Holding(s) in Company

Great Portland Estates PLC
21 February 2006


Letter to Great Portland Estates Plc

Dated 21 February 2006


Companies Act 1985 ('The Act') - Part VI

I hereby inform you that as at 15 February 2006 Barclays PLC, through the 
legal entities listed on the attached schedule, has a notifiable interest in
the capital of your Company of 3.09%.

Details of this interest, together with a breakdown between registered holders
(as required by Section 202(3) of the Act), are enclosed.

The issued capital of 162,474,812 is the latest figure available to us.  If
this is incorrect please let me know.

If you have any questions arising from this letter, please contact me 
on 020 7116 2913.


From Geoff Smith
     
Barclays PLC




                            LEGAL ENTITY REPORT

GREAT PORTLAND EST                                              SEDOL: B01FLL1

As at 15 February 2006 Barclays PLC, through the legal entities listed below,
had a notifiable interest in 5,017,970 ORD GBP0.125 representing 3.09%
of the issued share capital of 162,474,812 units


Legal Entity                                              Holding     Percentage
                                                                            Held

Barclays Bank Trust Company Ltd                             4,320          .0027
Barclays Global Investors Japan Trust &                   253,334          .1559
Barclays Global Investors Canada Ltd                        9,388          .0058
Gerrard Ltd                                               143,999          .0886
Barclays Global Investors Ltd                           1,931,971         1.1891
Barclays Capital Securities Ltd                           110,481          .0680
Barclays Global Investors Japan Ltd                        16,022          .0099
Barclays Global Investors Australia Ltd                    15,503          .0095
Barclays Global Investors, N.A.                         1,190,684          .7328
Barclays Global Fund Advisors                           1,161,119          .7146
Barclays Life Assurance Co Ltd                            181,149          .1115

                                    Group Holding       5,017,970         3.0884





                           REGISTERED HOLDERS REPORT

GREAT PORTLAND EST                                              SEDOL: B01FLL1

As at 15 February 2006 Barclays PLC, through the registered holders listed 
below, had a notifiable interest in 5,017,970 ORD GBP0.125 representing 3.09%
of the issued share capital of 162,474,812 units.


Registered Holder                                     Account           
                                                  Designation           Holding

BANK OF NEW YORK                                                        12,160
BARCLAYS CAPITAL NOMINEES LIMITED                                      135,181
BARCLAYS CAPITAL NOMINEES LIMITED                                     -625,847
BARCLAYS CAPITAL NOMINEES LIMITED                                      -24,700
BARCLAYS CAPITAL NOMINEES LIMITED                                      625,847
Barclays Global Investors Canada                                         9,388
Barclays Trust Co DMC69    C 000000000000000000                          4,320
BOISS NOMINEES LTD                                  4224361             93,649
CHASE NOMINEES LTD                                  16376               89,341
CHASE NOMINEES LTD                                  28270               53,631
Greig Middleton Nominees Limited (GMI)                                   3,000
INVESTORS BANK AND TRUST CO.                                            34,800
INVESTORS BANK AND TRUST CO.                                         1,122,548
INVESTORS BANK AND TRUST CO.                                             3,771
INVESTORS BANK AND TRUST CO.                                            16,483
INVESTORS BANK AND TRUST CO.                                             1,784
INVESTORS BANK AND TRUST CO.                                             1,360
INVESTORS BANK AND TRUST CO.                                             4,824
INVESTORS BANK AND TRUST CO.                                            29,530
INVESTORS BANK AND TRUST CO.                                             5,227
INVESTORS BANK AND TRUST CO.                                           173,207
INVESTORS BANK AND TRUST CO.                                           837,667
JP Morgan (BGI CUSTODY)                             16331               41,560
JP Morgan (BGI CUSTODY)                             16341               85,958
JP Morgan (BGI CUSTODY)                             16400            1,622,812
JP Morgan (BGI CUSTODY)                             18409              126,169


 

                           REGISTERED HOLDERS REPORT

GREAT PORTLAND EST                                              SEDOL: B01FLL1

As at 15 February 2006 Barclays PLC, through the registered holders listed
below, had a notifiable interest in 5,017,970 ORD GBP0.125 representing
3.09% of the issued share capital of 162,474,812 units.


Registered Holder                                     Account           
                                                  Designation           Holding
JPMorgan Chase Bank                                                       1,312
JPMorgan Chase Bank                                                      10,913
JPMORGAN CHASE BANK                                                      15,503
JPMORGAN CHASE BANK                                                       5,327
JPMorgan Chase Bank                                                      26,440
JPMorgan Chase Bank                                                      59,402
JPMorgan Chase Bank                                                       5,083
JPMorgan Chase Bank                                                      95,785
JPMorgan Chase Bank                                                      22,777
JPMorgan Chase Bank                                                       1,824
JPMorgan Chase Bank                                                      19,571
JPMorgan Chase Bank                                                      21,280
JPMorgan Chase Bank                                                       1,172
Mellon Trust - US CUSTODIAN/                                             12,511
Mitsui Asset                                                              1,919
R C Greig Nominees Limited                                              109,636
R C Greig Nominees Limited a/c AK1                                       15,236
R C Greig Nominees Limited a/c BL1                                        4,310
R C Greig Nominees Limited a/c CM1                                        1,200
R C Greig Nominees Limited GP1                                            3,977
R C Greig Nominees Limited SA1                                            6,640
STATE STREET BOSTON                                                      90,604
Trust & Custody Service Bank                                              1,878

                                                         Total        5,017,970




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