Blocklisting Interim Review

Great Portland Estates PLC
05 December 2007




                      BLOCKLISTING SIX MONTHLY RETURN

INFORMATION PROVIDED ON THIS FORM MUST BE TYPED OR PRINTED ELECTRONICALLY.


To:     The FSA

Date:   5 December 2007     


1. Name of applicant:  Great Portland Estates plc


2. Name of scheme      Conversion of 5.25% Convertible Bonds 2008


3. Period of return:   From 5 April 2007     To 5 December 2007


4. Balance under scheme from previous return:

164,680


5. The amount by which the block scheme has been increased, if the scheme has 
been increased since the date of the last return:

-


6. Number of securities issued/allotted under scheme during period:

3,225


7. Balance under scheme not yet issued / allotted at end of period

161,455


8. Number and class of securities originally listed and the date of admission

18,709,678 Ordinary 12.5p shares
7 October 2005


9. Total number of securities in issue at the end of the period

181,023,034


Name of contact

Desna Martin


Address of contact

33 Cavendish Square
London
W1G OPW


Telephone number of contact

0207 647 3093


Signed by

company secretary,
for and on behalf of

Great Portland Estates plc
Name of applicant


If you knowingly or recklessly give false or misleading information you may be
liable to prosecution.




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