EOP Equity Office Properties Tru

Equity Office Properties Trust (NYSE:EOP) and its subsidiary, EOP Operating Limited Partnership, have filed a resale registration statement on Form S-3 for the resale of up to $1.5 billion aggregate principal amount of EOP Partnership�s 4.00% Exchangeable Senior Notes due 2026 (�Notes�) and 41,424,900 common shares of beneficial interest of Equity Office, which common shares may be issued, under certain circumstances, upon exchange of the Notes. The Notes are senior unsecured obligations of EOP Partnership that were originally sold on June 27, 2006 to qualified institutional buyers in a private placement under Rule 144A of the Securities Act of 1933. Equity Office is a co-obligor on the Notes and fully and unconditionally guarantees the Notes. Selling security holders specified in the registration statement may, once the registration statement is declared effective, use the prospectus contained therein to offer and resell the securities covered by the registration statement. Neither Equity Office nor EOP Partnership will receive any of the proceeds from the resale of the securities. The registration statement was filed with the Securities and Exchange Commission (�SEC�) on September 12, 2006. Equity Office anticipates the registration statement to be declared effective by the SEC on or about November 15, 2006. In order for a security holder to be included in the prospectus and the registration statement, such security holder must prepare and deliver to Equity Office a Revised and Updated Questionnaire on or before October 31, 2006. Even if a security holder has already delivered a questionnaire to Equity Office, each security holder must prepare and deliver the Revised and Updated Questionnaire. Copies of the Revised and Updated Questionnaire are available by contacting Kenneth A. Koranda of Equity Office by telephone (312-466-3462) or email (Ken_Koranda@equityoffice.com). This release shall not constitute an offer to sell or the solicitation of an offer to buy any of these securities, nor shall it constitute an offer, solicitation or sale in any jurisdiction in which such offer, solicitation or sale is unlawful. Equity Office Properties Trust (NYSE: EOP), operating through its various subsidiaries and affiliates, is the nation's largest publicly held office building owner and manager with a total office portfolio consisting of whole or partial interests in 586 buildings comprising 109.6 million square feet in 16 states and the District of Columbia. Equity Office has an ownership presence in 24 Metropolitan Statistical Areas (MSAs) and in 101 submarkets, enabling it to provide a wide range of office solutions for local, regional and national customers. For more company information, visit the Equity Office website at http://www.equityoffice.com. Equity Office Properties Trust (NYSE:EOP) and its subsidiary, EOP Operating Limited Partnership, have filed a resale registration statement on Form S-3 for the resale of up to $1.5 billion aggregate principal amount of EOP Partnership's 4.00% Exchangeable Senior Notes due 2026 ("Notes") and 41,424,900 common shares of beneficial interest of Equity Office, which common shares may be issued, under certain circumstances, upon exchange of the Notes. The Notes are senior unsecured obligations of EOP Partnership that were originally sold on June 27, 2006 to qualified institutional buyers in a private placement under Rule 144A of the Securities Act of 1933. Equity Office is a co-obligor on the Notes and fully and unconditionally guarantees the Notes. Selling security holders specified in the registration statement may, once the registration statement is declared effective, use the prospectus contained therein to offer and resell the securities covered by the registration statement. Neither Equity Office nor EOP Partnership will receive any of the proceeds from the resale of the securities. The registration statement was filed with the Securities and Exchange Commission ("SEC") on September 12, 2006. Equity Office anticipates the registration statement to be declared effective by the SEC on or about November 15, 2006. In order for a security holder to be included in the prospectus and the registration statement, such security holder must prepare and deliver to Equity Office a Revised and Updated Questionnaire on or before October 31, 2006. Even if a security holder has already delivered a questionnaire to Equity Office, each security holder must prepare and deliver the Revised and Updated Questionnaire. Copies of the Revised and Updated Questionnaire are available by contacting Kenneth A. Koranda of Equity Office by telephone (312-466-3462) or email (Ken_Koranda@equityoffice.com). This release shall not constitute an offer to sell or the solicitation of an offer to buy any of these securities, nor shall it constitute an offer, solicitation or sale in any jurisdiction in which such offer, solicitation or sale is unlawful. Equity Office Properties Trust (NYSE: EOP), operating through its various subsidiaries and affiliates, is the nation's largest publicly held office building owner and manager with a total office portfolio consisting of whole or partial interests in 586 buildings comprising 109.6 million square feet in 16 states and the District of Columbia. Equity Office has an ownership presence in 24 Metropolitan Statistical Areas (MSAs) and in 101 submarkets, enabling it to provide a wide range of office solutions for local, regional and national customers. For more company information, visit the Equity Office website at http://www.equityoffice.com.