In England, Kaplický first worked for Denys Lasdun and Partners (1969–1971), then obtained employment with the office of Renzo Piano and Richard Rogers (1971–1973), where he worked on DRU extension at Aybrook Street, London and later helping to develop the design for the Centre Georges Pompidou (constructed 1971–1977) in Paris by joining the team of more than 30 strong. When the practice relocated to Paris, he was unable to follow as at that time he still did not have a British passport. After working with Jiřičná, and a short spell at Spencer and Webster, Associates (1974–1975), he joined Foster Associates, now Foster and Partners (1979–1983).