PROJECTS Kitchener Public Library Southwest Community Branch PROJECTS 1620 Main St. E. PROJECTS 1120 Ossington 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 Construction underway for Keaton's House Children's Hospice Kitchener Public Library Southwest Community Branch Wins 2025 Great Places Award Liberian Learning Centre Featured in "150 Libraries You Need to Visit Before You Die" 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