An aircraft lavatory monument, comprising: a first compartment including a first toilet, a first sink, and a first door providing access to the first compartment from an aisle of the aircraft; a second compartment proximate the first compartment, the second compartment including a second toilet, a second sink, and a second door providing access to the second compartment from the aisle of the aircraft, wherein the second door is aligned in a first vertical plane with the first door, the second toilet is aligned with the first toilet at a lateral position spaced apart from the first vertical plane; and a movable wall comprising a first panel and a second panel, the movable wall disposed between the first compartment and the second compartment, the movable wall including a first panel hingedly or slidably connected to a second panel, a means for releasably securing the first panel into a first position separating the first compartment and the second compartment and providing privacy therebetween, a means for pivoting the movable wall about a fixed axis into the second compartment, thereby allowing the first compartment and second compartment to jointly form an enlarged bathroom space configured for use by persons with reduced mobility, wherein the means for pivoting comprises a hinge mechanism connecting the first panel opposite the toilets between the first door and the second door and a means for releasably securing at least one of the first panel and the second panel within and with respect to the second compartment. a first compartment including a first toilet, a first sink, and a first door providing access to the first compartment from an aisle of the aircraft; a second compartment proximate the first compartment, the second compartment including a second toilet, a second sink, and a second door providing access to the second compartment from the aisle of the aircraft, wherein the second door is aligned in a first vertical plane with the first door, the second toilet is aligned with the first toilet at a lateral position spaced apart from the first vertical plane; and the second door is aligned in a first vertical plane with the first door, the second toilet is aligned with the first toilet at a lateral position spaced apart from the first vertical plane; and a movable wall comprising a first panel and a second panel, the movable wall disposed between the first compartment and the second compartment, the movable wall including a first panel hingedly or slidably connected to a second panel, a means for releasably securing the first panel into a first position separating the first compartment and the second compartment and providing privacy therebetween, a first panel hingedly or slidably connected to a second panel, a means for releasably securing the first panel into a first position separating the first compartment and the second compartment and providing privacy therebetween, a means for pivoting the movable wall about a fixed axis into the second compartment, thereby allowing the first compartment and second compartment to jointly form an enlarged bathroom space configured for use by persons with reduced mobility, wherein the means for pivoting comprises a hinge mechanism connecting the first panel opposite the toilets between the first door and the second door and a means for releasably securing at least one of the first panel and the second panel within and with respect to the second compartment.