A friend of mine lived in a house that was abandoned by one of his aunts. It was a large ancient house with 7 bedrooms. Once I visited him and called his attention to the thick lyers of dust, garbage of every kind and cigarette ashes all over the floor, then he explained to me: " Oh, yes, I'll move tomorrow to the next bedroom. Really, this is already dirty".

Dettachable rooms ! Could it be the solution ? :)

Un abrazo - Andrés