Oh, and the laundry may simply been one section of one old, rambling room too. The old farmhouses I've been in have a series of sections in their kitchens, perhaps separated by a step down, narrowing or widening of one section of the room or a 'hole in the wall' type section.
Each of these sections have names which suggest they're rooms: the laundry, the dairy, the scullery and so on, when in fact the feeling that there are separate rooms is a bit of an optical illusion.