The structure on southwestern of Süleymaniye Mosque has rectangular plan. Main entrance of the structure built with quarry stone and brick is situated on east.
You can pass from aiwan, which is bond of brickwork and mirror vault, to court. At opposite of the entrance with bond of brick, separated by a single line of four columns and had lighting point at middle of the ceiling, there is a close space. It is supposed that the space was used as barn or depot. There are nine boxes with depressed arch at the long edges of the court.