Holding(s) in Company

Hammerson PLC
02 May 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



An acquisition or disposal of voting rights.



3. Full name of person(s) subject to the notification obligation:



John Frederick Nelson

(Hammerson plc Chairman and proxy holder)



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



49 Shareholders with holdings less than 1% each



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



1 May 2007



6. Date on which issuer notified:



1 May 2007



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



3%



8. Notified details:



N/A



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
Ordinary Shares of 25p each
                                  10,000
ISIN: GB0004065016                                                   10,000






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

                                                      10,000       1,002,037
Ordinary Shares of 25p each              10,000                                         <1%         3.45%

ISIN: GB0004065016








B: Financial Instruments

Resulting situation after the triggering transaction


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




N/A             N/A                  N/A                       N/A                         N/A



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

1,012,037                      3.48%





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



N/A



Proxy Voting:

10. Name of the proxy holder:



John Frederick Nelson

(Hammerson plc Chairman and proxy holder)



11. Number of voting rights proxy holder will cease to hold:



1,012,037



12. Date on which proxy holder will cease to hold voting rights:



3 May 2007



13. Additional information:

This notification relates to voting rights held by John Frederick Nelson
(Chairman of Hammerson plc) pursuant to proxies received for the purpose of the
AGM to be held on 3 May 2007. The voting rights will lapse immediately upon the
conclusion of the meeting and voting rights returned to all shareholders.



14. Contact name:



Stuart Haydon



15. Contact telephone number:



[phone]


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