Great Portland Estates PLC 09 January 2008 Notice of Interim Management Statement Great Portland Estates plc advises that it will issue its Interim Management Statement for the quarter ended 31 December 2007, including the quarterly valuation, on Wednesday 23 January 2008. Enquiries Great Portland Estates plc: Desna Martin 020 7647 3093 Finsbury Group: James Murgatroyd 020 7251 3801 Gordon Simpson 020 7251 3801 This information is provided by RNS The company news service from the London Stock Exchange