Holding(s) in Company

Great Portland Estates PLC
07 November 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:                 GREAT PORTLAND ESTATES PLC


2.   Reason for the notification (please state Yes/No): (   )

     An acquisition or disposal of voting rights:                        (Yes)

     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:

     GOVERNMENT OF SINGAPORE INVESTMENT CORPORATION PRIVATE LIMITED


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

     Chase Nominees Ltd and Nortrust Nominees Ltd (as registered holders and 
     nominees) 

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

     06 November 2007 


6.   Date on which issuer notified:

     06 November 2007 
 

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

     5%
 

8.   Notified details:

A:   Voting rights attached to shares

 
Class/type of shares            Situation previous to  
if possible using the           the Triggering         
ISIN CODE                       transaction        
                       Number of shares       Number of voting Rights 

Ordinary shares        9,167,911              9,167,911
of 12.5p each          

ISIN:
GB00B01FLL16           
 

                     Resulting situation after the triggering transaction 
 
Class/type of shares Number of shares Number of voting rights % of voting rights  
if possible using                                                                 
the ISIN CODE                                                                         
                     Direct  Indirect Direct     Indirect     Direct    Indirect  

Ordinary shares      8,957,246        8,950,294  6,952        4.944%    0.004%
of 12.5p each          

ISIN:
GB00B01FLL16           
 

B: Financial Instruments

Resulting situation after the triggering transaction 

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

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

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

8,957,246                     4.948%

     
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:              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:                Contact address of person subject to
                                            notification obligation:
 
                                            168 Robinson Road,

                                            Capital Tower #37-01,
                                            Singapore 068912

14.  Contact name:                          Ms. Celina Chua


15.  Contact telephone number:             (65) 6889 8503




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