDITIONS APPLICABLE TO SUBLETTING. The
following terms and conditions shall apply to any subletting by Lessee of all or
a part of the Premises and shall be deemed included in all subleases under this
Lease whether or not expressly incorporated therein:

            (a)   In the event of a Breach by Lessee in the performance of its
obligations under this Lease. Lessor, at its option and without any obligation
to do so, may require any sublessee to attorn to Lessor, in which event Lessor
shall undertake the obligations of the sublessor under such sublease from the
time of the exercise of said option to the expiration of such sublease;
provided, however, Lessor shall not be liable for any prepaid rents or security
deposit paid by such sublessee to such sublessor or for any other prior Defaults
or Breaches of such sublessor under such sublease.

13.   DEFAULT; BREACH; REMEDIES.

      13.1  _____________________. ____________________________
__________________________________________________ Lessor in connection with a
Lessee Default or Breach (as hereinafter defined, Lessee shall pay actual and
reasonable attorneys fees not to exceed $350,000 for legal services and costs in
the preparation and service of a notice of Default, ___________ by the Lessee to
observe, comply with or perform any of the terms, covenants, conditions or rules
applicable to Lessee under this Lease. A "Breach" is defined as the occurrence
of any one or more of the following Defaults, and, where a grace period for cure
after notice is specified herein, the failure by Lessee to cure such Default
prior to the expiration of the applicable grace period, and shall entitled
Lessor to pursue the remedies set forth in Paragraphs 13.2 and/or 13.3:

            (a)   The abandonment of the Premises.

            (b)   Except as expressly otherwise provided in this Lease, the
failure by Lessee to make any payment of Base Rent or any other monetary payment
required to be made by Lessee hereunder, whether to Lessor or to a third party,
as and when due, the failure by Lessee to provide Lessor with reasonable
evidence of insurance or surety bond required under this Lease, or the failure
of Lessee to fulfill any obligation under this Lease which endangers or
threatens life or property, where such failure continues for a period of ten
(10) days following written notice thereof by or on behalf of Lessor to Lessee.


                                      -21-
<PAGE>   22
            (c)   Except as expressly otherwise provided in this Lease, the
failure by Lessee to provide Lessor with reasonable written evidence (in duly
executed original form, if applicable) of (i) compliance with applicable law per
Paragraph 6.3, (ii) the inspection maintenance and service contracts required
under Paragraph 7.1(b), (iii) the rescission of an unauthorized assignment or
subletting per Paragraph 12.1(b), (iv) a Tenancy Statement per Paragraphs 16 or
37, (v) the subordination or non-subordination of this Lease per Paragraph 30,
(vi) the guaranty of the performance of Lessee's obligations under this Lease if
required under Paragraphs 1.11 and 37, (vii) the execution of any document
requested under Paragraph 42 (easements), or (viii) any other documentation or
information which Lessor may reasonably require of Lessee under the terms of
this Lease, where any such failure continues for a period of thirty (30) days
following written notice by or on behalf of Lessor to Lessee.

            (d)   A Default by Lessee as to the terms, covenants, conditions or
provisions of this Lease, or of the rules adopted under Paragraph 40 hereof,
that are to be observed, complied with or performed by Lessee, other than those
described in subparagraphs (a), (b) or (c), above, where such Default continues
for a period of thirty (30) days after written notice thereof by or on behalf of
Lessor to Lessee; provided, however, that if the nature of Lessee's Default is
such that more than thirty (30) days are reasonably required for its cure, then
it shall not be deemed to be a Breach of this Lease by Lessee if Lessee
commences such cure within said thirty (30) day period and thereafter diligently
prosecutes such cure to completion.

            (e)   The occurrence of any of the following events: (i) The making
by Lessee of any general arrangement or assignment for the benefit of creditors
(ii) Lessee's becoming a "debtor" as defined in 11 U.S.C. ss. 101 or any
successor statute thereto (unless, in the case of a petition filed against
Lessee, the same is dismissed within sixty (60) days); (iii) the appointment of
a trustee or receiver to take possession of substantially all of Lessee's assets
located at the Premises or of Lessee's interest in this Lease, where possession
is not restored to Lessee within thirty (30) days; or (iv) the attachment,
execution or other judicial seizure of substantially all of Lessee's assets
located at the Premises or of Lessee's interest in this Lease, where such
seizure is not discharged within thirty (30) days: provided, however, in the
event that any provision of this subparagraph (e) is contrary to any applicable
law, such provision shall be of no force or effect, and not affect the validity
of the remaining provisions.

            (f)   The discovery by Lessor that any financial statement given to
Lessor by Lessee or any Guarantor of Lessee's obligations hereunder was
materially false.

