The central court is 32·70 metres from north to south and 27 metres from east to west. It is surrounded to east, north, and west by a blind arcade which forms part, on the north side, of the façade of the three-storied block (Plate 6, Fig. 2). The arcade is 1 metre deep. Engaged half-columns set against rectangular piers carry shallow calottes, the archivolt of which is slightly horse-shoed (Plate 26, Fig. 1). The intercolumniation varies from 2·35 to 2·55 metres. All the details were of stucco, which has now broken away. The columns, piers, and walls are of stone masonry; the capitals, calottes, and archivolts, together with the wall above them, are of brick. The capitals, which are much damaged, are cubes formed of three courses of bricks; the calottes are of brick laid in horizontal courses and carried over the angles of the niches by horizontal brackets; the horse-shoed archivolts are composed of an inner ring of brick tiles laid horizontally, and an outer ring laid vertically. Of the outer ring only fragments remain. In one case (the calotte immediately to the south of the east door) the tiles are laid in rings, and the curve of the archivolt is not horse-shoed (Plate 26, Fig. 2). The corresponding calotte on the west side has fallen. In the centre of each calotte, and impinging upon the stonework below, there is an oblong window which lights corridor 28. On the north side of the court only two of the niches and calottes remain intact to the east of the central door, and only one to the west of the central door. In the centre the whole face of the wall has fallen, carrying with it parts of the corridors on the first floor and part of the south wall of the great hall. The small chamber, 27, which was probably covered with a dome, is entirely ruined, together with room 101 above it. It is therefore impossible to determine the exact form of the doorway which led from 27 into the central court, but there is no reason to suppose that it differed materially from the door on the east side of the court. The nature of the horizontal decorations which govern the façade preclude all idea of a large central door. The blind arcade of the first floor is not so high as the arcade below it (Plates 27 and 85). Instead of the half-columns and piers of the ground floor, the archivolts of the first floor spring from a cluster of four small engaged columns which must have been finished in stucco. Nothing remains of the capitals. In the spandrels are placed oblong windows lighting the upper corridors, 100 and 102. On the face of the pointed arches of the arcade it is still possible to trace a scolloped ornament in plaster, like that which exists over the doors of the mosque. Within the large arches there is a system of small blind arched niches flanked by slender engaged colonnettes of which little trace remains. There are five of these niches within each of the large niches, two below and three above, the central niche in the group of three being the largest.