The buildings of the complex are constructed entirely of mud bricks, the standard building material of the Iranian plateau (see Fig. 3, in plate section). At present access to the compound is via three entrances located on the northern side. The adjoining court, the khāniqāh, has a two-storey facade. There were originally four īwāns, but the east and west ones have been transformed into two storeys of niches. The presence in the middle of the court of a kalak (a low hexagonal platform on which fires were kindled in winter; see Afshār, Wāzhah-nāmah, 139) suggests that this screened cour…