At the corner of Brattle and Story streets, a series of buildings from the late 1960s held the offices of important progressive architectural firms associated with Harvard's Graduate School of Design. In 1969 Benjamin Thompson established Design Research (now Crate & Barrel, 48 Brattle Street), a store selling quality modern furnishings. Behind Crate & Barrel, connected by a sunken courtyard, The Architects Collaborative (TAC) built their office in 1966. Josep Lluís Sert, then dean of the Graduate School of Design, added his office in 1970 at 44 Brattle Street. And at 44 Story Street, Earl Flansburgh, formerly of TAC, built his office in 1970.