The passage, 137, leads into a gallery, No. 134, which was finished on the east side by an open arcade (Plate 25, Fig. 1). Traces of an engaged column remain at the north end of the arcade, and the vault was constructed with transverse arches in the same manner as the vaults round the ṣaḥn of the mosque. There was, however, no stucco decoration in this upper gallery. At the angles stood quarter-domes over unadorned squinch arches (Plate 25, Fig. 2). The gallery opens at its south-eastern end on to the roof of No. 109. To the south of the gallery there are two narrow chambers, one with a door into the gallery, the other with a door on to the roof of 109. They are almost completely ruined. Dr. Reuther places in them a stair leading by a double flight on to the roof. The main part of the palace, one story high, lies to the south of the three-storied block. Except for a group of rooms in the east side of the yard, which is a later addition, it is symmetrically arranged round a central court. It falls into three divisions: two courts, B and C, with their living-rooms on the east side; two exactly similar courts, G and H, on the west side; a central court with a group of chambers to the south of it, and further south a small court, E, with rooms on three sides of it, and a subsidiary court, D, further east. The long vaulted corridor, 28, which runs from east to west between the great hall and the central court, turns at right angles and runs from north to south between the central court with its chambers and the side wings. It is then carried round to the south of the chambers dependent on the central court, and runs from east to west between them and court E with its chambers.