With a very uniform appearance, the college´s four façades are characterized by the vertical shapes culminated in false catenary arches.Gaudi planned a building of rectangular ground plan, with a ground floor, three floors and an accessible roof. On the façades, he bordered stone walls with courses of brick and broke up the continuity of the windows with two attached central bodies: the portico, on the main façade, and the domestic service area, at the rear. the crenellations that top the façade and the pinnacles that decorate the towers on the four corners give a medieval air to the work, reinforced by the mudejar lattice work on the portico and the vertical lines of the main windows.