From a website, translated: "Gaziantep Ağa Mosque, located in the Şehreküstü district of Gaziantep, was built by Tunisian Antep District Governor Ferruh Ağa between 1554 and 1559. The inscription on the mosque contains some information that the Aga Mosque was repaired between 1799 and 1800.

Gaziantep Ağa Mosque, which has a rectangular plan, is divided into six sections by masonry columns. Of these six sections, the dome in front of the mihrab and the two barrels in the west are covered with vaults. Other parts are covered with cross vaults."