After years of complaints from neighbors and revelations of animal cruelty, the collection of decrepit trailers that once passed for a stable here was torn down and hauled away in 2008 after the city discovered that it was actually sitting on DOT property.
A very strange, shifty-eyed shirtless man (the former proprietor of this fine establishment?) pulled his car into the driveway while I was walking around; he told me that the place still operates as a stable. That seems quite unlikely, given the information above, but perhaps he was referring to the couple of trailers parked on a small patch of dirt on the far side of the house.
UPDATE (Sept. 21, 2012): One horse still lives here!
UPDATE (Dec. 28, 2014): The owner and another guy live here too!
UPDATE (Apr. 29, 2015): NY Times — "A Squatter’s Last Stand at a Condemned Bronx Barn"