Shhhh! Don't tell John Prescott!
Had a look at Croydon Council's website as Kenley Common should be under their remit, but it's not listed... odd that... Ah no it isn't, it belongs to the City of London.
I'm glad to hear that it will be retained as common land and a gliding site - though how much are you willing to bet that it won't be reconsidered at some stage in the future?
Incidently, full marks to those who maintain all the commons in the area - they are superb!