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