As far as I know the Daws Hill base was always called RAF Daws Hill. It is built above a WWII bunker (which was maintained through the Cold War) and until last year (2007) was a NATO base housing admin functions of many nationalities' military including Canadian navy & military logistics, and the US forces' London Central High School.

Daws Hill base security is provided by UK Military Police.

The High School closed last summer (2007) and I believe the US is no longer represented there.