Safdie graduated from McGill University, with a degree in architecture, in 1961. After apprenticing with Louis Kahn in Philadelphia, he returned to Montreal to oversee the master plan for Expo '67. In 1964, he established his own firm to undertake Habitat '67, an adaptation of his McGill thesis. Habitat '67, which pioneered the design and implementation of three-dimensional, prefabricated units for living, was a central feature of Expo '67 and an important development in architectural history. He was awarded the 1967 Construction Man of the Year Award from the Engineering News Record and the Massey Medal for Architecture in Canada for Habitat '67.