The perspective seems fine. Your shadows are a bit off, the light source is coming from the top left, but the solar panel on the roof has a shadow from a light source directly above, also the building itself doesn't have shaded walls.
Try colouring the edges (outline) of the middle of the building a light colour to give it more depth. Uh it's kinda hard to explain.
One other thing, because the wall with the wire finishes at the base of the building and because it has no texture, it looks a little bit like it's the footpath lying flat and the wire fence is sitting at the bottom of the building. I'd say give it some texture and/or raise it up or lower it a bit.