Document:

Guaranty

 Exhibit 10.3 
 GUARANTY 
 This GUARANTY
(“Guaranty”) is executed as of January 12, 2011, by KILROY REALTY, L.P., a Delaware limited partnership (“Guarantor”), in favor of METROPOLITAN LIFE INSURANCE COMPANY, a New York corporation
(“Lender”), with reference to the following facts: 

A.      Lender has agreed to make a loan (the “Loan”) in the
principal amount of up to $135,000,000.00 to Kilroy Realty 303, LLC, a Delaware limited liability company (“Borrower”), to be evidenced by that certain Promissory Note of even date herewith (the
“Note”) to be executed by Borrower and payable to Lender. The Note is to be secured by, among other things, a Deed of Trust, Security Agreement and Fixture Filing of even date herewith to be executed by Borrower, as trustor,
in favor of Lender, as beneficiary which is to be recorded in the Official Records of San Francisco County, California (the “Deed of Trust”). The Deed of Trust will encumber a fee estate in certain real property located in
the City of San Francisco, County of San Francisco, State of California as described therein (the “Property”). 
 B.      It is a condition to Lender making the Loan to Borrower that Guarantor execute this Guaranty. 
 A G R E E M E N T 
 NOW, THEREFORE, in consideration of
the foregoing, and in order to induce Lender to make the Loan to Borrower, Guarantor hereby agrees, in favor of Lender, as follows: 
 1.      Definitions and Construction. 
 (a)      Definitions.  The following terms, as used in this Guaranty, shall have the following meanings: 

“Bankruptcy Code” means the Bankruptcy Reform Act of 1978 (11 U.S.C.), as amended or
supplemented from time to time, and any successor statute, and any and all rules issued or promulgated in connection therewith. 
 “Guaranteed Obligations” means any and all obligations, indebtedness, or liabilities of any kind or character owed by Borrower to Lender pursuant to Borrower’s recourse
obligations to Lender as set forth under Section 11 of the Note, as in effect on the date hereof or as modified with the consent of Guarantor, and Section 9.01 of the Deed of Trust, as in effect on the date hereof or as modified with the
consent of Guarantor, and all obligations and liabilities of Borrower to Lender pursuant to that certain Unsecured Indemnity Agreement of even date herewith (the “Indemnity Agreement”) executed by Borrower. 

“Loan Documents” shall have the same meaning as in the Deed of Trust. 

  
 303 Second
Street — Guaranty 

(b)      Construction.  Unless the context of this Guaranty clearly
requires otherwise, references to the plural include the singular, references to the singular include the plural, and the term “including” is not limiting. The words “hereof,” “herein,” “hereby,”
“hereunder,” and other similar terms refer to this Guaranty as a whole and not to any particular provision of this Guaranty. Any reference herein to any of the Loan Documents includes any and all alterations, amendments, extensions,
modifications, renewals, or supplements thereto or thereof, as applicable. Neither this Guaranty nor any uncertainty or ambiguity herein shall be construed or resolved against Lender or Guarantor, whether under any rule of construction or otherwise.
On the contrary, this Guaranty has been reviewed by Guarantor, Lender, and their respective counsel, and shall be construed and interpreted according to the ordinary meaning of the words used so as to fairly accomplish the purposes and intentions of
Lender and Guarantor. 
 2.      Guaranteed
Obligations.        Guarantor hereby irrevocably and unconditionally guarantees to Lender, as and for Guarantor’s own debt, until final and indefeasible payment thereof has been made, payment of the
Guaranteed Obligations, in each case when and as the same shall become due and payable, it being the intent of Guarantor that the guaranty set forth herein shall be a guaranty of payment and not a guaranty of collection. 

3.      Performance Under This Guaranty.  In the event that Borrower
fails to make any payment of any Guaranteed Obligations on or before the due date thereof, Guarantor immediately shall cause such payment to be made. 
 4.      Primary Obligations.  This Guaranty is a primary and original obligation of Guarantor, is not merely the creation of a surety relationship, and is an
absolute and unconditional guaranty of payment and performance which shall remain in full force and effect without respect to future changes in conditions, including any change of law or any invalidity or irregularity with respect to the issuance of
the Loan Documents. Each person and entity executing this Guaranty as Guarantor agrees that it is directly, jointly and severally with any and all other guarantors of the Guaranteed Obligations, liable to Lender, that the obligations of Guarantor
hereunder are independent of the obligations of Borrower or any other guarantor, and that a separate action may be brought against each person or entity signing as Guarantor whether such action is brought against Borrower or any other guarantor or
whether Borrower or any such other guarantor is joined in such action. Guarantor agrees that its liability hereunder shall be immediate and shall not be contingent upon the exercise or enforcement by Lender of whatever remedies it may have against
Borrower or any other guarantor, or the enforcement of any lien or realization upon any security Lender may at any time possess. Guarantor agrees that any release which may be given by Lender to Borrower or any other guarantor shall not release
Guarantor. Guarantor consents and agrees that Lender shall be under no obligation to marshal any assets of Borrower or any other guarantor in favor of Guarantor, or against or in payment of any or all of the Guaranteed Obligations. 

5.      Waivers. 

(a)      Guarantor absolutely, unconditionally, knowingly, and expressly waives: 

  
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303 Second Street — Guaranty 

 (i)      (A) Notice of acceptance hereof;
(B) notice of any loans or other financial accommodations made or extended under the Loan Documents or the creation or existence of any Guaranteed Obligations; (C) notice of the amount of the Guaranteed Obligations, subject, however, to
Guarantor’s right to make inquiry of Lender to ascertain the amount of the Guaranteed Obligations at any reasonable time; (D) notice of any adverse change in the financial condition of Borrower or of any other fact that might increase
Guarantor’s risk hereunder; (E) notice of presentment for payment, demand, protest, and notice thereof as to any promissory notes or other instruments among the Loan Documents; (F) notice of any event of default under the Loan
Documents; and (G) all other notices (except if such notice is specifically required to be given to Guarantor hereunder or under any Loan Document to which Guarantor is a party) and demands to which Guarantor might otherwise be entitled.

