Abstract: “The Fold Up Dormitory” is intended for use in situations where living and working quarters for a small or large number of people are required on short notice or irregular intervals. The apparatus is made of wood, steel and premanufactured hardware, and comprises components for sleeping, working and storage of small items. It is mobile, simple to operate and offers many options to those who use it. The apparatus comprises: a central core; a pair of folding frames, each pivotally connected to the central core on opposite sides thereof, for rotation about vertical frame-to-core axes of connection; a bed platform pivotally connected to a first side of the central core, for rotation about a horizontal bed-to-core axis of connection; a desk surface pivotally connected to a second side of the central core, for rotation about a horizontal desk-to-core axis of connection; and storage shelving within the central core.