In Germany a phenomenon exists which is called „Doppelhaushälfte“. It literally translates into „half of a double house“. Funny that, because if you think of it the half of a double house should still be a house and not just one half of it. I don´t even know if „Doppelhaushälfte“ does exist in other countries because it really doesn´t make much sense, does it? As to prove my point people in a „Doppelhaushälfte“ do everything to make sure that their half of the house is a separate „house“ and easily recognizable as such.