 (ii)      Guarantor’s right by statute (including, without limitation,
its rights under California Civil Code Sections 2845 or 2850) or otherwise to require Lender to institute suit against Borrower or to exhaust any rights and remedies which Lender has or may have against Borrower or any collateral for the Guaranteed
Obligations provided by Borrower, Guarantor or any third party. In this regard, Guarantor agrees that it is bound to the payment of all Guaranteed Obligations, whether now existing or hereafter accruing, as fully as if such Guaranteed Obligations
were directly owing to Lender by Guarantor. Guarantor further waives any defense arising by reason of any disability or other defense (other than the defense that the Guaranteed Obligations shall have been fully and finally performed and paid,
provided that such defense shall not be available to the extent that any payments made to Lender are set aside or restored as described in Section 8 herein) of Borrower or by reason of the cessation from any cause whatsoever of the liability of
Borrower in respect thereof. 
 (iii)      (A) Any rights to assert against
Lender any defense (legal or equitable), set-off, counterclaim, or claim which Guarantor may now or at any time hereafter have against Borrower or any other party liable to Lender; (B) any defense, set-off, counterclaim, or claim, of any kind
or nature, arising directly or indirectly from the present or future lack of perfection, sufficiency, validity, or enforceability of the Guaranteed Obligations or any security therefor; (C) any defense Guarantor has to performance hereunder,
and any right Guarantor has to be exonerated, provided by California Civil Code Sections 2819, 2822, or 2825, or otherwise, arising by reason of: the impairment or suspension of Lender’s rights or remedies against Borrower; the alteration by
Lender of the Guaranteed Obligations; any discharge of the Guaranteed Obligations by operation of law as a result of Lender’s intervention or omission; or the acceptance by Lender of anything in partial satisfaction of the Guaranteed
Obligations; and (D) the benefit of any statute of limitations affecting Guarantor’s liability hereunder or the enforcement thereof, and any act which shall defer or delay the operation of any statute of limitations applicable to the
Guaranteed Obligations shall similarly operate to defer or delay the operation of such statute of limitations applicable to Guarantor’s liability hereunder. 

(b)      Guarantor absolutely, unconditionally, knowingly, and expressly waives any
defense arising by reason of or deriving from (i) any claim or defense based upon an election of remedies by Lender including any defense based upon an election of remedies by Lender under the provisions of the California Code of Civil
Procedure Sections 580a, 580b, 580d, and 726 or any similar law of California or any other jurisdiction; or (ii) any election by 

  
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Lender under Bankruptcy Code Section 1111(b) to limit the amount of, or any collateral securing, its claim against Borrower. Pursuant to California Civil Code Section 2856: 

Guarantor waives all rights and defenses arising out of an election of remedies by the creditor, even though that
election of remedies, such as a nonjudicial foreclosure with respect to security for a guaranteed obligation, has destroyed Guarantor’s rights of subrogation and reimbursement against Borrower by the operation of California Code of Civil
Procedure Section 580(d) or otherwise. 
 Guarantor waives all rights and defenses that Guarantor may have
because some of the Guaranteed Obligations are secured by real property. This means, among other things: 

(1)      Lender may collect from Guarantor without first foreclosing on any real or
personal property collateral pledged by Borrower for the Guaranteed Obligations; and 

(2)      If Lender forecloses on any real property collateral pledged by Borrower for the
Guaranteed Obligations: (A) the amount of the debt may be reduced only by the price for which that collateral is sold at the foreclosure sale, even if the collateral is worth more than the sale price; and (B) Lender may collect from
Guarantor even if Lender, by foreclosing on the real property collateral pledged by Borrower for the Guaranteed Obligations, has destroyed any right Guarantor may have to collect from Borrower. 

This is an unconditional and irrevocable waiver of any rights and defenses Guarantor may have because Borrower’s
debt is secured by real property. These rights and defenses include, but are not limited to, any rights or defenses based upon California Code of Civil Procedure Sections 580a, 580b, 580d, or 726. 

If any of the Guaranteed Obligations at any time are secured by a mortgage or deed of trust upon real property, Lender
may elect, in its sole discretion, upon a default with respect to the Guaranteed Obligations, to foreclose such mortgage or deed of trust judicially or nonjudicially in any manner permitted by law, before or after enforcing the Loan Documents,
without diminishing or affecting the liability of Guarantor hereunder except to the extent the Guaranteed Obligations are repaid with the proceeds of such foreclosure. Guarantor understands that (a) by virtue of the operation of
California’s antideficiency law applicable to nonjudicial foreclosures, an election by Lender nonjudicially to foreclose such a mortgage or deed of trust probably would have the effect of impairing or destroying rights of subrogation,
reimbursement, contribution, or indemnity of Guarantor against Borrower or other guarantors or sureties, and (b) absent the waiver given by Guarantor, such an election would prevent Lender from enforcing the Loan Documents against Guarantor.
Understanding the foregoing, and understanding that Guarantor is hereby relinquishing a defense to the enforceability of the Loan Documents, Guarantor hereby waives any right to assert against Lender any defense to the enforcement of the Loan
Documents, whether denominated “estoppel” or otherwise, based on or arising from an election by Lender nonjudicially to foreclose any such mortgage or deed of trust. Guarantor understands that the effect of the foregoing waiver may be that
Guarantor may have liability hereunder for amounts with respect to which Guarantor may be left without rights of 

  
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subrogation, reimbursement, contribution, or indemnity against Borrower or other guarantors or sureties. Guarantor also agrees that the “fair market value” provisions of California Code
of Civil Procedure Section 580a shall have no applicability with respect to the determination of Guarantor’s liability under the Loan Documents. 
 (c)      Guarantor hereby absolutely, unconditionally, knowingly, and expressly waives: (i) any right of subrogation Guarantor has or may have as against Borrower with
respect to the Guaranteed Obligations; (ii) any right to proceed against Borrower or any other person or entity, now or hereafter, for contribution, indemnity, reimbursement, or any other suretyship rights and claims, whether direct or
indirect, liquidated or contingent, whether arising under express or implied contract or by operation of law, which Guarantor may now have or hereafter have as against Borrower with respect to the Guaranteed Obligations; and (iii) any right to
proceed or seek recourse against or with respect to any property or asset of Borrower. 

(d)      WITHOUT LIMITING THE GENERALITY OF ANY OTHER WAIVER OR OTHER PROVISION SET
FORTH IN THIS GUARANTY, GUARANTOR HEREBY ABSOLUTELY, KNOWINGLY, UNCONDITIONALLY, AND EXPRESSLY WAIVES, ANY AND ALL BENEFITS OR DEFENSES ARISING DIRECTLY OR INDIRECTLY UNDER ANY ONE OR MORE OF CALIFORNIA CIVIL CODE SECTIONS 2787 THROUGH 2855,
CALIFORNIA CODE OF CIVIL PROCEDURE SECTIONS 580a, 580b, 580c, 580d, AND 726, CHAPTER 2 OF TITLE 14 OF PART 4 OF DIVISION 3 OF THE CALIFORNIA CIVIL CODE, AND CALIFORNIA COMMERCIAL CODE SECTIONS 3116, 3118, 3119, 3419, 3605, 9610, 9611, 9615, 9617,
9624, 9625, 9626, AND 9627. 
 6.      Releases.  Guarantor
consents and agrees that, without notice to or by Guarantor and without affecting or impairing the obligations of Guarantor hereunder, Lender may, by action or inaction: 

(a)      compromise, settle, extend the duration or the time for the payment of, or
discharge the performance of, or may refuse to or otherwise not enforce this Guaranty, the other Loan Documents, or any part thereof, with respect to Borrower or any other person or entity; 

(b)      release Borrower or any other person or entity or grant other indulgences to
Borrower or any other person or entity in respect thereof; 
 (c)      amend or
modify in any manner and at any time (or from time to time) any of the Loan Documents; provided that no amendment or modification of Section 11 of the Note, Section 9.01 of the Deed of Trust or of the Indemnity Agreement shall amend or
modify the Guaranteed Obligations without the consent of Guarantor; or 

(d)      release or substitute any other guarantor, if any, of the Guaranteed Obligations,
or enforce, exchange, release, or waive any security for the Guaranteed Obligations or any other guaranty of the Guaranteed Obligations, or any portion thereof. 

