According to the inscription above the entrance, it was built in 1391 by Ahi Yakup. It is located in the İsmetpaşa neighborhood of Altındağ. The mosque, which has a rather simple structure, is accessed via a staircase leading to the last prayer area. Its mihrab is made of plaster and bears the inscription of the Kalima-i Tawhid (Declaration of Faith). Situated on a sloping terrain in the İsmetpaşa neighborhood, the mosque is accessed via an 11-step staircase from the east facade. It is a simple structure built of adobe on a stone foundation, with a tiled roof. Notable for its mihrab, typical of 14th-century Ankara mosques, this mosque is among the places of worship worth visiting.