Hi Adam,
I'm not too far from you (Ashtead), and like you I am looking for local flying sites. I am a member of Green Dragons which has a site in Woldingham, but they have a rule about not flying on your own which can makes things tricky. I love this sport but unfortunately without access to a local flying site it becomes a challenge just to get into the air.
Where are you doing your training?
Gareth