7.      No Election.  Lender shall have all of the rights to seek
recourse against Guarantor to the fullest extent provided for herein, and no election by Lender to proceed in one 

  
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303 Second Street — Guaranty 

 
form of action or proceeding, or against any party, or on any obligation, shall constitute a waiver of Lender’s right to proceed in any other form of action or proceeding or against other
parties unless Lender has expressly waived such right in writing. Specifically, but without limiting the generality of the foregoing, no action or proceeding by Lender under any document or instrument evidencing the Guaranteed Obligations shall
serve to diminish the liability of Guarantor under this Guaranty except to the extent that Lender finally and unconditionally shall have realized indefeasible payment by such action or proceeding. 

8.      Indefeasible Payment.  The Guaranteed Obligations and the Secured
Indebtedness shall not be considered indefeasibly paid for purposes of this Guaranty unless and until all payments to Lender are no longer subject to any right on the part of any person or entity, including Borrower, Borrower as a debtor in
possession, or any trustee (whether appointed under the Bankruptcy Code or otherwise) of any of Borrower’s assets to invalidate or set aside such payments or to seek to recoup the amount of such payments or any portion thereof, or to declare
same to be fraudulent or preferential. Until such full and final performance and indefeasible payment of the Guaranteed Obligations whether by Guarantor or Borrower, Lender shall have no obligation whatsoever to transfer or assign its interest in
the Loan Documents to Guarantor. In the event that, for any reason, any portion of such payments to Lender is set aside or restored, whether voluntarily or involuntarily, after the making thereof, then the obligation intended to be satisfied thereby
shall be revived and continued in full force and effect as if said payment or payments had not been made, and Guarantor shall be liable for the full amount Lender is required to repay plus any and all reasonable costs and expenses (including
reasonable attorneys’ fees and expenses and reasonable attorneys’ fees and expenses incurred pursuant to proceedings arising under the Bankruptcy Code) paid by Lender in connection therewith. 

9.      Financial Condition of Borrower.  Guarantor represents and
warrants to Lender that Guarantor is currently informed of the financial condition of Borrower and of all other circumstances which a diligent inquiry would reveal and which bear upon the risk of nonpayment of the Guaranteed Obligations. Guarantor
further represents and warrants to Lender that Guarantor has read and understands the terms and conditions of the Loan Documents. Guarantor hereby covenants that Guarantor will continue to keep informed of Borrower’s financial condition, the
financial condition of other guarantors, if any, and of all other circumstances which bear upon the risk of nonpayment or nonperformance of the Guaranteed Obligations. 

10.      Subordination.  Guarantor hereby agrees that any and all present
and future indebtedness of Borrower owing to Guarantor is deferred, postponed in favor of and subordinated to the prior payment, in full, in cash, of the Guaranteed Obligations and the Secured Indebtedness. In this regard, no payment of any kind
whatsoever shall be made with respect to such indebtedness until the Guaranteed Obligations and the Secured Indebtedness have been indefeasibly paid in full. Until payment in full of the Guaranteed Obligations and the Secured Indebtedness, Guarantor
agrees not to accept any payment or satisfaction of any kind of indebtedness of Borrower to Guarantor and hereby assigns such indebtedness to Lender, including the right to file proof of claim and to vote thereon in connection with any proceeding
under the Bankruptcy Code, including the right to vote on any plan of reorganization. Further, if Guarantor shall comprise more than one person or entity, Guarantor agrees that until such payment in full of the Guaranteed Obligations and the Secured
Indebtedness, (a) no one of them 

  
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303 Second Street — Guaranty 

 
shall accept payment from the others by way of contribution on account of any payment made hereunder by such party to Lender, (b) no one of them will take any action to exercise or enforce
any rights to such contribution, and (c) if any of Guarantor should receive any payment, satisfaction or security for any indebtedness of Borrower to any of Guarantor or for any contribution by the others of Guarantor for payment made hereunder
by the recipient to Lender, the same shall be delivered to Lender in the form received, endorsed or assigned as may be appropriate for application on account of, or as security for, the Guaranteed Obligations and until so delivered, shall be held in
trust for Lender as security for the Guaranteed Obligations. 

11.      Payments; Application.  All payments to be made hereunder by
Guarantor shall be made in lawful money of the United States of America at the time of payment, shall be made in immediately available funds, and shall be made without deduction (whether for taxes or otherwise) or offset. All payments made by
Guarantor hereunder shall be applied as follows: first, to all reasonable costs and expenses (including reasonable attorneys’ fees and expenses and reasonable attorneys’ fees and expenses incurred pursuant to proceedings arising under the
Bankruptcy Code) incurred by Lender in enforcing this Guaranty or in collecting the Guaranteed Obligations; second, to all accrued and unpaid interest, premium, if any, and fees owing to Lender constituting Guaranteed Obligations; and third, to the
balance of the Guaranteed Obligations. 
 12.      Attorneys’ Fees and
Costs.  Guarantor agrees to pay, on demand, all reasonable attorneys’ fees (including reasonable attorneys’ fees incurred pursuant to proceedings arising under the Bankruptcy Code) and all other reasonable costs and expenses
which may be incurred by Lender in the enforcement of this Guaranty (including those brought relating to proceedings pursuant to 11 U.S.C.) or in any way arising out of, or consequential to the protection, assertion, or enforcement of the Guaranteed
Obligations (or any security therefor), whether or not suit is brought. 