      13.2  REMEDIES. If Lessee fails to perform any affirmative duty or
obligation of Lessee under this Lease, within ten (10) days after written notice
to Lessee (or in case of an emergency, without notice), Lessor may at its option
(but without obligation to do so), perform


                                      -22-
<PAGE>   23
such duty or obligation on Lessee's behalf, including but not limited to the
obtaining of reasonably required bonds, insurance policies, or governmental
licenses, permits or approvals. The costs and expenses of any such performance
by Lessor shall be due and payable by Lessee to Lessor upon invoice therefor. If
any check given to Lessor by Lessee shall not be honored by the bank upon which
it is drawn, Lessor, at its option, may require all future payments to be made
under this Lease by Lessee, to be made only by cashier's check. In the event of
a Breach of this Lease by Lessee, as defined in Paragraph 13.1, with or without
further notice or demand, and without limiting Lessor in the exercise of any
right or remedy which Lessor may have by reason of such Breach, Lessor may:

            (a)   Terminate Lessee's right to possession of the Premises by any
lawful means, in which case this Lease and the term hereof shall terminate and
Lessee shall immediately surrender possession of the Premises to Lessor. In such
event Lessor shall be entitled to recover from Lessee: (i) the worth at the time
of the award of the unpaid rent which had been earned at the time of
termination; (ii) the worth at the time of award of the amount by which the
unpaid rent which would have been earned after termination until the time of
award exceeds the amount of such rental loss that the Lessee proves could have
been reasonably avoided; (iii) the worth at the time of award of the amount by
which the unpaid rent for the balance of the term after the time of award
exceeds the amount of such rental loss that the Lessee proves could be
reasonably avoided; and (iv) any other amount necessary to compensate Lessor for
all the detriment proximately caused by the Lessee's failure to perform its
obligations under this Lease or which in the ordinary course of things would be
likely to result therefrom, including but not limited to the cost of recovering
possession of the Premises, expenses of reletting including necessary renovation
and alteration of the Premises, reasonable attorneys' fees, and that portion of
the leasing commission paid by Lessor applicable to the unexpired term of this
Lease. The worth at the time of award of the amount referred to in provision
(iii) of the prior sentence shall be computed by discounting such amount at the
discount rate of the Federal Reserve Bank of San Francisco at the time of award
plus one percent. Efforts by Lessor to mitigate damages caused by Lessee's
Default or Breach of this Lease shall not waive Lessor's right to recover
damages under this Paragraph. If termination of this Lease is obtained through
the provisional Remedy of unlawful detainer, Lessor shall have the right to
recover in such proceeding the unpaid rent and damages as are recoverable
therein, or Lessor may reserve therein the right to recover all or any part
thereof in a separate suit for such rent and/or damages. If a notice and grace
period required under subparagraphs 13.1(b), (c) or (d) was not previously
given, a notice to pay rent or quit, or to perform or quit, as the case may be,
given to Lessee under any statute authorizing the forfeiture of leases for
unlawful detainer shall also constitute the applicable notice for grace period
purposes required by subparagraphs 13.1(b), (c) or (d). In such case, the
applicable grace period under subparagraphs 13.1(b), (c) or (d) and under the
unlawful detainer statute shall run concurrently after the one such statutory
notice, and the failure of Lessee to cure the Default within the greater of the
two such grace


                                      -23-
<PAGE>   24
periods shall constitute both an unlawful detainer and a Breach of this Lease
entitling Lessor to the remedies provided for in this Lease and/or by said
statute.

            (b)   Continue the Lease and Lessee's right to possession in effect
(in California under California Civil Code Section 1951.4) after Lessee's Breach
and abandonment and recover the rent as it becomes due, provided Lessee has the
right to sublet or assign, subject only to reasonable limitations. See
Paragraphs 12 and 36 for the limitations on assignment and subletting which
limitations Lessee and Lessor agree are reasonable. Acts of maintenance or
preservation, efforts to relet the Premises, or the appointment of a receiver to
protect the Lessor's interest under the Lease, shall not constitute a
termination of the Lessee's right to possession.

            (c)   Pursue any other remedy now or hereafter available to Lessor
under the laws or judicial decisions of the state wherein the Premises are
located.

            (d)   The expiration or termination of this Lease and/or the
termination of Lessee's right to possession shall not relieve Lessee from
liability under any indemnity provisions of this Lease as to matters occurring
or accruing during the term hereof or by reason of Lessee's occupancy of the
Premises.

      13.3  INDUCEMENT RECAPTURE IN EVENT OF BREACH. Any agreement by Lessor for
free or abated rent or other charges applicable to the Premises, or for giving
or paying by Lessor to or for Lessee of any cash or other bonus, inducement or
consideration for Lessee's entering into this Lease, all of which concessions
are hereinafter referred to as "Inducement Provisions," shall be deemed
conditioned upon Lessee's full and faithful performance of all of the terms,
covenants and conditions of this Lease to be performed or observed by Lessee
during the term hereof as the same may be extended. Upon the occurrence of a
Breach of this Lease by Lessee, as defined in Paragraph 13.1, any such
Inducement Provision shall automatically be deemed deleted from this Lease and
of no further force or effect, and any rent, other charge, bonus, inducement or
consideration theretofore abated, given or paid by Lessor under such an
Inducement Provision shall be immediately due and payable by Lessee to Lessor,
and recoverable by Lessor as additional rent due under this Lease,
notwithstanding any subsequent cure of said Breach by Lessee. The acceptance by
Lessor of rent or the cure of the Breach which initiated the operation of this
Paragraph shall not be deemed a waiver by Lessor of the provisions of this
Paragraph unless specifically so stated in writing by Lessor at the time of such
acceptance.

