PROJECTS Earth Sciences & Chemistry Building Third Floor Renovation PROJECTS The Joyce Centre For Partnership & Innovation PROJECTS YW KW Transitional Housing PROJECTS Gage Park Greenhouse PROJECTS The Ballroom Bowl Yorkville News Liz Gabaldo and Henry Dowling Discuss Flooring at Yorkville's Ballroom Bowl with Coverings mcCallumSather announces key team advancements to start off 2025 Lab Design for the Future: Balancing Flexibility, Sustainability, and Collaboration mcCallumSather joins Element5 to present at the 2025 Wood Solutions Conference in Ottawa Joanne McCallum Nominated for Lifetime Achievement at YWCA Women of Distinction Awards The Liberian Learning Centre Celebrated Its Grand Opening on December 13 Pioneers of Purpose - mcCallumSather Featured on the Cover of Award Magazine's December Issue mcCallumSather and RDH Building Science Present at The Buildings Show New Renderings for Toronto Public Library's Centennial Branch Joanne McCallum Announces Retirement, Reflects on 28 Years of Leadership in Sustainable Design 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 Toronto Public Library Centennial Branch The Joyce Centre for Partnership & Innovation Valley Park Community Centre Branch 1620 Main St. East B1/B1 Lab Renovations Validation, Prototyping and Manufacturing Institute The Ballroom Bowl Yorkville Customer Experience Centre Gage Park Greenhouse Glove Box Office Redevelopment Case Study The Future of Lab Design Case Study A New Net-Zero Standard Case Study Data-Driven Design: A Proven Study