"Peter Heather" wrote

Actually it was 1965. And I'm not sure it was that much of a surprise.
Further east, Caterham and Warlingham UDC succesfully campaigned to be
left out of Greater London, only to be swallowed up into the
ridiculously named Tandridge District in 1974. Pity really as I would
be entitled to a Freedom Pass by now and our roads would be maintained
to a higher standard than the pathetic Surrey County Council manage.

Knockholt was put into Greater London in 1965, and managed to get out in
1974.
Ob rail - Knockholt station is not in Knockholt, but (just) in Greater
London.

Peter