The plan developed around a rectangular building with four rectangular towers, around an interior courtyard dominated by the chapel on the southeast wing. The spaces are articulated and staggered horizontal floors, covered with different roof tiles, in addition to with six tall chimneys. Each façades is made of granite, masonry block and interspersed by rectangular windows of varying styles: cruciform, stained-glass, standard and oblique. A few of the first floor windows are covered in metal grating. The northwest façade has an arch doorway surmounted by corbels and is recessed from the two towers. The superior floor is a balcony that runs the length of the interior courtyard, supported by corbels, which unite the guard towers. The lateral (northeast and southwest) façades are of a lower height and covered by trim and corbels, that supports the covered balcony, interspersed by openings at floor level. The southwest wing is broken by the body of the chapel, which extends away from the façade (identifiable by two large Flemish stained-glass windows), and is highlighted by a cantilever roof within the courtyard.