If you join the Friends of West Norwood cemetery for a fiver you can get to go on one of their "tours". The guide will tell you all about all the famous dead folks & you get about 30 - 40 minutes to poke about in the catacombs. Not exactly derelict but can't see anyone claiming any of these boxes or bits of real estate any time soon.
Pics.
Fin.
Full set https://www.flickr.com/photos/infraredd/albums/72157657981270945
Thanks for looking.
Pics.
Fin.
Full set https://www.flickr.com/photos/infraredd/albums/72157657981270945
Thanks for looking.