The İmaret Mosque, located in Karaman city center, was built by İbrahim Bey, the second of Karamanoğlu, in 1451. The deed of trust of the mosque’s foundation dated 1431 has set up strict rules that drew the boundaries and purposes of the intended usage of the built. According to this deed of trust, all people in need were entitled to meet their needs for free and this purpose was guaranteed by those strict rules. Built to serve multi-functional, it has two floors, four iwans and a closed courtyard. It is completely made of ashlars. Marbles were also used in the portal and colored stones on the minaret and the entrance door. On the portal and minaret, ornaments with muqarnas were utilized. It is a beautiful and worth seeing masterpiece as the wooden door wings of the entrance door and vaulted rooms are the most popular examples of Karamanoğlu woodwork in the XV. century.