Colnbrook Stationmaster's HouseTQ0376 : Site of Colnbrook station, 1986TQ0376 : Poyle: Site of former Colnbrook railway stationDescription and photographs at
http://www.disused-stations.org.uk/c/colnbrook/index.shtml confirm that the house in these two pictures is the former stationmaster's house, the sole survivor of the station once present a few yards further north. This site also gives more detail about the whole of the railway line and its history.
John Webb