Holding(s) in Company

Hammerson PLC
25 March 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):

18 March 2008

6. Date on which issuer notified:

25 March 2008

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

9%

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       28,519,851                         28,519,851

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  2,161,083               2,161,083      23,172,006           0.75%       8.01%

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    28/02/08                                        8,343.414                    2.88%
Swap
                
Total return    08/03/08                                        14,522,280                   5.02%
Swap

Call option     18/04/08                                        153,156                      0.05%

Call option     18/04/08                                        153,156                      0.05%



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

25,333,089
                               8.76%














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 515, 726 (0.17%)



Morgan Stanley Securities Limited 1,860,772 (0.64%)



Morgan Stanley Capital (Luxembourg) SA 90,987 (0.03%)



Chain 1



Morgan Stanley (2.88%) (8,343,414 voting rights) by virtue of being the sole
shareholder of MSRESS III, Inc (2.88%) (8,343,414 voting rights) by virtue of
being the sole shareholder of MSRESS III Manager L.L.C (2.88%) (8,434,414 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 (2.88%) (8,343,414 voting rights) by
virtue of being the sole shareholder of GSS III Island Holdings Limited (2.88% )
(8,434,414 voting rights) by virtue being the sole shareholder of Minster
Limited (Jersey) (2.88%) (8,434,414 voting rights).





Chain 2



Morgan Stanley (5.02%) (14,522,280 voting rights) by virtue of being the sole
shareholder of MSREF Real Estate Advisor Inc. (5.02%) (14,522,280 voting rights)
by virtue of being the sole shareholder of MSREF VI Inc. (5.02%) (14,522,280
voting rights by virtue of being the sole shareholder of MSREF VI L.L.C (5.02%)
(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') (5.02%) (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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