Holding(s) in Company

Hammerson PLC
09 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 (place an X inside the appropriate bracket/s)

An acquisition or disposal of voting rights: (    )

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):

3 May 2007

6. Date on which issuer notified:

8 May 2007

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

                                  25,834,375                         25,834,375
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  0                        0            0                    0           0

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.

Total return    28/02/2008                                     13,147,205                  4.53%
Swap of GSS III
Island Holdings
Limited

Total return    08/03/2008                                     13,147,205                  4.53%
Swap of Nelly
Holdings
Limited

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

26,600,722                     9.15%
                               





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

Chain 1

Morgan Stanley (4.53%) (13,147,205 voting rights) by virtue of being the sole
shareholder of

MSRESS III, Inc. (4.53%) (13,147,205 voting rights) by virtue of being the sole
shareholder of

MSRESS III Manager L.L.C. (4.53%) (13,147,205 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. (4.53%)
(13,147,205 voting rights) by virtue of being the sole shareholder of

GSS III Island Holdings Limited (4.53%) (13,147,205 voting rights)

Chain 2

Morgan Stanley (4.53%) (13,147,205 voting rights) by virtue of being the sole
shareholder of

Morgan Stanley Real Estate F Funding, Inc., as general partner of Morgan Stanley
Real Estate F International Funding, L.P. (4.53%) (13,147,205 voting rights) by
virtue of being the sole shareholder of

Nelly Holdings Limited (4.53%) (13,147,205 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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