13.      Notices.  All notices or demands by Guarantor or Lender to the
other relating to this Guaranty shall be in writing and either personally served or sent by registered or certified mail, postage prepaid, return receipt requested, or by recognized courier service which provides return receipts, and shall be deemed
delivered on the date of actual delivery or refusal to accept delivery as evidenced by the return receipt. Unless otherwise specified in a notice sent or delivered in accordance with the provisions of this section, such writing shall be sent as
follows: 
 If to Lender: 

Metropolitan Life Insurance Company, a New York corporation 
 10 Park Avenue 
 Morristown, New Jersey 07962 

Attention: Senior Vice President, Real Estate Investments 
 and: 
 Metropolitan Life Insurance Company 

425 Market Street 

  
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303 Second Street — Guaranty 

 Suite 1050 
 San Francisco, California 94105 
 Attention: Vice President 

If to Guarantor: 
 Kilroy Realty, L.P. 
 12200 W. Olympic Boulevard, Suite 200 

Los Angeles, California 90064 
 Attention: Executive Vice President and Chief Financial Officer 
 With a copy to:

 Latham & Watkins LLP 
 355 South Grand Avenue 
 Los Angeles, CA 90071-1560 

Attention: Glen B. Collyer 
 14.      Cumulative Remedies.  No remedy under this Guaranty or under any Loan Document is intended to be exclusive of any other remedy, but each and every
remedy shall be cumulative and in addition to any and every other remedy given hereunder or under any Loan Document, and those provided by law or in equity. No delay or omission by Lender to exercise any right under this Guaranty shall impair any
such right nor be construed to be a waiver thereof. No failure on the part of Lender to exercise, and no delay in exercising, any right hereunder shall operate as a waiver thereof; nor shall any single or partial exercise of any right hereunder
preclude any other or further exercise thereof or the exercise of any other right. 

15.      Severability of Provisions.  If any provision of this Guaranty
is for any reason held to be invalid, illegal or unenforceable in any respect, that provision shall not affect the validity, legality or enforceability of any other provision of this Guaranty. 

16.      Entire Agreement; Amendments.  This Guaranty constitutes the
entire agreement between Guarantor and Lender pertaining to the subject matter contained herein. This Guaranty may not be altered, amended, or modified, nor may any provision hereof be waived or noncompliance therewith consented to, except by means
of a writing executed by both Guarantor and Lender. Any such alteration, amendment, modification, waiver, or consent shall be effective only to the extent specified therein and for the specific purpose for which given. No course of dealing and no
delay or waiver of any right or default under this Guaranty shall be deemed a waiver of any other, similar or dissimilar right or default or otherwise prejudice the rights and remedies hereunder. 

17.      Successors and Assigns.  The death of Guarantor shall not
terminate this Guaranty. This Guaranty shall be binding upon Guarantor’s heirs, executors, administrators, representatives, successors, and assigns and shall inure to the benefit of the successors and assigns of Lender; provided, however,
Guarantor shall not assign this Guaranty or delegate any 

  
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303 Second Street — Guaranty 

 
of its duties hereunder without Lender’s prior written consent. Any assignment without the consent of Lender shall be absolutely void. In the event of any assignment or other transfer of
rights by Lender, the rights and benefits herein conferred upon Lender shall automatically extend to and be vested in such assignee or other transferee. 
 18.      Choice of Law and Venue.  The validity of this Guaranty, its construction, interpretation, and enforcement, and the rights of Guarantor and Lender,
shall be determined under, governed by, and construed in accordance with the internal laws of the State of California, without regard to principles of conflicts of law. To the maximum extent permitted by law, Guarantor hereby agrees that all actions
or proceedings arising in connection with this Guaranty shall be tried and determined only in the state and federal courts located in the County of San Francisco, State of California, or, at the sole option of Lender, in any other court in which
Lender shall initiate legal or equitable proceedings and which has subject matter jurisdiction over the matter in controversy. To the maximum extent permitted by law, Guarantor hereby expressly waives any right it may have to assert the doctrine of
forum non conveniens or to object to venue to the extent any proceeding is brought in accordance with this Section. 
 19.      WAIVER OF JURY TRIAL.  TO THE MAXIMUM EXTENT PERMITTED BY LAW, GUARANTOR HEREBY ABSOLUTELY, KNOWINGLY, UNCONDITIONALLY, AND EXPRESSLY WAIVES ANY
RIGHT TO TRIAL BY JURY OF ANY ACTION, CAUSE OF ACTION, CLAIM, DEMAND, OR PROCEEDING ARISING UNDER OR WITH RESPECT TO THIS GUARANTY, OR IN ANY WAY CONNECTED WITH, RELATED TO, OR INCIDENTAL TO THE DEALINGS OF GUARANTOR AND LENDER WITH RESPECT TO THIS
GUARANTY, OR THE TRANSACTIONS RELATED HERETO, IN EACH CASE WHETHER NOW EXISTING OR HEREAFTER ARISING, AND WHETHER SOUNDING IN CONTRACT, TORT, OR OTHERWISE. TO THE MAXIMUM EXTENT PERMITTED BY LAW, GUARANTOR HEREBY AGREES THAT ANY SUCH ACTION, CAUSE
OF ACTION, CLAIM, DEMAND, OR PROCEEDING SHALL BE DECIDED BY A COURT TRIAL WITHOUT A JURY AND THAT LENDER MAY FILE AN ORIGINAL COUNTERPART OF THIS SECTION WITH ANY COURT OR OTHER TRIBUNAL AS WRITTEN EVIDENCE OF THE CONSENT OF GUARANTOR TO THE WAIVER
OF ITS RIGHT TO TRIAL BY JURY. 
 20.      Understandings With Respect to
Waivers and Consents.  Guarantor warrants and agrees that each of the waivers and consents set forth are made after consultation with legal counsel and with full knowledge of their significance and consequences, with the understanding
that events giving rise to a defense or right may diminish, destroy, or otherwise adversely affect rights which Guarantor otherwise may have against the Borrower, or against any collateral, and that, under the circumstances the waivers and consents
herein given are reasonable and not contrary to public policy or law. If any of the waivers or consents are determined to be unenforceable under applicable law, such waivers and consents shall be effective to the maximum extent permitted by law.

 21.      Counterparts.  This Guaranty may be executed in one
or more counterparts by some or all of the parties hereto, each of which counterparts shall be an original and all of which together shall constitute a single agreement of Guaranty. The failure of any party to

  
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303 Second Street — Guaranty 

 
execute this Guaranty, or any counterpart hereof, shall not relieve the other signatories from their obligations hereunder. 

[SIGNATURE FOLLOWS ON NEXT PAGE] 

  
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303 Second Street — Guaranty 

 IN WITNESS WHEREOF, Guarantor has executed and delivered this Guaranty as of the date set
forth in the first paragraph hereof. 
  