      13.4  LATE CHARGES. Lessee hereby acknowledges that late payment by Lessee
to Lessor of rent and other sums due hereunder will cause Lessor to incur costs
not contemplated by this Lease, the exact amount of which will be extremely
difficult to ascertain. Such costs include, but are not limited to, processing
and accounting charges, and late charges which may be imposed upon Lessor by the
terms of any ground lease, mortgage or trust deed covering the Premises.


                                      -24-
<PAGE>   25
Accordingly, if any installment of rent or any other sum due from Lessee shall
not be received by Lessor or Lessor's designee within five (5) days after such
amount shall be due, then, without any requirement for notice to Lessee, Lessee
shall pay to Lessor a late charge equal to three percent (3%) of such overdue
amount. The parties hereby agree that such late charge represents a fair and
reasonable estimate of the costs Lessor will incur by reason of late payment by
Lessor. Acceptance of such late charge by Lessor shall in no event constitute a
waiver of Lessee's Default or Breach with respect to such overdue amount, nor
prevent Lessor from exercising any of the other rights and remedies granted
hereunder. In the event that a late charge is payable hereunder, whether or not
collected, for three (3) consecutive installments of Base Rent, then
notwithstanding Paragraph 4.1 or any other provision of this Lease to the
contrary, Base Rent shall, at Lessor's option, become due and payable quarterly
in advance.

      13.5  BREACH BY LESSOR. Lessor shall not be deemed in breach of this Lease
unless Lessor fails within a reasonable time to perform an obligation required
to be performed by Lessor. For purposes of this Paragraph 13.5, a reasonable
time shall in no event be less than thirty (30) days after receipt by Lessor,
and by the holders of any ground lease, mortgage or deed of trust covering the
Premises whose name and address shall have been furnished Lessee in writing for
such purpose, of written notice specifying wherein such obligation of Lessor has
not been performed; provided, however, that if the nature of Lessor's
obligations __________________________________________ required for its
performance, then Lessor shall not __________________
_____________________________________ thirty (30) day period and thereafter
diligently pursued to completion.

14.   CONDEMNATION. If the Premises or any portion thereof are taken under the
power of eminent domain or sold under the threat of the exercise of said
___________ (all of which are herein called Condemnation"), this Lease shall
terminate as to the part so taken as of the date the condemning authority takes
______________ or possession, whichever first occurs. If more than ten percent
(10%) of the floor area of the Premises, or more than twenty-five percent (25%)
of the __________ area not occupied by any building, is taken by condemnation,
Lessee may, at Lessee's option, to be exercised in writing within ten (10) days
after Lessor shall have given Lessee written notice of such taking (or in the
absence of such notice, within ten (10) days after the condemning authority
shall have taken possession) terminate this Lease as of the date the condemning
authority takes such possession. If Lessee does not terminate this Lease in
accordance with the foregoing, this Lease shall remain in full force and effect
as to the portion of the Premises remaining, except that the Base Rent shall be
reduced in the same proportion as the rentable floor area of the Premises taken
bears to the total rentable floor area of the building located on the Premises.
No reduction of Base Rent shall occur if the only portion of the Premises taken
is land on which there is no building. Any award for the taking ____________ or
any part of the Premises under the power of eminent domain or any payment made
under threat of the exercise of such power


                                      -25-
<PAGE>   26
shall be the property of Lessor, whether such award shall be made as
compensation for diminution in value of the leasehold or for the taking of the
fee, or as severance damages: provided, however, that Lessee shall be entitled
to any compensation, separately awarded to Lessee for Lessee's relocation
expenses and/or loss of Lessee's Trade Fixtures and Lessee shall be entitled to
a portion of any award attributable to the value of any Tenant Improvements,
alterations or utility installations paid for by Lessee. In the event that this
Lease is not terminated by reason of such condemnation, Lessor shall to the
extent of its net severance damages received, over and above the legal and other
expenses incurred by Lessor in the condemnation matter, repair any damage to the
Premises caused by such condemnation, except to the extent that Lessee has been
reimbursed therefor by the condemning authority.

15.   BROKER'S FEE.

      15.1  BROKER'S FEE. The Brokers named in Paragraph 1.10 are the procuring
causes of this Lease.

      15.2  Upon execution of this Lease by both Parties, Lessor shall pay to
said Brokers jointly, or in such separate shares as they may mutually designate
in writing, a fee as set forth in a separate written agreement between Lessor
and said Brokers (or in the event there is no separate written agreement between
Lessor and said Brokers, the sum of $ per agreement for brokerage services
rendered by said Brokers to Lessor in this transaction.

      15.3  Unless Lessor and Brokers have otherwise agreed in writing, Lessor
further agrees that: (a) if Lessee exercises any Option (as defined in Paragraph
39.1) or any Option subsequently granted which is substantially similar to an
Option granted to Lessee in this Lease, or (b) if Lessee acquires any rights to
the Premises or other premises described in this Lease which are substantially
similar to what Lessee would have acquired had an Option herein granted to
Lessee been exercised, or (c) if Lessee remains in possession of the Premises,
with the consent of Lessor, after the expiration of the term of this Lease after
having failed to exercise an Option, or (d) if said Brokers are the procuring
cause of any other lease or sale entered into between the Parties pertaining to
the Premises and/or any adjacent property in which Lessor has an interest, or
(e) if Base Rent is increased, whether by agreement or operation of an
escalation clause herein, then as to any of said transactions, Lessor shall pay
said Brokers a fee in accordance with the schedule of said Brokers in effect at
the time of the execution of this Lease.

