Holding(s) in Company

Hammerson PLC
25 April 2008

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:



    Morgan Stanley (Institutional Securities Group and Global Wealth Management)



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 April 2008



6. Date on which issuer notified:



24 April 2008



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



8%



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

                                  22,990,232                         22,990,232
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  3,446,000               3,446,000      20,193,206           1.19%       6.98%



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    30/03/09                                        5,670,926                    1.97%
Swap


               
Total return    09/06/08                                        14,522,280                   5.01%
Swap





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

23,639,852                           8.17%




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



Morgan Stanley and Co Incorporated 101 (0%)



Morgan Stanley Securities Limited 3,355,648 (1.16%)



Morgan Stanley Capital (Luxembourg) SA 90,897 (0.03%)



Chain 1



Morgan Stanley (1.97%) (5,670,926 voting rights) by virtue of being the sole
shareholder of MSRESS III, Inc (1.97%) (5,670,926 voting rights) by virtue of
being the sole shareholder of MSRESS III Manager, L.L.C (1.97%) (5,670,926
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 (1.97%) (5,670,926 voting rights)
SSF III Hedging GP as general partner to SSF III Hedging, LP (1.97%) (5,670,926
voting rights).





Chain 2



Morgan Stanley (5.01%) (14,522,280 voting rights) by virtue of being the sole
shareholder of MSREF Real Estate Advisor Inc (5.01%) (14,522,280) voting rights)
by virtue of being the sole shareholder of MSREF VI Inc (5.01%) (14,522,280
voting rights) by virtue of being the sole shareholder of MSREF VI LLC (5.01%)
(14,522,280 voting rights) by virtue of being the sole shareholder of MSREF VI
International-GP LLC as general partner of the series of real estate private
equity funds that is manages ('MSREF VI') (5.01%) (14,522,280 voting rights) by
virtue of being the shareholders of Nelly Holdings Limited (5.02%) (14,522,280
voting rights.



Proxy Voting:



10. Name of the proxy holder:

N/A



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

N/A



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

N/A



13. Additional information:

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



14. Contact name:

Stuart Haydon



15. Contact telephone number:

[phone]


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