A lavatory monument assembly that includes an enclosure having at least a front wall and that defines an enclosure interior, and a divider wall that extends rearwardly from the front wall. The divider wall includes a divider door that is movable between closed and open positions. In the closed position the divider door divides the enclosure interior into a first lavatory interior and a second lavatory interior. The front wall includes a first and second lavatory doors that are each movable between closed and open positions and provide access to the first lavatory interior and second lavatory interiors respectively. The front wall also includes a vertically extending center post. The second lavatory door is hingedly connected to the center post, and the center post and the second lavatory door are slidable to a stowed position when the second lavatory door is in the open position.