      15.4  Any buyer or transferee of Lessor's interest in this Lease, whether
such transfer is by agreement or by operation of law, shall be deemed to have
assumed Lessor's obligation under this Paragraph 15. Each Broker shall be a
third party beneficiary of the provisions of this Paragraph 15 to the extent of
its interest in any commission arising from this Lease and may enforce that
right directly against Lessor and its successors.


                                      -26-
<PAGE>   27
      15.5  Lessee and Lessor each represent and warrant to the other that it
has had no dealings with any person, firm, broker or finder (other than the
Brokers, if any named in Paragraph 1.10) in connection with the negotiation of
this Lease and/or the consummation of the transaction contemplated hereby, and
that no broker or other person, firm or entity other than said named Brokers is
entitled to any commission or finder's fee in connection with said transaction.
Lessee and Lessor do each hereby agree to indemnify, protect, defend and hold
the other harmless from and against liability for compensation or charges which
may be claimed by any such unnamed broker, finder or other similar party by
reason of any dealings or actions or the indemnifying Party, including any
costs, expenses, attorneys' fees reasonably incurred with respect thereto.

      15.6  Lessor and Lessee hereby consent to and approve all agency
relationships, including any dual agencies, indicated in Paragraph 1.10.

16.   TENANCY STATEMENT.

      16.1  Each Party (as "Responding Party") shall within ten (10) days after
written notice from the other Party (the "Requesting Party") execute,
acknowledge and deliver to the Requesting party a statement in writing in form
similar to the current "Tenancy Statement" form published by the American
Industrial Real Estate Association, plus such additional information,
confirmation and/or statements as may be reasonably requested by the Requesting
Party.

      16.2  If Lessor desires to finance, refinance, or sell the Premises, any
part thereof, or the building of which the Premises are a part, Lessee and all
Guarantors of Lessee's performance hereunder shall deliver to any potential
lender or purchaser designated by Lessor such financial statements of Lessee and
such Guarantors as may be reasonably required by such lender or purchaser,
including but not limited to Lessee's financial statements for the past three
(3) years. All such financial statements shall be received by Lessor and such
lender or purchaser in confidence and shall be used only for the purposes herein
set forth.

17.   LESSOR'S LIABILITY. The term "Lessor" as used herein shall mean the owner
or owners at the time in question of the fee title to the Premises, or, if this
is a sublease, of the lessee's interest in the prior lease. In the event of a
transfer of Lessor's title or interest in the Premises or in this Lease, Lessor
shall deliver to the transferee or assignee in cash or by credit) any unused
Security Deposit held by Lessor at the time of such transfer or assignment.
Except as provided in Paragraph 15, upon such transfer or assignment and
delivery of the Security Deposit, as aforesaid, the prior Lessor shall be
relieved of all liability with respect to the obligations and/or covenants under
this Lease thereafter to be performed by the Lessor. Subject to the foregoing,
the obligations and/or covenants in this Lease to be performed by the Lessor
shall be binding only upon the Lessor as hereinabove defined.


                                      -27-
<PAGE>   28
18.   SEVERABILITY. The invalidity of any provision of this Lease, as determined
by a court of competent jurisdiction, shall in no way affect the validity of any
other provision hereof.

19.   INTEREST ON PAST-DUE OBLIGATIONS. Any monetary payment due either party
hereunder, other than late charges, not received by Lessor within thirty (30)
days following the date on which it was due, shall bear interest from the
thirty-first (31st) day after notice of delinquency due at the rate of prime +2%
per annum, but not exceeding the maximum rate allowed by law, in addition to the
late charge provided for in Paragraph 13.4.

20.   TIME OF ESSENCE. Time is of the essence with respect to the performance of
all obligations to be performed or observed by the Parties under this Lease.

21.   RENT DEFINED. All monetary obligations of Lessee to Lessor under the terms
of this Lease are deemed to be rent.

22.   NO PRIOR OR OTHER AGREEMENTS; BROKER DISCLAIMER. This Lease contains all
agreements between the Parties with respect to any matter mentioned herein, and
no other prior or contemporaneous agreement or understanding shall be effective.
Lessor and Lessee each represents and warrants to the Brokers that it has made,
and is relying solely upon, its own investigation as to the nature, quality,
character and financial responsibility of the other Party to this Lease and as
to the nature, quality and character of the Premises. Brokers have no
responsibility with respect thereto or with respect to any default or breach
hereof by either Party.