									
		 		 	 KILROY REALTY, L.P.,

		 		 	 a Delaware limited partnership

			
		 		 	         By: Kilroy Realty
Corporation,
         a Maryland
Corporation,

		 		 	         Its General Partner

				
		 		 		 	      By:  /s/ Michelle
Ngo                    
		 		 		 	      Name: Michelle Ngo
		 		 		 	      Title: Vice President and Treasurer
				
		 		 		 	      By:   /s/ Tamara J.
Porter              
		 		 		 	      Name: Tamara J. Porter
		 		 		 	      Title: Vice President and Corporate Counsel

Signature Page 

  
 303 Second
Street — GuarantyUnsecured Indemnity Agreement

 Exhibit 10.4 
 UNSECURED INDEMNITY AGREEMENT 
 DEFINED TERMS 

 

	
	 Execution Date: January 12, 2011

 

	 Loan: A first mortgage loan in an amount of $135,000,000.00 from Lender to Borrower
  

	 Borrower & Address:
  
 KILROY REALTY 303, LLC,
 a Delaware limited liability company

12200 West Olympic Boulevard, Suite 200
 Los
Angeles, California 90064
 Attention: Corporate Finance
  

With a copy to:
  
 Latham & Watkins LLP
 355 South Grand Avenue

Los Angeles, CA 90071-1560
 Attention: Glen B.
Collyer
  

	 Lender & Address:
  
 Metropolitan Life Insurance Company,
 a New York corporation

10 Park Avenue
 Morristown, New Jersey
07962
 Attention: Senior Vice President, Real Estate Investments

 
 and:

 
 Metropolitan Life Insurance Company

425 Market Street
 Suite 1050

San Francisco, California 94105
 Attn: Vice
President
  

	 Note: A Promissory Note executed by Borrower in favor of Lender in the amount of the Loan dated as of the Execution Date.

 

	 Deed of Trust: A Deed of Trust, Security Agreement and Fixture Filing dated as of the Execution Date executed by Borrower, to Chicago Title Insurance Company as Trustee, for the benefit of Lender
securing repayment of the Note to be recorded in the records of the County in which the Property is located.
  

  
 303 Second
Street – Unsecured Indemnity 

 THIS UNSECURED INDEMNITY AGREEMENT (the
“Agreement”) is entered into as of the Execution Date by Borrower, who also may be referred to in this Agreement as “Indemnitor”, in favor of Lender, with reference to the following facts: 

A.      Lender has loaned or will loan to Borrower the Loan. Payment of the Note is secured
by the Deed of Trust. The Deed of Trust encumbers the real property more particularly described in Exhibit A to this Agreement and other property referred to in the Deed of Trust and this Agreement as the “Property.”

 B.      As a condition to making the Loan, Lender requires Indemnitor to
indemnify and hold Indemnitee (as defined in Section 2 of this Agreement) harmless from any Environmental Claim (as defined in Section 2 of this Agreement). Indemnitor acknowledges and understands that this Agreement is a material
inducement for Lender’s agreement to make the Loan. 
 NOW THEREFORE, in consideration of the premises and
for other consideration, Indemnitor agrees as follows: 
 1.       Defined
Terms. Capitalized terms which are not defined in this Agreement shall have the meanings set forth in the Deed of Trust. 
 2.       Definitions. For purposes of this Agreement, the following terms shall have the following meanings: 

(a)       “Environmental Claim” shall mean any claim, demand, action,
suit, loss, cost, damage, fine, penalty, expense, liability, judgment, proceeding, or inquiry made in writing that seeks to impose costs or liabilities, including any consequential damages, directly or indirectly related to the Property, and arising
in whole or part as a result of 
 (i) pollution or contamination of the air, surface water, ground water, or
land; 
 (ii) solid, gaseous, or liquid hazardous waste generation, handling, treatment, storage, disposal, or
transportation; 
 (iii) the presence or alleged release of Hazardous Materials on or under the Property, the
soil, groundwater, or soil vapor on or under the Property, or the migration or alleged spreading of Hazardous Materials from the Property, whether or not known to Indemnitor, regardless of the source of such presence or release or, except as
expressly provided in this Agreement, regardless of when such release or presence occurred; 
 (iv) the
manufacture, processing, distribution in commerce, use, or storage of Hazardous Materials; 
 (v) injury to or
death of any person or persons arising from or in connection with Hazardous Materials; 
 (vi) destruction or
contamination of any property connected with Hazardous Materials; 

  
 2 

303 Second Street — Unsecured Indemnity 

     (vii)    the removal of
Hazardous Materials from the Property or the taking of necessary precautions to protect against the release of Hazardous Materials from or onto the Property including the air, ground water or surface water; 

    (viii)       any asserted breach or violation of any Requirements
of Environmental Law; 
     (ix)       any restriction on
use, ownership or transferability as a result of Hazardous Materials; 
     (x)
    remedial, response, abatement, cleanup, investigative, and monitoring work in connection with any Hazardous Materials (collectively, the “Remedial Work”); and 

    (xi)     the maintenance of a private or public nuisance or the conducting
of an abnormally dangerous activity on or near the Property, in each case arising from or in connection with Hazardous Materials. 
 (b)       “Environmental Permit” means any permit, license, approval, or other authorization with respect to any activities, operations, or businesses
conducted on the Property under any applicable law, regulation, or other requirement of the United States or any state, municipality, or other subdivision or jurisdiction related to pollution, protection of health or the environment, emissions,
discharges, or releases or threatened releases of Hazardous Materials into ambient air, surface water, ground water, or land, or otherwise relating to the manufacture, processing, distribution, use, generation, treatment, storage, disposal,
transportation, or handling of Hazardous Materials directly or indirectly related to the Property. 
 (c)
      The term “Hazardous Materials” shall include without limitation: 
     (i)       Those substances included within the definitions of “hazardous substances,” “hazardous materials,” “toxic
substances,” or “solid waste” in the Comprehensive Environmental Response Compensation and Liability Act of 1980 (42 U.S.C. § 9601 et seq.) (“CERCLA”), as amended by Superfund Amendments and Reauthorization Act of 1986
(Pub. L. 99 499 100 Stat. 1613) (“SARA”), the Resource Conservation and Recovery Act of 1976 (42 U.S.C. § 6901 et seq.) (“RCRA”), and the Hazardous Materials Transportation Act, 49 U.S.C. § 1801 et seq., and in the
regulations promulgated pursuant to said laws, all as amended; 
     (ii)
      Those substances listed in the United States Department of Transportation Table (49 CFR 172.101 and amendments thereto) or by the Environmental Protection Agency (or any successor agency) as hazardous substances
(40 CFR Part 302 and amendments thereto); 
     (iii)
      Any material, waste or substance which is (A) petroleum, (B) asbestos, (C) polychlorinated biphenyls, (D) designated as a “hazardous substance” pursuant to Section 311 of the
Clean Water Act, 33 U.S.C. § 1251 et seq. (33 U.S.C. § 1321) or listed pursuant to Section 307 of the Clean Water Act (33 U.S.C. § 1317); (E) a chemical substance or mixture regulated under the Toxic Substances Control Act
of 1976, 15 U.S.C. §§ 2601 et seq., (F) flammable explosives; or (G) radioactive materials; 

