Holding(s) in Company

Hammerson PLC
09 July 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: (X)

An event changing the breakdown of voting rights: (    )

Other (please specify) : (    )

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


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

Morgan Stanley


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):

4 July 2007



6. Date on which issuer notified:

6 July 2007



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

10%


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

Ordinary shares of 25p each       32,021,665                         32,021,665   
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  2,228,232               2,228,232      0                    0.78        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    28/02/2008                                      14,522,280                   4.99%
Swap

Total return    08/03/2008                                      14,522,280                   4.99%
Swap

Call option     18/04/2008                                      153,156                      0.05%

Call option     18/04/2008                                      153,156                      0.05%


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

31,272,792                     10.76%





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



Chain 1



Morgan Stanley (4.99%) (14,522,280 voting rights) by virtue of being the sole
shareholder of



MSRESS III, Inc. (4.99%) (14,522,280 voting rights) by virtue of being the sole
shareholder of



MSRESS III Manager L.L.C. (4.99%) (14,522,280 voting rights) by virtue of being
the sole shareholder of



Morgan Stanley Real Estate Special Situations III - GP, L.L.C. as general
partner to Morgan Stanley Real Estate Special Situations  Fund III L.P. (4.99%)
(14,522,280 voting rights) by virtue of being the sole shareholder of



GSS III Island Holdings Limited (4.99%) (14,522,280 voting rights)



Chain 2



Morgan Stanley (4.99%) (14,522,280 voting rights) by virtue of being the sole
shareholder of



MSREF Real Estate Advisor Inc. (4.99%) (14,522,280 voting rights) by virtue of
being the sole shareholder of



MSREF VI Inc. (4.99%) (14,522,280 voting rights) by virtue of being the sole
shareholder of



MSREF VI L.L.C. (4.99%) (14,522,280 voting rights) by virtue of being the sole
shareholder of



MSREF VI International-GP L.L.C. as general partner of the series of real estate
private equity funds that it manages ('MSREF VI') (4.99%) (14,522,280 voting
rights) by virtue of being the shareholders of



Nelly Holdings Limited (4.99%) (14,522,280 voting rights)





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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