Holding(s) in Company

Great Portland Estates PLC
20 December 2004



LETTER TO:  RNS

Today, we have received notification that ABP Investments holds 6,563,795
ordinary shares of 12.5p each in this Company, representing 4.04% of the issued
share capital of the Company.

A copy of their notice is attached for you information.

LETTER FROM:  ABP INVESTMENTS



TO:  GREAT PORTLAND ESTATES PLC


RE:  Notification of shareholders interest


Hereby we report our position in ordinary shares of Great Portland Estates plc.

Beneficial owner:
Stichting Pensioenfonds ABP
Oude Lindestraat 70
6411 EJ Heerlen

ISIN GB00B01FLL16     6,563,795  shares

FROM:  ABP INVESTMENTS


                      This information is provided by RNS
            The company news service from the London Stock Exchange