  
 3 

303 Second Street — Unsecured Indemnity 

     (iv)     Any material, waste or
substance which is included within any of the following: 
     (1)
      any of the definitions of “acutely hazardous waste,” “extremely hazardous waste,” “hazardous waste,” “infectious waste,” “retrograde material,” “volatile
organic compound” or “waste” pursuant to Cal. Health & Safety Code § 25110 et seq.; 
     (2)       any chemical known to the state of California to cause cancer or reproductive toxicity as published pursuant to the Safe Drinking Water and
Toxic Enforcement Act of 1986, Cal. Health & Safety Code § 25249.5 et seq.; 

    (3)       the definition of “hazardous substance”
pursuant to Cal. Health & Safety Code § 25281; 
     (4)
      the definition of “hazardous substance” as used in the Carpenter Presley Tanner Hazardous Substance Account Act, Cal. Health & Safety Code, § 25300 et seq.; 

    (5)       either of the definitions of “hazardous
materials” or “hazardous substances” pursuant to Cal. Health & Safety Code § 25501; 
     (6)       the definition of “hazardous material” pursuant to Cal. Health & Safety Code § 25411; 

    (7)       the definition of “asbestos” pursuant to Cal.
Health & Safety Code § 25918; 
     (8)
      either of the definitions of “air contaminant” or “air pollutant” as used in, Cal. Health & Safety Code § 39000 et seq.; 

    (9)       “waste” or “hazardous substance”
pursuant to Cal. Water Code § 13050; and 
     (10)
      mold under such conditions or circumstances as would require abatement to render or maintain the Property in condition fit for use as a first class office complex with ancillary retail and parking; and 

    (v)       Such other substances, materials and wastes which are or
become regulated as hazardous or toxic under applicable local, state or federal law, or the United States government, or which are classified as hazardous or toxic under federal, state, or local laws or regulations. 

(d)       “Indemnitee” means (individually and collectively) Lender, its
successors and assigns and affiliates and their respective officers, directors, shareholders and employees. 

(e)       “Requirements of Environmental Law” means all requirements of
environmental, ecological, health, or industrial hygiene laws or regulations or rules of common law related to the Property, including, without limitation, all requirements imposed by any 

  
 4 

303 Second Street — Unsecured Indemnity 

 
Environmental Permit, law, rule, order, or regulation of any federal, state, or local executive, legislative, judicial, regulatory, or administrative agency, in each case which relate to the
Property and to (i) exposure to Hazardous Materials; (ii) pollution or protection of the air, surface water, ground water, land; (iii) solid, gaseous, or liquid waste generation, treatment, storage, disposal, or transportation; or
(iv) regulation of the manufacture, processing, distribution and commerce, use, or storage of Hazardous Materials. 
 3.      Indemnitor’s Representations and Warranties to Indemnitee. Indemnitor represents as of the Execution Date that: 

(a)       To Indemnitor’s knowledge after reasonable inquiry, neither any portion of
the Property nor Indemnitor is in violation of or subject to any existing, pending, or threatened investigation by any governmental authority under any Requirements of Environmental Law (provided that for purposes of this provision, the common law
elements of Requirements of Environmental Law are limited to the law of trespass, nuisance and negligence). 

(b)       Except for permits and licenses which have been obtained and are in full force
and effect, Indemnitor has not and is not required by any Requirements of Environmental Law to obtain any permits or licenses to construct or use any portion of the Improvements, fixtures, or equipment on the Property. 

(c)       Indemnitor’s use of the Property has not resulted in the disposal or
release of any Hazardous Materials on or to any portion of the Property in violation of any Requirements of Environmental Law (provided that for purposes of this provision, the common law elements of Requirements of Environmental Law are limited to
the law of trespass, nuisance and negligence). 
 4.
      Indemnification. 
 (a)
      Indemnitors shall protect, defend, indemnify, and hold harmless Indemnitee from and against all Environmental Claims, subject to the exception set forth below. 

(b)       In the event that any Remedial Work is required under any Requirements of
Environmental Law because of, or in connection with, an Environmental Claim, Indemnitor shall within thirty (30) days after written demand by Indemnitee (or such shorter period of time as may be required under Requirements of Environmental
Law), commence to perform, or cause to be commenced, and thereafter diligently prosecute to completion, all Remedial Work. All Remedial Work shall be performed by one or more contractors, approved in advance in writing by Indemnitee (such approval
not to be unreasonably withheld or delayed), and under the supervision of a consulting engineer approved in advance in writing by Indemnitee (such approval not to be unreasonably withheld or delayed). All reasonable out-of-pocket costs and expenses
incurred by Indemnitee in connection with the Remedial Work shall be an Environmental Claim and shall be paid by Indemnitor. In the event Indemnitor does not timely commence, or cause to be commenced, or fail to diligently prosecute to completion,
the Remedial Work, Indemnitee may, but shall not be required to, cause such Remedial Work to be performed and all reasonable costs and expenses incurred in connection the Remedial Work shall be an Environmental Claim under this Agreement.

  
 5 

303 Second Street — Unsecured Indemnity 

 (c)      Indemnitor shall not be liable under
this Agreement to the extent of that portion of the costs and liabilities of any Environmental Claim that shall be attributable to an act of any Indemnitee which proximately causes (i) the introduction and initial release of a Hazardous
Material at the Property, or (ii) material aggravation of a then existing Hazardous Material condition at the Property. In addition, if Indemnitee acquires ownership of the Property through a foreclosure, trustee’s sale or deed in lieu of
foreclosure, Indemnitor shall not be liable under this Agreement for that portion of costs and liabilities of an Environmental Claim which is attributable to the introduction and initial release of a Hazardous Material at the Property by any party,
other than Indemnitor, at any time after Indemnitee or any purchaser has acquired title to the Property. In all other circumstances, the liability of Indemnitor under this Agreement shall remain in full force and effect after Indemnitee or any
purchaser acquires title to the Property, including without limitation with respect to any Hazardous Materials which are discovered at the Property after the date Indemnitee or any purchaser acquires title but which were actually introduced to the
Property prior to the date of such acquisition, and with respect to any continuing migration or release of any Hazardous Materials which commenced prior to the date that Indemnitee or any purchaser acquires title. Indemnitor shall have the burden of
proof as to any facts necessary to an limitation of liability under this paragraph (c). 

