The second phase saw the opening of several new galleries adjacent to Beverley Street in 1977. The third phase of expansion planned by the museum was delayed until August 1986, when it announced a competition for Ontario-based architects to design the museum's southwest, and northern extension on Dundas Street to cover the "temporary facade". A seven-member panel eventually selected a design by Barton Myers. The architectural firm KPMB Architects was contracted to complete the expansion, which opened in 1993. The expansion in 1993 saw of new space built, and the construction of 30 new galleries. After the expansion and renovations in 1993, the museum complex had approximately of interior space.