Wyrm, that's an amazing post-apoc looking building, complete with troll graffiti! Is that a swimming pool out the front?
Yes, it was apparently very popular for skateboarding - although the skaters often had to spend the first half hour clearing the latest junk out of it.
There were all kinds of rumours about the place - the silliest being that the daughter of the family drowned in the pond and her parents wasted away from grief - but apparently it was a riding school that went out of business in about 2002.
Thanks again on the congrats everyone