23.   NOTICES.

      23.1  All notices required or permitted by this Lease shall be in writing
and may be delivered in person (by hand or by messenger or courier service) or
may be sent by regular, certified or registered mail or U.S. Postal Service
Express Mail, with postage prepaid, or by facsimile transmission, and shall be
deemed sufficiently given if served in a manner specified in this Paragraph 23.
The addresses noted adjacent to a Party's signature on this Lease shall be that
Party's address for delivery or mailing of notice purposes. Either Party may by
written notice to the other specify a different address for notice purposes,
except that upon Lessee's taking possession of the Premises, the Premises shall
constitute Lessee's address for the purpose of mailing or delivering notices to
Lessee. A copy of all notices required or permitted to be given to Lessor
hereunder shall be concurrently transmitted to such party or parties at such
addresses as Lessor may from time to time hereafter designate by written notice
to Lessee.

      23.2  Any notice sent by registered or certified mail, return receipt
requested, shall be deemed given on the date of delivery shown on the receipt
card, or if no delivery date is shown, the postmark thereon, if sent by regular
mail the notice shall be deemed given forty-eight (48) hours after the same is
addressed as required herein


                                      -28-
<PAGE>   29
and mailed with postage prepaid. Notices delivered by United States Express Mail
or overnight courier that guarantees next day delivery shall be deemed given
twenty-four (24) hours after delivery of same to the United States Postal
Service or courier. If any notice is transmitted by facsimile transmission or
similar means, the same shall be deemed served or delivered upon telephone
confirmation of receipt of the transmission thereof, provided a copy is also
delivered via delivery or mail. If notice is received on a Sunday or legal
holiday, it shall be deemed received on the next business day.

24.   WAIVERS. No waiver by Lessor or Lessee of the Default or Breach of any
term, covenant or condition hereof by either party, shall be deemed a waiver of
any other term, covenant or condition hereof, or of any subsequent Default or
Breach by either party of the same or of any other term, covenant or condition
hereof. Lessor's consent to, or approval of, any act shall not be deemed to
render unnecessary the obtaining of a party's consent to, or approval of, any
subsequent or similar act by either party, or be construed as the basis of an
estoppel to enforce the provision or provisions of this Lease requiring such
consent. Regardless of either party's knowledge of a Default or Breach at the
time of accepting rent, the acceptance of rent by Lessor shall not be a waiver
of any preceding Default or Breach by Lessee of any provision hereof, other than
the failure of Lessee to pay the particular rent so accepted. Any payment given
Lessor by Lessee may be accepted by Lessor on account of moneys or damages due
Lessor, notwithstanding any qualifying statements or conditions made by Lessee
in connection therewith, which such statements and/or conditions shall be of no
force or effect whatsoever unless specifically agreed to in writing by Lessor at
or before the time of deposit of such payment.

25.   RECORDING. Either Lessor or Lessee shall, upon request of the other,
execute, acknowledge and deliver to the other a short form memorandum of this
Lease for recording purposes. The Party requesting recordation shall be
responsible for payment of any fees or taxes applicable thereto.

26.   NO RIGHT TO HOLDOVER. Lessee has no right to retain possession of the
Premises or any part thereof beyond the expiration or earlier termination of
Lease.

27.   CUMULATIVE REMEDIES. No remedy or election hereunder shall be deemed
exclusive but shall, wherever possible, be cumulative with all other remedies at
law or in equity.

28.  

29.   BINDING EFFECT; CHOICE OF LAW. This Lease shall be binding upon the
parties, their personal representatives, successors and assigns and be governed
by the laws of the State in which the Premises are located. Any litigation
between the Parties hereto concerning this Lease shall be initiated in the
county in which the Premises are located.


                                      -29-
<PAGE>   30
30.   SUBORDINATION; ATTORNMENT; NON-DISTURBANCE.

      30.1  SUBORDINATION. This Lease and any Option granted hereby shall be
subject and subordinate to any ground lease, mortgage, deed of trust, or other
hypothecation or security device (collectively, "Security Device"), now or
hereafter placed by Lessor upon the real property of which the Premises are a
part, to any and all advances made on the security thereof, and to all renewals,
modifications, consolidations, replacements and extensions thereof provided that
the Lender agrees in writing not to disturb Lessee's quiet possession of the
Premises so long as Lessee is not in default under the lease. Lessee agrees that
the Lenders holding any such Security Device shall have no duty, liability or
obligation to perform any of the obligations of Lessor under this Lease, but
that in the event of Lessor's default with respect to any such obligation,
Lessee will give any Lender whose name and address have been furnished Lessee in
writing for such purpose notice of Lessor's default and allow such Lender thirty
(30) days following receipt of such notice for the cure of said default before
invoking any remedies Lessee may have by reason thereof. If any Lender shall
elect to have this Lease and/or any Option granted hereby superior to the lien
of its Security Device and shall give written notice thereof to Lessee, this
Lease and such Options shall be deemed prior to such Security Device,
notwithstanding the relative dates of the documentation or recordation thereof.

      30.2  ATTORNMENT. Subject to the non-disturbance provisions of Paragraph
30.3, Lessee agrees to attorn to a Lender or any other party who acquires
ownership of the Premises by reason of a foreclosure of a Security Device, and
that in the event of such foreclosure, such new owner shall not: (i) be liable
for any act or omission of any prior lessor or with respect to events occurring
prior to acquisition of ownership, (ii) be subject to any offsets or defenses
which Lessee might have against any prior lessor, or (iii) be bound by
prepayment of more than one month's rent.

