This is a triangular building in the shape of a flat iron like that heated on a fire or stove (this is earlier by some 20 years than the famous American one in Manhattan).
The area was very fashionable in the 18th century but by the end of the 19th century when this building was erected its social status changed as it became more industrialised. When Hunslet Road (the New Road to residents in the area at that time) was cut through the district in the 1870s to ease congestion on Hunslet Lane, this odd piece of land of 223 square yards was sold by the Corporation.