Form: 4

Statement of changes in beneficial ownership of securities

January 5, 2005

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP


Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
CHOATE BRUCE A
(Last) (First) (Middle)
C/O AVALONBAY COMMUNITIES, INC.
2900 EISENHOWER AVE., SUITE 300
(Street)
ALEXANDRIA VA 22314
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
AVALONBAY COMMUNITIES INC [ AVB ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
01/03/2005
4. If Amendment, Date of 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
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 $.01 per share 01/03/2005 M 1,000 A $25.375 27,235.081(1) D
Common Stock, par value $.01 per share 01/04/2004 M 5,000 A $40.5 32,235.081(1) D
Common Stock, par value $.01 per share 01/04/2005 S 4,800 D $74.67 27,435.081(1) D
Common Stock, par value $.01 per share 01/04/2005 S 200 D $74.87 27,235.081(1) D
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 Securities Underlying Derivative Security (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: 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 Options (Right to Buy) $25.375 01/03/2005 M 1,000 05/01/1997 05/01/2006 Common Stock 1,000 $0.00(2) 31,000(3) D
Stock Options (Right to Buy) $40.5 01/04/2005 M 5,000 05/17/2001 05/17/2010 Common Stock 5,000 $0.00(4) 26,000(5) D
Explanation of Responses:
1. The amount of securities owned following the reported transaction reflects direct ownership of all shares of common stock, including Deferred Stock Units ("Units"), which may be subject to vesting requirements. The Units will convert into common stock when the reporting person ceases to be an employee or director of the issuer. The amount of securities owned following the reported transaction includes 486.787 Units issued in lieu of dividends on the reporting person's Units on the issuer's second and third quarter dividend payment dates.
2. The options exercised were included in options granted on May 1, 1996 under the issuer's Stock Option and Incentive Plan.
3. The number of derivative securities beneficially owned following the reported transaction includes options granted on various dates with varying exercise prices and vesting dates. Following the reported transaction the reporting person holds no more options that expire on May 1, 2006 with an exercise price of $25.375.
4. The options exercised were included in options granted on May 17, 2000 under the issuer's Stock Option and Incentive Plan.
5. The number of derivative securities beneficially owned following the reported transaction includes options granted on various dates with varying exercise prices and vesting dates. Following the reported transaction, the reporting person owns 5,000 more options that expire on May 17, 2010 with an exercise price of $40.50.
Remarks:
By Edward M. Schulman under Power of Attorney dated January 27, 2000 01/05/2005
** Signature of Reporting Person Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* 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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.