      30.3  NON-DISTURBANCE. With respect to Security Devices entered into by
Lessor after the execution of this Lease, Lessee's subordination of this Lease
shall be subject to receiving assurance (a "non-disturbance agreement") from the
Lender that Lessee's possession and this Lease, including any options to extend
the term hereof, will not be disturbed so long as Lessee is not in Breach hereof
and attorns to the record owner of the Premises.

31.   ATTORNEY'S FEES. If any Party or Broker brings an action or proceeding to
enforce the terms hereof or declare rights hereunder, the Prevailing Party (as
hereafter defined) or Broker in any such proceeding, action, or appeal thereon,
shall be entitled to reasonable attorney's fees. Such fees may be awarded in the
same suit or recovered in a separate suit, whether or not such action or
proceeding is pursued to decision or judgment. The term, "Prevailing Party"
shall include, without limitation, a Party or Broker who substantially obtains
or defeats the relief sought, as the case may be, whether by compromise,
settlement, judgment, or the abandonment by the other Party or Broker of its
claim or defense. The attorneys' fee award


                                      -30-
<PAGE>   31
shall not be computed in accordance with any court fee schedule, but shall be
such as to fully reimburse all attorney's fees reasonably incurred. Lessor shall
be entitled to attorney's fees, costs and expenses incurred in the preparation
and service of notices of Default and consultations in connection therewith,
whether or not a legal action is subsequently commenced in connection with such
Default or resulting Breach.

32.   LESSOR'S ACCESS; SHOWING PREMISES; REPAIRS. Lessor and Lessor's agents
shall have the right to enter the Premises at any time, in the case of an
emergency, and otherwise at reasonable times after 24 hours prior notice to
Lessee for the purpose of showing the same to prospective purchasers, lenders,
or lessees, and making such alterations, repairs, improvements or additions to
the Premises or to the building of which they are a part, as Lessor may
reasonably deem necessary. Lessor may at any time during the last one hundred
twenty (120) days of the term hereof place on or about the Premises any ordinary
"For Lease" signs. All such activities of Lessor shall be without abatement of
rent or liability to Lessee.

33.   AUCTIONS. Lessee shall not conduct, nor permit to be conducted, either
voluntarily or involuntarily, any auction upon the Premises without first having
obtained Lessor's prior written consent. Notwithstanding anything to the
contrary in this Lease, Lessor shall not be obligated to exercise any standard
of reasonableness in determining whether to grant such consent.

34.   SIGNS. Lessee shall not place any sign upon the Premises, except that
Lessee may, with Lessor's prior written consent, install (but not on the roof)
such signs as are reasonably required to advertise Lessee's own business. The
installation of any sign on the Premises by or for Lessee shall be subject to
the provisions of Paragraph 7 (Maintenance, Repairs, Utility Installations,
Trade Fixtures and Alterations). Unless otherwise expressly agreed herein,
Lessor reserves all rights to the use of the roof and the right to install, and
all revenues from the installation of, such advertising signs on the Premises,
including the roof, as do not unreasonably interfere with the conduct of
Lessee's business.

35.   TERMINATION; MERGER. Unless specifically stated otherwise in writing by
Lessor, the voluntary or other surrender of this Lease by Lessee, the mutual
termination or cancellation hereof, or a termination hereof by Lessor for Breach
by Lessee, shall automatically terminate any sublease or lesser estate in the
Premises; provided, however, Lessor shall, in the event of any such surrender,
termination or cancellation, have the option to continue any one or all of any
existing subtenancies. Lessor's failure within ten (10) days following any such
event to make a written election to the contrary by written notice to the holder
of any such lesser interest, shall constitute Lessor's election to have such
event constitute the termination of such interest.


                                      -31-
<PAGE>   32
36.   CONSENTS.

            (a)   Except for paragraph 33 hereof (Auctions) or as otherwise
provided herein, wherever in this Lease the consent of a Party is required to an
act by or for the other Party, such consent shall not be unreasonably withheld
or delayed. Lessor's actual reasonable costs and expenses (including but not
limited to architects', attorneys', engineers' or other consultants' fees)
incurred in the consideration of, or response to, a request by Lessee for any
Lessor consent pertaining to this Lease or the Premises, including but not
limited to consents to an assignment, a subletting or the presence or use of a
Hazardous Substance, practice or storage tank, shall be paid by Lessee to Lessor
upon receipt of an invoice and supporting documentation therefor. Subject to
Paragraph 12.2(e) (applicable to assignment or subletting), Lessor may, as a
condition to considering any such request by Lessee, require that Lessee deposit
with Lessor an amount of money (in addition to the Security Deposit held under
Paragraph 5) reasonably calculated by Lessor to represent the cost Lessor will
incur in considering and responding to Lessee's request. Except as otherwise
provided, any unused portion of said deposit shall be refunded to Lessee without
interest. Lessor's consent to any act, assignment of this Lease or subletting of
the Premises by Lessee shall not constitute an acknowledgement that no Default
or Breach by Lessee of this Lease exists, nor shall such consent be deemed a
waiver of any then existing Default or Breach, except as may be otherwise
specifically stated in writing by Lessor at the time of such consent.

