Lat Ki Masjid become constructed through Firoz Shah Tughlaq, is a unique instance of Tughlaq architecture. The mosque is a combination of structures, L-shaped ablution tank and a Lat. The mosque is constructed partly of crimson and buff sandstone and in part of rubble masonry having thick plaster. Possibly extricated from destroyed Hindu temples, the stone pillars with floral and geometrical designs engraved on them help the main arched openings of the mosque.
The major prayer corridor has 9 bays including arches supported on pillars. It has a carved qibla and a pulpit in the western wall. Within the courtyard inside the north-east, there is a Lat and the mosque is known as after it. The Lat, fabricated from sandstone, is a part of an Ashokan pillar. A few letters in Mauryan Brahmi script may be visible at the pinnacle, at the same time as in the decrease element, names of a few people/pilgrims had been inscribed on a next date.