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 Joanne McCallum Announces Retirement, Reflects on 28 Years of Leadership in Sustainable Design Designing Sustainable Labs: mcCallumSather's Collaborative Approach Success Stories in Sustainability from the World of Community Housing: Matt Bolen joins Pivot Tech mcCallumSather presents at Carleton University's SHOP | TALK Career Fair Fast, prefab and affordable on Ossington Avenue - The Architourist, Globe and Mail The Ballroom Bowl Yorkville wins Canadian Interiors Best of Canada Award mcCallumSather Welcomes Greg Latimer and Ian Huff to the Team, Establishes Toronto Office The Future of Lab Design: Achieving Modernity Without Compromise Canadian Consulting Engineer Conversation: Engineering net-zero libraries Canada can tackle affordable housing by scaling what works 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