Did you mark out side the actual house With the yard as well or just the house? Also it might help to set the base of house -1 of what ever the house bottom z level is. Like if you find the ground outside house to be at z 0 then type in the town house jump -1 z. Hope that helps haven't done the townhouses in a while. Let me get all my stuff in my personal shard and I'll add townhouses see what I come up with.