The Half Moon Theatre Company was formed in 1972 in a rented synagogue in Alie Street, Whitechapel, in the London Borough of Tower Hamlets. Half Moon Passage was the name of a nearby alley. The founders, Michael Irving and Maurice Colbourne, and the Artistic Director, Guy Sprung, wanted to create a cheap rehearsal space with living accommodation, inspired by the sixties alternative society. The Half Moon Young People's Theatre and Half Moon Photography Workshop were also founded at the theatre.