            (b)   All conditions to Lessor's consent authorized by this Lease
are acknowledged by Lessee as being reasonable. The failure to specify herein
any particular condition to Lessor's consent shall not preclude the imposition
by Lessor at the time of consent of such further or other conditions as are then
reasonable with reference to the particular matter for which consent is being
given.

37.  

38.   QUIET POSSESSION. Upon payment by Lessee of the rent for the Premises and
the observance and performance of all of the covenants, conditions and
provisions on Lessee's part to be observed and performed under this Lease,
Lessee shall have quiet possession of the Premises for the entire term hereof
subject to all of the provisions of this Lease.

39.   OPTIONS. See Addendum 39.5

      39.1  DEFINITION. As used in this Paragraph 37 the word "Option" has the
following meaning: (a) the right to extend the term of this Lease or to renew
this Lease or to extend or renew any lease that Lessee has on other property of
Lessor; (b) the right of first refusal to lease the Premises or the right of
first offer to lease the Premises or the right of first refusal to lease other
property of Lessor or the right of first offer to lease other property of
Lessor' (c) the right to purchase the Premises, or the right of first offer to
purchase the Premises, or the right of first offer to purchase the


                                      -32-
<PAGE>   33
Premises, or the right to purchase other property of Lessor, or the right of
first refusal to purchase other property of Lessor, or the right of first offer
to purchase other property of Lessor.

      39.2  OPTIONS PERSONAL TO ORIGINAL LESSEE. Paragraph 1.1 hereof and cannot
be voluntarily or involuntarily assigned or exercised by any person or entity
other than said original Lessee while the original Lessee _______ in full and
actual possession of the Premises and without the intention of thereafter
assigning or subletting. The Options, if any, herein granted to Lessee ______
not assignable, either as a part of an assignment of this Lease or separately or
a part therefrom, and no Option may be separated from this Lease in any manner,
by reservation or otherwise.

      39.3  MULTIPLE OPTIONS. In the event that Lessee has any multiple Options
to extend or renew this Lease, a later option cannot be exercised unless the
prior Options to extend or renew this Lease have been validly exercised.

      39.4  EFFECT OF DEFAULT ON OPTIONS.

            (a)   Lessee shall have the right to exercise an Option,
notwithstanding any provision in the grant of Option to the contrary: (i) during
the period commencing with the giving of any notice of Default under Paragraph
13.1 and continuing until the Default is cured, or (ii) during the period of
___________ monetary obligation due Lessor from Lessee is unpaid (without regard
to whether notice thereof is given Lessee), or (iii) during the time Lessee
__________ Breach of this Lease, or (iv) in the event that Lessor has given to
Lessee three (3) or more notices of Default under Paragraph 13.1, whether or not
the Defaults are cured, during the twelve (12) month period immediately
preceding the exercise of the Option.

            (b)   The period of time within which an Option may be exercised
shall not be extended or enlarged by reason of Lessee's inability to exercise an
Option because of the provisions of Paragraph 39.4(a).

            (c)   All rights of Lessee under the provisions of an Option shall
terminate and be of no further force or effect, notwithstanding Lessee's due and
timely exercise of the Option, if, after such exercise and during the term of
this Lease, (i) Lessee fails to pay to Lessor a monetary obligation of Lessee
for a period of thirty (30) days after such obligation becomes due (without any
necessity of Lessor to give notice thereof to Lessee), or (ii) Lessor gives to
Lessee three or more notices of Default under Paragraph 13.1 during any twelve
month period, whether or not the Defaults are cured, or (iii) if Lessee commits
a Breach of this Lease.

40.   MULTIPLE BUILDINGS. If the Premises are part of a group of buildings
controlled by Lessor, Lessee agrees that it will abide by, keep and observe all
reasonable rules and regulations which Lessor may make from time to time for the
management, safety, care, and


                                      -33-
<PAGE>   34
cleanliness of the grounds, the parking and unloading of vehicles and the
preservation of good order, as well as for the convenience of other occupants or
tenants of such other buildings and their invitees, and that Lessee will pay its
fair share of common expenses incurred in connection therewith.

41.   SECURITY MEASURES. Lessee hereby acknowledges that the rental payable to
Lessor hereunder does not include the cost of guard service or other security
measures, and that Lessor shall have no obligation whatsoever to provide same.
Lessee assumes all responsibility for the protection of the Premises, Lessee,
its agents and invitees and their property from the acts of third parties.

42.   RESERVATIONS. Lessor reserves to itself the right, from time to time, to
rant, without the consent or joinder of Lessee, such easements, rights and
dedications that Lessor deems necessary, and to cause the recordation of parcel
maps and restrictions, so long as such easements, rights, dedications, maps and
restrictions do not unreasonably interfere with the use of the Premises by
Lessee. Lessee agrees to sign any documents reasonably requested by Lessor to
effectuate any such easement rights, dedication, map or restrictions.

