A lavatory is provided which includes a plurality of walls including a first wall having a doorway, and an expandable door. The expandable door includes a main panel having dimensions that conform to the doorway and a main hinge connecting the main panel to the first wall. The lavatory further includes a latch. The main panel is configured to, in a deployed state, increase in at least one dimension to form a privacy barrier around an expansion zone located outside of the plurality of walls. The latch is configured to lock the expandable door in place in the deployed state.