Holding(s) in Company

Great Portland Estates PLC
01 October 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 (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:

Cohen & Steers, Inc
 

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

Cohen & Steers, Inc ('CSI')

 Cohen & Steers Capital
Management, Inc ('CSCM')

Cohen & Steers Europe S.A.
        ('CSE')
 

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

September 27th, 2007
 

6. Date on which issuer notified:

October 1st, 2007
 

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

6%
 

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 

GB00B01FLL16           10,513,750             10,513,750
 



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  

                                                    11,264,750                6%
 


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.                           
Nil
 

Total (A+B)

Number of voting rights       % of voting rights 

11,264,750                    6%


 

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

CSE is the controlled undertaking of CSI and holds 1,287,383 voting rights.
This is an indirect holding of less than 3%.

CSCM is the controlled undertaking of CSI and holds 9,977,367 voting rights.
This is an indirect holding of more than 5%.
 




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:

Lisa D. Phelan
 

15. Contact telephone number:

00 1 212-4469160





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