5.      Notice of Actions. 

(a)      Indemnitor shall give prompt written notice to Indemnitee of (i) any
proceeding, inquiry or notice by or from any governmental authority regarding Hazardous Materials, an Environmental Claim or a Requirement of Environmental Law; (ii) all Environmental Claims of which Indemnitor has received written notice;
(iii) Indemnitor’s discovery of any occurrence or condition on any real property adjoining or in the vicinity of the Property that could likely cause the Property or any part thereof to be in violation of a Requirement of Environmental Law
(provided that for purposes of this clause, the common law elements of Requirements of Environmental Law are limited to the law of trespass, nuisance and negligence) or subject to an Environmental Claim; (iv) Indemnitor’s receipt of any
written notice or discovery of any information regarding the presence or existence of any Hazardous Material on, under, or about the Property (and except for materials customarily used or stored in connection with the use or operation of the
Property, which materials at the Property exist only in reasonable quantities and are stored, contained, transported, used, released, and disposed of reasonably and without violation of any Requirements of Environmental Law), or any alleged breach
or violation of any Requirements of Environmental Law pertaining to Indemnitor or the Property. 

(b)      Indemnitor shall deliver to Indemnitee copies of all Environmental Claims, and at
the request of the Indemnitee, any orders, notices, permits, applications, reports, and other documents pertaining to the subject matter of the Environmental Claim. 

6.      Procedures Relating to Indemnification. 

(a)      Except as provided otherwise herein, Indemnitor shall at its own cost and expense
(i) defend all Environmental Claims that may be brought or instituted against any Indemnitee; (ii) pay any judgment or decree that may be recorded against any Indemnitee in connection with any Environmental Claim; and (iii) reimburse
Indemnitee for the cost of, or for 

  
 6 

303 Second Street — Unsecured Indemnity 

 
any payment made by any of them, with respect to any reasonable out-of-pocket expenses incurred in connection with any Environmental Claims against any Indemnitee arising out of the obligations
of Indemnitor under this Agreement. 
 (b)      Counsel selected by Indemnitor
pursuant to Paragraph 6 (a) shall be subject to the approval of the Indemnitee asserting a claim under this Agreement, which approval shall not be unreasonably withheld or delayed; provided, however, that any Indemnitee may elect to defend any
Environmental Claim at the cost and expense of Indemnitor, if, in the reasonable judgment of the Indemnitee (i) the defense is not being conducted in a satisfactory manner, or (ii) there is a conflict of interest between the Indemnitee and
any other party represented by counsel selected by Indemnitor. 

(c)      Notwithstanding anything in this Agreement to the contrary, Indemnitor shall not,
without the prior written consent of Indemnitee (which consent shall not be unreasonably withheld or delayed), (i) settle or compromise any Environmental Claim or consent to the entry of any judgment that does not include the delivery by the
claimant or plaintiff to Indemnitee of a written release of Indemnitee (in form, scope and substance satisfactory to Indemnitee in its reasonable discretion) from all liability in respect of the Environmental Claim; or (ii) settle or compromise
any Environmental Claim in any manner that may materially and adversely affect Indemnitee as determined by Indemnitee in the good faith exercise of its discretion. 

(d)      Indemnitee shall have the right to join and participate in, as a party if it so
elects, any legal proceedings or actions in connection with the Property involving any Environmental Claim. In any circumstance in which this indemnity applies, Indemnitee may employ its own legal counsel and consultants to prosecute, negotiate, or
defend any claim, action, or cause of action, and Indemnitee shall have the right to compromise or settle the same in the exercise of its good faith discretion, subject to the reasonable approval of Indemnitor, which approval will not be
unreasonably withheld or delayed. Indemnitor shall reimburse Indemnitee upon demand for all costs and expenses incurred by Indemnitee, including the amount of all costs of settlements entered into in accordance with the foregoing, and the reasonable
fees and other costs and expenses of its attorneys and consultants, including without limitation those incurred in connection with monitoring and participating in any action or proceeding. Indemnitor shall not be obligated to pay for simultaneous
representation of any Indemnitee for the same claim by two sets of counsel under Paragraphs 6(b) and this Paragraph 6(d), provided that in any such case of simultaneous representation the Indemnitee shall have the right to select which counsel to
terminate and which to continue. 
 7.      Independent Nature of
Agreement.  This Agreement is an independent obligation of Indemnitor and is not intended to nor shall it secure payment of the Note or amounts due to Lender under the Deed of Trust. The obligations of Indemnitors under this
Agreement are not secured by the Deed of Trust or any of the Loan Documents. 

8.      Survival of Agreement.  This Agreement, and all rights and
obligations under this Agreement, shall survive (i) performance and repayment of the Loan, (ii) reconveyance of the Deed of Trust, and release of other security provided in connection with the Loan, and (iii) bankruptcy sale,
trustee’s sale or foreclosure under the Deed of Trust and/or any of the other 

  
 7 

303 Second Street — Unsecured Indemnity 

 
Loan Documents (whether by deed or other assignment in lieu of foreclosure), and (iv) transfer of all of Lender’s rights in the Loan, the Loan Documents, and the Property. 

9.      Rights of Contribution.  Nothing contained in this
Agreement shall prevent or in any way diminish or interfere with any rights and remedies, including without limitation, the right to contribution, which Indemnitee may have against Indemnitor or any other party under the Federal Comprehensive
Environmental Response, Compensation and Liability Act of 1980 (codified at Title 42 U.S.C. Sections 9601 et seq.), as it may be amended from time to time, or any other applicable Federal or state laws. 

