Brooklands
CORRECTION-
Brooklands have asked me to make it clear that the collision with Vimy and vehicle was a car not a tractor as I misunderstood, a few years ago ( I can't help thinking that's even worse but what the hell ...) and the Vimy has not been evicted, just told to leave for a little while or find somewhere else.
As various people have mentioned, there are plenty of 'Brown Field' places to fit houses in, while Dunsfold is unsuitable A; as an object of history,
B; as it is still a very useful airfield, C; as the local roads etc couldn't handle a town there !