The buildings around the West Service Gate, to the north of the Mappin Terraces, derive from a 1950 plan for a new service complex that was incorporated into the 1958 redevelopment scheme prepared under Sir Hugh Casson. They were the first part of this scheme to be executed as the shifting of supply and works functions from the Middle Gardens to this site made space available for the Cotton Terraces. Built 1951 and 1958-60, Franz Stengelhofen, architect. (Services Building and Garage, 1960. Works Department, 1958-59. Boiler House, 1951; Incinerator added 1959, replaced 1982.