Great Portland Estates PLC 23 January 2007 Pricing of New Debenture Issue Following the announcement on 20 December 2006, Great Portland Estates plc has priced a new issue of £50 million nominal of its 5.625 per cent First Mortgage Debenture Stock 2029. The new issue has been priced at 105.262 per cent representing a yield to maturity of 5.22 per cent, a spread of 75bp over the yield on the 6 per cent Treasury Stock 2028. The issue was underwritten by Barclays Capital and The Royal Bank of Scotland for settlement on 31 January 2007. Contacts: Great Portland Estates plc Timon Drakesmith Tel: +44 (0) 20 7647 3034 Barclays Capital Jeremy Froud Tel: +44 (0) 20 7773 9634 The Royal Bank of Scotland Robert St John Tel: +44 (0) 20 7085 3205 UNDER NO CIRCUMSTANCES SHALL THIS NOTICE CONSTITUTE AN OFFER TO SELL OR THE SOLICITATION OF AN OFFER TO BUY OR SUBSCRIBE FOR SECURITIES. This information is provided by RNS The company news service from the London Stock Exchange