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

January 31, 2007

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 January 31, 2007



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

SCHEDULE 13G

(Amendment No.1 )

Under the Securities Exchange Act of 1934


Avalon Bay Communities Inc.
---------------------------------------
NAME OF ISSUER:


Common Stock
---------------------------------------
TITLE OF CLASS OF SECURITIES


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


December 29, 2006
---------------------------------------
(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 2,488,008
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 4,563,685
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

4,564,485

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

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.81%

12. TYPE OF REPORTING PERSON

HC, CO, BK

* In accordance with Securities Exchange Act Release No. 39538 (January 12,
1998), this filing reflects the securities beneficially owned by the
Corporate and Investment Banking business group and the Corporate
Investments business group (collectively, "CIB") 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
CIB is, for purposes of Section 13(d) under the Act, the beneficial owner
of any securities covered by the filing. Furthermore, CIB disclaims
beneficial ownership of the securities beneficially owned by (i) any client
accounts with respect to which CIB or its employees have voting or
investment discretion, or both, and (ii) certain investment entities, of
which CIB is the general partner, managing general partner, or other
manager, to the extent interests in such entities are held by persons other
than CIB.




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 2,422,458
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 4,483,185
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

4,483,185

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

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.70%

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, Inc.

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 61,200
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 66,800
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

66,800

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

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

0.08%

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 0
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 2,150
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,150

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

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

0.03%

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 Investmentgesellshaft


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 4,350
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 4,350
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

4,350

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 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 0
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 7,200
PERSON WITH 8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

7,200

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

[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

0.01%

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

IA, CO




Item 1(a). Name of Issuer:

Avalon Bay 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:

Taunusanlage 12
D-60325 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) [ ] 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);

RREEF America, L.L.C

Deutsche Asset Management, Inc

Deutsche Investment Management Americas Inc.

Deutsche Asset Management Investmentgesellshaft

Deutsche Bank Trust Company National Association


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

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

Deutsche Bank AG

(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) [ ] 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

RREEF America, L.L.C. Investment Advisors

Deutsche Asset Management, Inc. Investment Advisors

Deutsche Bank Trust Company Americas Bank

Deutsche Investment Mgmt Americas Inc. Investment Advisor

Deutsche Asset Mgmt Investmentgesellshaft Investment Advisor

Deutsche Bank Trust Co National Assoc. Investment Advisors

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 securities referred to above were acquired and
are held in the ordinary course of business and were not
acquired and are not held for the purpose of or with the
effect of changing or influencing the control of the issuer of
the securities and were not acquired and are not held in
connection with or as a participant in any transaction having
that purpose or effect.




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: January 31, 2007






Deutsche Bank AG

By: /s/ Jeffrey A. Ruiz
Name: Jeffrey A. Ruiz
Title: Vice President

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: January 31, 2007






RREEF America L.L.C.

By: /s/ Peter Pages
Name: Peter Pages
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: January 31, 2007






Deutsche Asset Management, Inc.

By: /s/ Jeffrey A. Ruiz
Name: Jeffrey A. Ruiz
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: January 31, 2007






Deutsche Bank Trust Company Americas

By: /s/ Jeffrey A. Ruiz
Name: Jeffrey A. Ruiz
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: January 31, 2007






DWS Investments S.A., Luxembourg

By: /s/ Susan Seidel
Name: Susan Seidel
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: January 31, 2007






Deutsche Bank Trust Company National Assoc.

By: /s/ Jeffrey A. Ruiz
Name: Jeffrey A. Ruiz
Title: Vice President