There is the concept of designer ugliness, some might call it derelict, a celebration of the mess and the dirt and the crumbling nature of very old concrete. Some might whack a neon sign on the front, and get your staff to leave their scooter out the front to give the brand some grit some crediablity.
and then there is the actual forgotton, the place left to crumble, more beautiful perhaps, potentially beyond saving, although what is this a shining new drainpipe, could something me happening here?