Stowable module airplane lavatory

A stowable module, i.e., a storage container, that provides storage space in the airplane without occupying revenue floorspace. The stowable module comprises an integrated feature of a sidewall lavatory. The stowable module stows inside a sidewall lavatory during ground, takeoff, and landing operations. During flight, the stowable module is deployed by a flight attendant into an adjacent doorway area so that the lavatory can be used by passengers and crew.