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 *
ZIMAN RICHARD S
  2. Issuer Name and Ticker or Trading Symbol
ARDEN REALTY INC [ARI]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chairman of the Board/CEO
(Last)
(First)
(Middle)
11601 WILSHIRE BOULEVARD, 4TH FLOOR
3. Date of Earliest Transaction (Month/Day/Year)
12/16/2004
(Street)

LOS ANGELES, CA 90025-1740
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 12/16/2004   M   125,000 A $ 19.125 1,034,446 D (1)  
Common stock 12/16/2004   S   125,000 D (2) 909,446 D (1)  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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
Stock option (right to buy) $ 19.125 12/16/2004   M     125,000 12/03/2000(3) 12/03/2009 common stock 125,000 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
ZIMAN RICHARD S
11601 WILSHIRE BOULEVARD
4TH FLOOR
LOS ANGELES, CA 90025-1740
  X     Chairman of the Board/CEO  

Signatures

 /s/ David A. Swartz David A. Swartz POA for Richard S. Ziman   12/17/2004
**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) In addition, 2,000 shares are held indirectly by the reporting person by a limited partnership
(2) 1,400 shares sold at $37.25; 400 shares sold at $37.24; 200 shares sold at $37.22; 13,100 shares sold at $37.20; 500 shares sold at $37.17; 1,500 shares sold at $37.16; 100 shares sold at $37.06; 3,000 shares sold at $37.01; 14,000 shares sold at $37.00; 1,500 shares sold at $36.99; 600 shares sold at $36.98; 100 shares sold at $36.95; 600 shares sold at $36.94; 800 shares sold at $36.92; 300 shares sold at $36.91; 400 shares sold at $36.90; 500 shares sold at $36.87; 1,600 shares sold at $36.86; 200 shares sold at $36.85; 2,200 shares sold at $36.82; 82,000 shares sold at $36.80;
(3) Option vests in two (2) equal annual installments commmencing December 3, 2000.

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