10.      Binding Effect.  This Agreement shall be binding upon and
benefit Indemnitor and Indemnitee and their respective heirs, personal representatives, successors and assigns. Any holder of the Note and any affiliate of Indemnitee which acquires all or part of the Property by any sale, assignment or foreclosure
under the Deed of Trust or by deed or other assignment in lieu of foreclosure shall be a successor of this Agreement. In no event shall any Indemnitee be bound by any obligations or liabilities of any Indemnitor even if any such Indemnitee acquires
ownership of all or any part of the Property. 
 11.      Liability of
Indemnitors.  If more than one person or entity executes this Agreement as Indemnitor, then the obligations of the respective Indemnitors under this Agreement shall be the joint and several obligations of each of them. Except as
otherwise provided herein, the liability of Indemnitors under this Agreement shall not be limited or impaired by (i) any amendment or modification of the provisions of the Loan Documents to or with Lender by Indemnitor or any person who
succeeds Indemnitor as owner of the Property; (ii) any extensions of time for performance required by any of the Loan Documents; (iii) any sale, assignment, or foreclosure of the Note or Deed of Trust or any sale or transfer of all or part
of the Property; (iv) any exculpatory provision in any of the Loan Documents limiting Lender’s recourse to property encumbered by the Deed of Trust or to any other security, or limiting Lender’s rights to a deficiency judgment against
Indemnitor (including, without limitation, Section 11 of the Note and Article IX of the Deed of Trust); (v) the release of Indemnitor or any other person or entity from performance or observance of any of the Loan Documents by operation of
law, Indemnitee’s voluntary act, or otherwise; or (vi) the release or substitution in whole or in part of any security for the Note. 
 12.      Waiver.  Indemnitor waives any right or claim of right to cause a marshalling of the assets of Indemnitors or to cause Indemnitee to proceed
against any of the security for the Loan before proceeding under this Agreement against Indemnitors or to proceed against Indemnitor in any particular order. Indemnitor agrees that any payments required to be made under this Agreement shall become
due on demand. Indemnitor expressly waives and relinquishes all rights and remedies accorded by applicable law to indemnitors or guarantors. The indemnity provided for under this Agreement shall not be contingent upon the existence of any such
rights of subrogation nor subject to any claims or defenses that may be asserted in connection with the enforcement or attempted enforcement of any subrogation rights, including, without limitation, any claim that the subrogation rights were
abrogated by any acts of Indemnitee. Indemnitor agrees to postpone the exercise of any rights of subrogation to the rights of Indemnitee against Indemnitors under this Agreement until the Loan shall have been paid in full. 

  
 8 

303 Second Street — Unsecured Indemnity 

 13.      Delay.  No
delay on the part of any Indemnitee in exercising any right, power, or privilege under this Agreement or any of the Loan Documents shall operate as a waiver of any such privilege, power, or right. 

14.      Execution.  This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original. 

15.      Notices.  All notices, consents, approvals, elections and
other communications (collectively “Notices”) under this Agreement shall be in writing and shall be deemed to have been duly given if mailed by United States registered or certified mail, with return receipt requested, postage
prepaid, or by United States Express Mail or reputable overnight courier service to the parties at the addresses set forth in the Defined Terms (or at such other addresses as shall be given in writing by any party to the others pursuant to this
Section) and shall be deemed complete upon receipt or refusal to accept delivery as indicated in the return receipt or in the receipt of such Express Mail or courier service. 

16.      Attorneys’ Fees.  In the event that any Indemnitor or
any Indemnitee brings any suit or other proceeding with respect to the subject matter or enforcement of this Agreement, including without limitation, in appellate proceedings or in any action or participation in, or in connection with, any case or
proceeding under Chapter 7, 11 or 13 of the Bankruptcy Code, 11 United States Code Sections 101 et seq., or any successor statutes, the prevailing party (as determined by the court, agency or other authority before which
such suit or proceeding is commenced) shall, in addition to such other relief as may be awarded, be entitled to recover reasonable attorneys’ fees, out-of-pocket expenses and costs of investigation. 

17.      Successive Actions.  Separate and successive actions may
be brought under this Agreement to enforce any provision at any time and from time to time. No action under this Agreement shall preclude any subsequent action, and Indemnitor waives and covenants not to assert any defense in the nature of splitting
of causes of action or merger of judgments. 
 18.      Partial
Invalidity.  If any provision of this Agreement shall be determined to be unenforceable in any circumstances by a court of competent jurisdiction, then the balance of this Agreement shall be enforceable, and the subject provision
shall be enforceable to the extent permitted. 
 19.      Interest on Unpaid
Amounts.  All amounts required to be paid or reimbursed to any Indemnitee under this Agreement shall bear interest from the date of expenditure by the Indemnitee until paid. The interest rate shall be the same as is then applicable
under the Note. 
 20.      Governing Law.  This Agreement
and the rights and obligations of the parties under this Agreement shall in all respects be governed by, and construed and enforced in accordance with, the laws of the State in which the Property is located. 

[SIGNATURE FOLLOWS ON NEXT PAGE] 

  
 9 

303 Second Street — Unsecured Indemnity 

 IN WITNESS WHEREOF, Indemnitor has executed this Unsecured Indemnity Agreement as of the
Execution Date. 
  

									
		 	KILROY REALTY 303, LLC,
		 	a Delaware limited liability company
				
		 		 	By:	 	Kilroy Realty, L.P.,
		 		 		 	a Delaware limited partnership
		 		 		 	Its Sole Member
					
		 		 		 	By:	 	Kilroy Realty Corporation,
		 		 		 		 	a Maryland Corporation
		 		 		 		 	Its General Partner
					
		 		 		 		 	      By:  /s/ Michelle
Ngo                    
		 		 		 		 	      Name: Michelle Ngo
		 		 		 		 	      Title: Vice President and Treasurer
					
		 		 		 		 	      By:   /s/ Tamara J.
Porter              
		 		 		 		 	      Name: Tamara J. Porter
		 		 		 		 	      Title: Vice President and Corporate Counsel

 Signature Page 

  
 303 Second
Street — Unsecured Indemnity 

 EXHIBIT A TO INDEMNITY AGREEMENT 

PROPERTY DESCRIPTION 
 THE LAND REFERRED TO HEREIN BELOW IS SITUATED IN THE CITY OF SAN FRANCISCO, COUNTY OF SAN FRANCISCO, STATE OF CALIFORNIA AND IS DESCRIBED AS FOLLOWS: 

BEGINNING AT THE POINT OF INTERSECTION OF THE NORTHEASTERLY LINE OF SECOND STREET WITH THE SOUTHEASTERLY LINE OF FOLSOM STREET; RUNNING
THENCE NORTHEASTERLY ON FOLSOM STREET 275 FEET; THENCE AT RIGHT ANGLES SOUTHEASTERLY 298.38 FEET; THENCE LEAVING SAID LINE SOUTHERLY 22 DEGREES 30’20” EAST 57.07 FEET; THENCE ALONG TANGENT CURVE TO THE RIGHT, WITH A RADIUS OF 1,358 FEET,
THROUGH AN ANGLE OF 3 DEGREES 28’, AN ARC LENGTH OF 82.163 FEET; THENCE ALONG A TANGENT CURVE TO THE RIGHT WITH A RADIUS OF 658 FEET THROUGH AN ANGLE OF 11 DEGREES 36’26”, AN ARC DISTANCE OF 146.693 FEET TO THE NORTHWESTERLY LINE OF
HARRISON STREET; THENCE SOUTHWESTERLY ALONG SAID LINE OF HARRISON STREET 141.705 FEET TO THE NORTHEASTERLY LINE OF SECOND STREET; THENCE AT A RIGHT ANGLE NORTHWESTERLY ALONG SAID LINE OF SECOND STREET 550 FEET TO THE POINT OF BEGINNING. 

APN: 3749-062 

  
 Exhibit A

 303 Second Street — Unsecured Indemnity

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