Holding(s) in Company

Hammerson PLC
25 October 2007


TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES



1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached:



Hammerson plc



2. Reason for the notification (place an X inside the appropriate bracket/s)

An acquisition or disposal of voting rights: (X)



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 the notification obligation:



    Cater Allen International Limited



4. Full name of shareholder(s) (if different from 3.) :

.................



5. Date of the transaction (and date on which the threshold is crossed or
reached if different):



22 October 2007



6. Date on which issuer notified:



25 October 2007



7. Threshold(s) that is/are crossed or reached:



3%



8. Notified details:

.................



A: Voting rights attached to shares


Class/type of shares if possible              Situation previous to the Triggering transaction
using the ISIN CODE
                                  Number of shares                   Number of voting Rights

                                  10,859,159                         10,859,159
Ordinary shares of 25p each



GB0004065016












Resulting situation after the triggering transaction


Class/type of shares if      Number of shares        Number of voting rights             % of voting rights
possible using the ISIN CODE




                             Direct                  Direct         Indirect             Direct      Indirect

Ordinary shares of 25p each  4,209,159               4,209,159      0                    1.45%       0



GB0004065016








B: Financial Instruments

Resulting situation after the triggering transaction


Type of         Expiration Date       Exercise/Conversion       Number of voting rights that % of voting rights
financial                             Period/ Date              may be acquired if the
instrument                                                      instrument is exercised/
                                                                converted.








Total return
Swap
Call option


Call option



Total (A+B)
Number of voting rights        % of voting rights

4,209,159
                               1.45%














9. Chain of controlled undertakings through which the voting rights and/or the
   financial instruments are effectively held, if applicable:



Chain 1









Chain 2







Proxy Voting:



10. Name of the 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:

Stuart Haydon



15. Contact telephone number:

[phone]


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