Hey all! I've put together a rough layout of the Weasleys' shop and the flat above. The flat is rather large and has a good-sized attic that has been turned into spare rooms and a lab.
Ginny has laid claim to the spare room in the attic that's farthest from the lab (smart girl). Which leaves one extra room, in case Ickle Wonniekins ever needs a place to hide out... :P