PROJECTS 1620 Main St. E. PROJECTS 1120 Ossington PROJECTS YW KW Transitional Housing PROJECTS Earth Sciences & Chemistry Building Third Floor Renovation PROJECTS The Joyce Centre For Partnership & Innovation News In Canada's housing crisis, are modular homes a cheaper and faster solution? - CBC 2025 Joanne McCallum Sustainable Catalyst Award Presented to Mary Georgious New hospital in Grimsby, Ont. to open in October - CBC News Prefabrication, Mass Timber, and Sustainable Construction - "Real Estate Development Insights" Podcast Feature Matt Bolen co-presenting at Passive House Canada Conference 2025 mcCallumSather launches new biennial Earth Day learning series with David Suzuki as first keynote speaker This is what deeply affordable housing success looks like. Can it endure after the election? - Canadian Architect Can homes built in a factory fill Canada’s housing gap? - Canada's National Observer Inside the new children’s hospice that will bring comfort to Hamilton families - The Globe & Mail Seeding Ceremony Celebrates the Start of Construction at 60 Caledon About mcCallumSather is a Canadian-owned, multi-disciplinary team offering architecture, mechanical engineering and interior design. Careers Explore career opportunities in architecture, mechanical engineering and interior design. Latest Projects 1620 Main St. E. 1120 Ossington 215 Wellesley St. 60 Caledon St. Southwest Community Branch Keaton's House 412 Barton Toronto Public Library Centennial Branch The Joyce Centre for Partnership & Innovation Valley Park Community Centre Branch Case Study The Future of Lab Design Case Study A New Net-Zero Standard Case Study Data-Driven Design: A Proven Study