 He returned to theatre design at the behest of director Harold Clurman, who saw his show and asked him to design his 1959 Broadway production of George Bernard Shaw's "Heartbreak House".He actively worked in New York for the next fourteen years.In 1973, Wittop retired to Ibiza, where he remained for eleven years before returning to New York to work on two more projects before settling in Tequesta, Florida.