PROJECTS Kitchener Public Library Southwest Community Branch PROJECTS 1620 Main St. E. PROJECTS 1120 Ossington News As market shifts, developer plans new data centre - The Globe and Mail Drew Hauser and John Peterson to Present RAIC Live Webinar on Sustainable Design Modernizing Mid-Century Research Buildings - Lab Design News St. Matt’s celebrates opening of affordable apartments - Hamilton Spectator Integrated Design in Life Sciences: Liam Brown & Mary Georgious on NGBiPlus Podcast New Barton St. modular housing opens for at-risk Black, Indigenous seniors - CHCH News mcCallumSather unveils Waterloo Region’s first net-zero community building - Canadian Architect mcCallumSather Unveils Modernized, Collaborative Research Hub in Reimagined 1960s ESC Building 1620 Main St. E Receives Chief Planner Award at Hamilton Urban Design & Architecture Awards 2025 William Neal joining Stok as panelist at IPDA Conference 2025 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 Nassagaweya Farm Gakina Awesiinyag Earth Sciences & Chemistry, Level 3 Biindigen Well-Being Centre Southwest Community Branch 1120 Ossington 1620 Main St. E. 60 Bowden Henry's on James 215 Wellesley St. Case Study The Future of Lab Design Case Study A New Net-Zero Standard Case Study Data-Driven Design: A Proven Study