As filed with the Securities and Exchange Commission on June 28, 2005

Registration No. 333-          

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

FORM S-11

FOR REGISTRATION UNDER
THE SECURITIES ACT OF 1933
OF CERTAIN REAL ESTATE COMPANIES

American Campus Communities, Inc.

805 Las Cimas Parkway, Suite 400
Austin, TX 78746
(512) 732-1000
(Address, Including Zip Code and Telephone Number, Including Area Code,
of Registrant’s Principal Executive Offices)

William C. Bayless, Jr.
President and Chief Executive Officer
805 Las Cimas Parkway, Suite 400
Austin, TX 78746
(512) 732-1000
(Name, Address, Including Zip Code and Telephone Number, Including Area Code, of Agent for Service)

Copies to:

Approximate date of commencement of proposed sale to the public: As soon as practicable after this Registration Statement becomes effective.

If this form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement of the same offering. þ Registration No. 333-125549

If this form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. o

If this form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. o

If delivery of the prospectus is expected to be made pursuant to Rule 434, please check the following box. o

CALCULATION OF REGISTRATION FEE

Table of Contents

EXPLANATORY NOTE

     This registration statement is being filed pursuant to Rule 462(b) and General Instruction G of Form S-11, both as promulgated under the Securities Act of 1933, as amended, and includes the registration statement facing page, this page, the signature page, an exhibit index and the required opinion and consents. The contents of the Registration Statement on Form S-11 (Registration No. 333-125549), including the exhibits thereto, which was declared effective by the Securities and Exchange Commission on June 28, 2005, are incorporated by reference in this registration statement.

SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that the registrant meets all of the requirements for filing on Form S-11 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Austin, State of Texas, on this 28^th day of June 2005.

     Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.

By: /s/ William C. Bayless, Jr.
      William C. Bayless, Jr.
      Attorney-in-Fact

EXHIBIT INDEX