Transaction in Own Shares

Hammerson PLC
21 September 2007



Hammerson Plc

Transaction in own shares


The Company purchased through Citigroup Global Markets Limited on 20 September
2007 200,000 ordinary shares at an average price of 1166 pence per share. The
highest price paid was 1,170.5 pence per share and the lowest price paid was
1,159.0 pence per share.

The purchased shares will all be held as treasury shares. Hammerson Plc 
('Hammerson') currently holds 950,000 ordinary shares in treasury, and following
the purchase of these shares Hammerson's share capital consists of 289,625,217
ordinary shares with voting rights (excluding treasury shares).

The above figure may be used by shareholders as the denominator for the
calculations by which they will determine if they are required to notify their
interest in, or a change to their interest in, Hammerson under the FSA's
Disclosure and Transparency Rules.



Enquires

Simon Melliss, Group Finance Director                    Tel: [phone]
Christopher Smith, Director of Corporate Affairs         Tel: [phone]
                                                 [e-mail]



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