Quantic house, grows bigger as there is more people to live in... İ don't know if "quantic is the right term", but İ know someone who had this kind of house... Was funny when he sold it, the buyer helped my friend to move and the house shrunk to be as little as a baby cradle... Then he put his things in the house, making it bigger and bigger, and then he could live inside... Sometimes İ smile when İ think to it...
So it's quite like a Tardis, who grows rooms for each new inhabitant...