43.   PERFORMANCE UNDER PROTEST. If at any time a dispute shall arise as to any
amount or sum of money to be paid by one party to the other under the provisions
hereof, the Party against whom the obligation to pay the money is asserted shall
have the right to make payment "under protest" and such payment shall not be
regarded as a voluntary payment and there shall survive the right on the part of
said Party to institute suit for recovery of such sum. If it shall be adjudged
that there was no legal obligation on the part of said Party to pay such sum or
any part thereof, said Party shall be entitled to recover such sum or so much
thereof as it was not legally required to pay under the provisions of this
Lease.

44.   AUTHORITY. If either Party hereof is a corporation, trust, or general or
limited partnership, each individual executing this Lease on behalf of such
entity represents and warrants that he or she is duly authorized to execute and
deliver this Lease on its behalf. If Lessee is a corporation, trust or
partnership, Lessee shall, within thirty (30) days after request by Lessor,
deliver to Lessor evidence satisfactory to Lessor of such authority.

45.   CONFLICT. Any conflict between the printed provisions of this Lease and
the typewritten or handwritten provisions (including the Addendum) shall be
controlled by the typewritten and handwritten provisions.

46.   OFFER. Preparation of this Lease by Lessor or Lessor's agent and
submission of same to Lessee shall not be deemed an offer to lease to Lessee.
This Lease is not intended to be binding until executed by all Parties hereto.

47.   AMENDMENTS. This Lease may be modified only in writing, signed by the
parties in interest at the time of the modification. The


                                      -34-
<PAGE>   35
parties shall amend this Lease from time to time to reflect any adjustments that
are made to the Base Rent or other rent payable under this Lease. As long as
they do not materially change Lessee's obligations hereunder, Lessee agrees to
make such reasonable non-monetary modifications to this Lease as may be
reasonably required by an institutional, insurance company, or pension plan
Lender in connection with the obtaining or normal financing or refinancing of
the property of which the Premises are a part.

48.   MULTIPLE PARTIES. Except as otherwise expressly provided herein, if more
than one person or entity is named herein as either Lessor or Lessee, the
obligations of such multiple parties shall be the joint and several
responsibility of all persons or entitles named herein as such Lessor or Lessee.

LESSOR AND LESSEE HAVE CAREFULLY READ AND REVIEWED THIS LEASE AND EACH TERM AND
PROVISION CONTAINED HEREIN AND BY THE EXECUTION OF THIS LEASE SHOW THEIR
INFORMED AND VOLUNTARY CONSENT THERETO. THE PARTIES HEREBY AGREE THAT, AT THE
TIME THIS LEASE IS EXECUTED, THE TERMS OF THIS LEASE ARE COMMERCIALLY REASONABLE
AND EFFECTUATE THE INTENT AND PURPOSE OF LESSOR AND LESSEE WITH RESPECT TO THE
PREMISES.

      IF THIS LEASE HAS BEEN FILLED IN, IT HAS BEEN PREPARED FOR SUBMISSION TO
      YOUR ATTORNEY FOR HIS APPROVAL. FURTHER, EXPERTS SHOULD BE CONSULTED TO
      EVALUATE THE CONDITION OF THE PROPERTY AS TO THE POSSIBLE PRESENCE OF
      ASBESTOS, STORAGE TANKS OR HAZARDOUS SUBSTANCES. NO REPRESENTATION OR
      RECOMMENDATION IS MADE BY THE AMERICAN INDUSTRIAL REAL ESTATE ASSOCIATION
      OR BY THE REAL ESTATE BROKER(S) OR THEIR AGENTS OR EMPLOYEES AS TO THE
      LEGAL SUFFICIENCY, LEGAL EFFECT, OR TAX CONSEQUENCES OF THIS LEASE OR THE
      TRANSACTION TO WHICH IT RELATES; THE PARTIES SHALL RELY SOLELY UPON THE
      ADVICE OF THEIR OWN COUNSEL AS TO THE LEGAL AND TAX CONSEQUENCES OF THIS
      LEASE. IF THE SUBJECT PROPERTY IS LOCATE IN A STATE OTHER THAN CALIFORNIA,
      AN


                                      -35-
<PAGE>   36
      ATTORNEY FROM THE STATE WHERE THE PROPERTY IS LOCATED SHOULD BE CONSULTED.

The parties hereto have executed this Lease at the place on the dates specified
above to their respective signatures.

Executed at Los Angeles, California
on July ___, 1994
by Lessor:

LMP PROPERTIES, LTD., a California
Limited Partnership

By: MESA PACIFICA, General
    Partner

    By: ____________________________
        One of its general partners


By: /s/ Norton N. Brown
    --------------------------------

Name Printed: Norton N. Brown

Title: General Partner

Address: 11930 San Vicente
         Blvd., Los Angeles, CA
         90040

Tel. No. 310-820-6666

Fax No.  310-826-2860


Executed at San Diego, California
on July __, 1994
by Lessee:

NANOGEN, INC., a California
Corporation


By: /s/ Howard C. Birndorf
    --------------------------------

Name Printed: Howard C. Birndorf

Title: CEO


By:_________________________________

Name Printed:_______________________

Title:______________________________

Address:____________________________
        ____________________________

Tel No. (_____)_____________________

Fax No. (_____)_____________________


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