and were converted into barracks for Navy Wrens. Bletchley Park also established an outpost in surplus buildings on the site, which became known to staff as HMS Pembroke V. A total of 100 Bombe codebreaker machines were used to decode German Enigma messages. The station closed shortly after the war ended in 1945, although the operations from Bletchley Park were re-established on the site in April 1946, under the new name of "Government Communications Headquarters" (GCHQ). Operations continued on the site, including the use of two Colossus codebreaking machines, until GCHQ moved to a new purpose-built site in Cheltenham in February 1954. In 1952, a number of new houses were built by Wimpeys Ltd in Newnham Avenue for the Ruislip-Northwood Urban District Council as part of their "no fines" scheme. The Minister for Housing and later Prime Minister, Harold Macmillan, attended. In 1964, Eastcote House was demolished after it was declared structurally unsafe. The grounds including the walled garden, coach house and dovecote were retained for public use. Haydon Hall had also fallen into a state of disrepair and was demolished in 1967. The RAF Eastcote site was sold for development to George Wimpey (later Taylor Wimpey) in 2007, with plans for the construction of 385 new homes. As of early 2011, 50% of the development had been completed, and the estate renamed Pembroke Park, in reference to HMS Pembroke V, the former name of the codebreaking operation during the Second World War. In November 2011 the public house The Manor was refurbished and renamed "The Ascott", after the owners Greene King Brewery asked for public suggestions for a new name based on the local history of the area. The Case is Altered pub in Eastcote High Road is Grade II listed. Local government Eastcote was in the Ruislip-Northwood constituency until boundary changes at the 2010 general election split the seat into two constituencies, with most of the area becoming part of the Ruislip, Northwood and Pinner constituency, served by Conservative MP Nick Hurd who was first elected in 2005. The constituency is now served by David Simmonds. The remaining parts of the town, areas to the south of the North View/Village Way/Field End Road intersection are in the Uxbridge and South Ruislip constituency, currently served by Boris Johnson, the Prime Minister of the United Kingdom. Localities Eastcote Village is the only named locality on Ordnance Survey maps, on slopes