The Singar Mosque (Bengali: সিঙ্গাইর মসজিদ) is a Sultanate mosque that has a square structure crowned with a single dome. The mosque is situated on the side of the Bagerhat-Khulna Highway, about 200 meters (660 ft) south-east of the Sixty Dome Mosque. It’s a 15th-century mosque which is an element of the Mosque City of Bagerhat, a World Heritage Site in south-western Bangladesh. It’s a single-domed, square building of exposed brick with terracotta decorations. The Historic Mosque City of Bagerhat is very important evidence of medieval cities within the south-west part of present Bagerhat district which is found within the south-west part of Bangladesh, at the meeting-point of the Ganges and Brahmaputra rivers. The traditional city formerly referred to as Khalifatabad sprawls over on the southern bank of the old river Bhairab and flourished within the 15th century BC. The magnificent city, which extended for 50 km2, contains a number of the foremost significant buildings of the initial period of the event of the Muslim architecture of Bengal. They include 360 mosques, public buildings, mausoleums, bridges, roads, water tanks, and other public buildings constructed from baked brick. The mosque (Singar Mosque) has no inscription by which it is dated. Experts believe, supported the known ages of stylistically similar local buildings that it absolutely was in-built the mid-15th century. There’s archaeological evidence that at just the once the mosque compound was surrounded by a wall with towers at the corners and an entrance gate on the east.
The Singar Mosque is a square of 43’9″ x 43’9″ externally while internally it has a square plan of 26’0″ x 26’0″. The structure is a single chamber, roofed over by a hemispherical dome. The eastern façade has three arched openings to the prayer hall while the northern and southern façades have a central opening. The mihrab is aligned with the central entrance at east and the central portion of the qibla wall is projected westward from the ground to the roof. Stylistically this kind is known as Khan Jahan Ali architecture, commonly found in and around the south-western part of Bangladesh. The mosque’s walls are 7 feet (2.1 m) thick. It is flanked by two decorated octagonal pilasters from which springs a multifoil arch with terracotta rosettes in the spandrels. All these are bordered by two rectangular frames, the space between which is filled with a four-petalled mesh in terracotta. To each side of the mihrab is a multifoil arched niche in a rectangular recess. The north and south walls each have two similar, but smaller niches. Squinches spring from brick pilasters to support the base of the dome. The mosque was thoroughly restored and repaired by the Department of Archaeology, Bangladesh and it is now a protected monument.