fauxcade

when the front of a building (let's say usually an apartment complex or a house that is now a rental property) is designed to look imposing or grand when viewed head on, but when viewed critically the rest of the building doesn't live up to the first impression.

Sure, the place I thought about renting had a nice fauxcade with decorative window guards, brickwork, flashy cornices, and elaborate drainspouts, but the sides of the place were covered in cheap, cracked vinyl siding.