Built in the early 20th century as a foundation work, Polatlar Mosque is located on Sedirler Street. Built of masonry mudbrick, the building has a rectangular plan. The harim part of the building, which is divided into three pitches perpendicular to the mihrab wall with wooden poles, is designed as a women's mahfil above the entrance part. The part of the women's mahfil in the center of the harim has a semicircular protrusion from the façade, adding an aesthetic touch to the interior. The harim section is covered with a flat ceiling covered with wood veneer and the building is covered with a hipped roof from the outside. The building has a transverse rectangular plan and a single-volume last congregation carried by five wooden poles. To the northeast of the last congregation, there is a minaret with a single balcony. In the interior of the mosque; there are geometric and floral ornaments with late Ottoman characteristics on the arches connecting the wooden poles, ceiling cores, mihrab and pulpit parts.