It's a style of house down here in New Orleans and the south. Basically a side by side duplex where the doors to the rooms are lined up so as you could fire a shotgun at the back door from the front door and not hit any walls. That is how it was explained to me. Hehe
Who's There? Naw, too easy! Very Cool! I like the look! There was a place called (fuzzy wobble memory fade) Constantines that sold moldings, inlays and appliques.