Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
KILROY JOHN B SR
   2. Issuer Name and Ticker or Trading Symbol
KILROY REALTY CORP [NYSE: KRC] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
12200 WEST OLYMPIC BOULEVARD, SUITE 200		 3. Date of Earliest Transaction (Month/Day/Year)
07/18/2006
(Street)

LOS ANGELES, CA 90064		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common stock, par value $0.01 per share 07/13/2006   G V 302,950 D $ 0 0 I By Kilroy Industries
Common stock, par value $0.01 per share 07/18/2006   J(1)   297,102 A $ 0 (1) 297,102 (2) I By Kilroy Industries
Common stock, par value $0.01 per share 07/19/2006   G V 297,102 D $ 0 0 I By Kilroy Industries
Common stock, par value $0.01 per share 07/19/2006   G   297,102 A $ 0 297,102 D  
Common stock, par value $0.01 per share               3,676 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Common Limited Parnership Units of Kilroy Realty, L.P. (1) 07/18/2006   J(1)     297,102   (1)   (1) Common stock, par value $0.01 per share 297,102 $ 0 (1) 307,298 (3) I By Kilroy Industries and Kilroy Technologies Company, LLC

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
KILROY JOHN B SR
12200 WEST OLYMPIC BOULEVARD
SUITE 200
LOS ANGELES, CA 90064		   X      

Signatures

 /s/:Tyler H. Rose, as attorney-in-fact for John B. Kilroy, Sr.   07/19/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) 297,102 shares of common stock were issued in exchange for 297,102 common limited partnership units of Kilroy Realty, L.P., a Delaware limited partnership. The exchanged common limited partnership units of Kilroy Realty, L.P. were originally issued in exchange for the contribution of real property and related assets to Kilroy Realty, L.P.
(2) Represents the beneficial ownership interest in the referenced security as a result of Mr. Kilroy's interest in Kilroy Industries, the record owner of the referenced securities.
(3) Includes (a) 302,950 common limited partnership units owned by Kilroy Industries (for which John B. Kilroy, Sr. disclaims beneficial ownership of such units except to the extent of his interest in Kilroy Industries) and (b) 4,348 common limited partnership units owned by Kilroy Technologies Company, LLC (for which John B. Kilroy, Sr. disclaims beneficial ownership of such units except to the extent of his interest in Kilroy Technologies Company, LLC). The common limited partnership units may be exchanged, at Kilroy Realty Corporation's option, into shares of common stock of Kilroy Realty Corporation on a one-for-one basis.

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