The Nuffield Transplantation Surgery Unit (1963) at Edinburgh's Western General Hospital was "the first experimental building specifically designed for the transplantation of human organs." Other healthcare projects included an admissions unit for Haddington District Asylum (1963), now the Garlton Unit of Herdmanflat Hospital, and a GP's practice in Kelso. Collaborating with engineers Ove Arup, he designed a stadium for Gala Fairydean F.C. (1963), incorporating cantilevered structures of board-marked concrete to create the effect of a floating canopy. In 1969 he designed a studio for Bernat Klein, adjacent to High Sunderland. Strongly reminiscent of Frank Lloyd Wright's Fallingwater, the studio remains Womersley's best-known building, and was nominated as one of Scotland's 100 "Treasured Places" in 2008. The same year he was commissioned to design an extension to Edinburgh College of Art, but his highly articulated proposals were rejected. Later designs include the "sculptural" boiler house at the former Melrose District Asylum, and Monklands Leisure Centre in Coatbridge (both 1977). High Sunderland, the Bernat Klein Studio and Gala Fairydean Stadium are now protected as Category A listed buildings, the highest level of protection for a building in Scotland of "special architectural or historic interest". In addition, The Rig and the Garlton Unit in Haddington were listed at Category B in 2007. In England, Farnley Hey is listed at Grade II by English Heritage.