Holding(s) in Company

Great Portland Estates PLC
19 March 2008





TR-1(i):       NOTIFICATION OF MAJOR INTERESTS IN SHARES



(1). Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached (ii):

Great Portland Estates PLC


2. Reason for the notification (yes/no)

An acquisition or disposal of voting rights:                               yes

An acquisition or disposal of financial instruments which may result       no
in the acquisition of shares already issued to which voting rights are 
attached:                                                                  

An event changing the breakdown of voting rights:                          no
                                                                         
Other (please specify) :                                                   no




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

Standard Life Investments Ltd
 

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

Vidacos Nominees


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

18 March 2008


6. Date on which issuer notified:

19 March 2008
 

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

5%
 

8. Notified details:


A: Voting rights attached to shares
 
Class/type of shares   If possible using ISIN code:    GB00B01FLL16
         
Situation previous to the triggering transaction:

Number of shares:            Number of voting rights:  

9,270,303                    9,270,303

                                                                                                                        
             

                                                                                                                        
Resulting situation after the triggering transaction 

Number of shares      Number of voting rights            % of voting rights  

                      Direct          Indirect           Direct     Indirect  

8,761,764             2,402,618       6,359,146          1.327%     3.513%


                                         

                                                                  


B: Financial Instruments

Resulting situation after the triggering transaction (xii)

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

                                    



Total (A+B)

Number of voting rights              % of voting rights 
                                  
8,761,764                            4.840%

                                


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

Standard Life Investments Ltd



 


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:

Alison Kennedy
Corporate Governance Manager - Engagement
Standard Life Investments Ltd


15. Contact telephone number:
 
[phone]




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