Yes I live in London sort of, but I am no fixed abode so move around a lot. Sometimes I go over to Richmond and sometimes over to Croydon for a while. I used to live in a squat in Southwark but it became so derelict and in disrepair I left it.
Squatting is very difficult now because empty buildings are so well boarded up with steel panels and often have security on the premisis as well. Years ago all there was was corrigated iron over empty buildings.
By the way how about building eco camps in London. There are loads of areas of overgrown woodland and derelict land in the capital. Back in 1996 I stayed on an eco camp next to Wandworth Bridge organised by The Land is Ours a campaign group from Oxford. Wandsworth eco village. 1996.