Form: SC 13G/A

Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions

February 11, 2009

SC 13G/A: Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions

Published on February 11, 2009




UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G


Under the Securities Exchange Act of 1934

(Amendment No. 1)

Avalonbay Communities, Inc.
---------------------------------------
NAME OF ISSUER:


Common Stock (Par Value $ 0.01)
---------------------------------------
TITLE OF CLASS OF SECURITIES


053484101
-------------------------------------
CUSIP NUMBER


December 31, 2008
---------------------------------------
(Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:

[x] Rule 13d-1(b)

[ ] Rule 13d-1(c)

[ ] Rule 13d-1(d)




1. NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

Deutsche Bank AG*

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(A) [ ]
(B) [ ]

3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION

Federal Republic of Germany

NUMBER OF 5. SOLE VOTING POWER
SHARES 2,890,704
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 4,859,721
PERSON WITH 8. SHARED DISPOSITIVE POWER
860

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

4,860,581

10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

6.30%

12. TYPE OF REPORTING PERSON

FI

* In accordance with Securities Exchange Act Release No. 39538 (January 12,
1998), this amended filing reflects the securities beneficially owned by
the Private Clients and Asset Management business group ("PCAM") of
Deutsche Bank AG and its subsidiaries and affiliates (collectively,
"DBAG"). This filing does not reflect securities, if any, beneficially
owned by any other business group of DBAG. Consistent with Rule 13d-4 under
the Securities Exchange Act of 1934 ("Act"), this filing shall not be
construed as an admission that PCAM is, for purposes of Section 13(d) under
the Act, the beneficial owner of any securities covered by the filing.




1. NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

Deutsche Investment Management Americas

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(A) [ ]
(B) [ ]

3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF 5. SOLE VOTING POWER
SHARES 661,017
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 666,017
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

666,017

10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

0.86%

12. TYPE OF REPORTING PERSON

IA, CO



1. NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

Deutsche Bank Trust Company Americas

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(A) [ ]
(B) [ ]

3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF 5. SOLE VOTING POWER
SHARES 17,810
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 17,750
PERSON WITH 8. SHARED DISPOSITIVE POWER
60

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

17,810

10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

0.02%

12. TYPE OF REPORTING PERSON

BK, CO



1. NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

RREEF America, L.L.C.

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(A) [ ]
(B) [ ]

3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware


NUMBER OF 5. SOLE VOTING POWER
SHARES 1,983,121
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 3,884,235
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

3,884,235

10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.04%

12. TYPE OF REPORTING PERSON

IA, CO


1. NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

Deutsche Bank Trust Company National Association

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(A) [ ]
(B) [ ]

3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF 5. SOLE VOTING POWER
SHARES 0
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 0
PERSON WITH 8. SHARED DISPOSITIVE POWER
800

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

800

10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

0.00%

12. TYPE OF REPORTING PERSON

BK, CO



1. NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

Deutsche Asset Management Japan Limited

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(A) [ ]
(B) [ ]

3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION

Japan

NUMBER OF 5. SOLE VOTING POWER
SHARES 60
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 60
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

60

10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

0.00%

12. TYPE OF REPORTING PERSON

IA, CO





1. NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

Deutsche Asset Management International GmbH

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(A) [ ]
(B) [ ]

3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION

Federal Republic of Germany

NUMBER OF 5. SOLE VOTING POWER
SHARES 0
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 1,300
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,300

10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

0.00%

12. TYPE OF REPORTING PERSON

IA, CO



1. NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

DWS Investments S.A., Luxembourg

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(A) [ ]
(B) [ ]

3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION

Federal Republic of Germany

NUMBER OF 5. SOLE VOTING POWER
SHARES 14,075
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 14,075
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

14,075

10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

0.02%

12. TYPE OF REPORTING PERSON

IA, CO



1. NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

Deutsche Asset Management Australia Ltd

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(A) [ ]
(B) [ ]

3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION

Federal Republic of Australia

NUMBER OF 5. SOLE VOTING POWER
SHARES 214,621
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 276,284
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

276,284

10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

0.36%

12. TYPE OF REPORTING PERSON

IA, CO



Item 1(a). Name of Issuer:

Avalonbay Communities Inc. (the "Issuer")

Item 1(b). Address of Issuer's Principal Executive Offices:

2900 Eisenhower Avenue Suite 300
Alexandria, VA 22314

Item 2(a). Name of Person Filing:

This statement is filed on behalf of Deutsche Bank AG
("Reporting Person").

Item 2(b). Address of Principal Business Office or, if none, Residence:

Theodor-Heuss-Allee 70
60468 Frankfurt am Main
Federal Republic of Germany

Item 2(c). Citizenship:

The citizenship of the Reporting Person is set forth on the
cover page.

Item 2(d). Title of Class of Securities:

The title of the securities is common stock, $0.01 par value
("Common Stock").

Item 2(e). CUSIP Number:

The CUSIP number of the Common Stock is set forth on the cover
page.

