>>2457338that has never happened to me. it's pretty obvious; boarded up windows, holes in rooves, overgrown, no cars parked nearby, roads clearly disused/overgrown. also once you know the location you can usually find out some info about it, what it used to be, and especially if it's in an industrial area, it's not going to be a cow shed, it's going to be some disused factory.
some satelite maps have an angled view at a close up zoom level too.