Holding(s) in Company

Great Portland Estates PLC 06 May 2008 TO: RNS Today, we have received notification that Cohen & Steers Inc. holds 16,322,468 ordinary shares of 12.5p each in this Company, representing 9.017% of the issued share capital of the Company. A copy of their notice is attached for your information. Gina Leher Assistant Company Secretary For GREAT PORTLAND ESTATES plc For filings with the FSA include the annex For filings with issuer exclude the annex TR-1: Notifications of Major Interests in Shares 1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached: GREAT PORTLAND ESTATES PLC 2. Reason for notification (please place an X inside the appropriate bracket/s): An acquisition or disposal of voting rights: (YES) An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: ( ) An event changing the breakdown of voting rights: ( ) Other (please specify) : ( ) 3. Full name of person(s) subject to notification obligation: COHEN & STEERS, INC. 4. Full name of shareholder(s) (if different from 3) : COHEN & STEERS, INC ('CSI') COHEN & STEERS CAPITAL MANAGEMENT, INC. ('CSCM') COHEN & STEERS EUROPE S.A. ('CSE') 5. Date of transaction (and date on which the threshold is crossed or reached if different): MAY 2ND, 2008 6. Date on which issuer notified: MAY 5TH, 2008 7. Threshold(s) that is/are crossed or reached: ABOVE 9.0% 8. Notified Details: A: Voting rights attached to shares Class/type of shares Situation previous to if possible use the Triggering transaction ISIN CODE Number of shares Number of voting Rights GB00B01FLL16 16,288,633 16,288,633 Resulting situation after the triggering transaction Class/type of shares Number of shares Number of voting rights % of voting rights if possible use ISIN CODE Direct Indirect Direct Indirect GB00B01FLL16 16,322,468 16,322,468 9.017% B: Financial Instruments Resulting situation after the triggering transaction Type of Expiration date Exercise/conversion No. of voting % of voting financial period/date rights that may rights instrument be acquired (if the instrument exercised/ converted) NIL Total (A+B) Number of voting rights % of voting rights 16,322,468 9.017% 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: CSE IS THE CONTROLLED UNDERTAKING OF CSI AND HOLDS 1,448,733 VOTING RIGHTS. THIS IS AN INDIRECT HOLDING OF LESS THAN 3%. CSCM IS THE CONTROLLED UNDERTAKING OF CSI AND HOLDS 14,873,735 VOTING RIGHTS. THIS IS AN INDIRECT HOLDING OF MORE THAN 5%. Proxy Voting: 10. Name of proxy holder: 11. Number of voting rights proxy holder will cease to hold: 12. Date on which proxy holder will cease to hold voting rights: 13. Additional information: 14. Contact name: LISA D. PHELAN 15. Contact telephone number: 00 1 212-4469160 For notes on how to complete form TR-1 please see the FSA website. This information is provided by RNS The company news service from the London Stock Exchange
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