Item 3. If this statement is filed pursuant to Rules 13d-1(b), or
13d-2(b) or (c), check whether the person filing is a:

(a) [ ] Broker or dealer registered under section 15 of the
Act;

(b) [x] Bank as defined in section 3(a)(6) of the Act;

Deutsche Bank Trust Company Americas

(c) [ ] Insurance Company as defined in section 3(a)(19)
of the Act;

(d) [ ] Investment Company registered under section 8
of the Investment Company Act of 1940;

(e) [x] An investment adviser in accordance with Rule
13d- 1(b)(1)(ii)(E);

Deutsche Investment Management Americas

RREEF America, L.L.C

Deutsche Bank Trust Company National Association

Deutsche Asset Management Japan Limited

Deutsche Asset Mgmt International GmbH

DWS Investments S.A., Luxembourg

Deutsche Asset Management Australia Ltd

(f) [ ] An employee benefit plan, or endowment fund in
accordance with Rule 13d-1 (b)(1)(ii)(F);

(g) [ ] Parent holding company or control person in
accordance with Rule 13d-1 (b)(1)(ii)(G);

(h) [ ] A savings association as defined in section 3(b) of
the Federal Deposit Insurance Act;

(i) [ ] A church plan that is excluded from the definition of
an investment company under section 3(c)(14) of the
Investment Company Act of 1940;

(j) [X] A non-U.S. institution in accordance with Group, in
accordance with Rule 13d-1 (b)(1)(ii)(J).

(k) [ ] Group, in accordance with Rule 13d-1 (b)(1)(ii)(J).

Item 4. Ownership.

(a) Amount beneficially owned:

The Reporting Person owns the amount of the Common Stock
as set forth on the cover page.

(b) Percent of class:

The Reporting Person owns the percentage of the Common
Stock as set forth on the cover page.

(c) Number of shares as to which such person has:

(i) sole power to vote or to direct the vote:

The Reporting Person has the sole power to vote or
direct the vote of the Common Stock as set forth on
the cover page.

(ii) shared power to vote or to direct the vote:

The Reporting Person has the shared power to vote or
direct the vote of the Common Stock as set forth on
the cover page.

(iii) sole power to dispose or to direct the disposition
of:

The Reporting Person has the sole power to dispose
or direct the disposition of the Common Stock as set
forth on the cover page.

(iv) shared power to dispose or to direct the disposition
of:

The Reporting Person has the shared power to dispose
or direct the disposition of the Common Stock as set
forth on the cover page.

Item 5. Ownership of Five Percent or Less of a Class.

Not applicable.

Item 6. Ownership of More than Five Percent on Behalf of Another
Person.

Not applicable.

Item 7. Identification and Classification of the Subsidiary Which
Acquired the Security Being Reported on by the Parent Holding
Company.

Subsidiary Item 3 Classification

Deutsche Investment Management Americas Investment Advisor

Deutsche Bank Trust Company Americas Bank

RREEF America, L.L.C. Investment Advisor

Deutsche Asset Management Japan Limited Investment Advisor

Deutsche Bank Trust Co. National Assoc. Bank

Deutsche Asset Mgmt International GmbH Investment Advisor

Deutsche Asset Management Australia Ltd Investment Advisor

DWS Investments S.A., Luxembourg Investment Advsior

Item 8. Identification and Classification of Members of the Group.

Not applicable.

Item 9. Notice of Dissolution of Group.

Not applicable.

Item 10. Certification.



By signing below I certify that, to the best of my knowledge and belief,
the foreign regulatory scheme applicable to a bank organized under the laws of
the Federal Republic of Germany is substantially comparable to the regulatory
scheme applicable to the functionally equivalent U.S. institution. I also
undertake to furnish to the Commission staff, upon request, information that
would otherwise be disclosed in a Schedule 13D.






SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


Dated: February 11, 2009






Deutsche Bank AG

By: /s/ Jeffrey A. Ruiz
Name: Jeffrey A. Ruiz
Title: Director

By: /s/ Pasquale Antolino
Name: Pasquale Antolino
Title: Assistant Vice President













SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


Dated: February 11, 2009







Deutsche Investment Management Americas

By: /s/ Jeffrey A. Ruiz
Name: Jeffrey A. Ruiz
Title: Director




SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


Dated: February 11, 2009






Deutsche Bank Trust Company Americas

By: /s/ Jeffrey A. Ruiz
Name: Jeffrey A. Ruiz
Title: Director





SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


Dated: February 11, 2009





RREEF America L.L.C.

By: /s/ Peter Pages
Name: Peter Pages
Title: Director










SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


Dated: February 11, 2009







Deutsche Bank Trust Company National Association

By: /s/ Jeffrey A. Ruiz
Name: Jeffrey A. Ruiz
Title: Director


SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


Dated: February 11, 2009






Deutsche Asset Management Japan Limited

By: /s/ Fumie Yamamoto
Name: Fumie Yamamoto
Title: Vice President



SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


Dated: February 11, 2009







Deutsche Asset Management International GmbH

By: /s/ Christian Dargatz
Name: Christian Dargatz
Title: Director

By: /s/ Jack Sturmhoefel
Name: Jack Sturmhoefel
Title: Assistant Vice President













SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


Dated: February 11, 2009





DWS Investments S.A., Luxembourg

By: /s/ Christian Dargatz
Name: Christian Dargatz
Title: Director

By: /s/ Jack Sturmhoefel
Name: Jack Sturmhoefel
Title: Assistant Vice President








SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


Dated: February 11, 2009





Deutsche Asset Management Australia Ltd


By: /s/ Anne Gardiner
Name: Anne Gardiner
Title: Director, Compliance

By: /s/ Michael Thomas
Name: Michael Thomas
Title: Vice President, Compliance