Carleton University: Bachelor of Architecture, 2002

Professional Affiliations

Member: Ontario Association of Architects
Member: Royal Architectural Institute of Canada

Major Projects

Phillips House Redevelopment
Humber College F Building Health Science Addition
St. Thomas Elgin General Hospital

Greg Pattison


Greg joined Montgomery Sisam in 2013, with him a rich and varied portfolio reflective of extensive experience executing custom residential, mixed-use high rise, institutional and recreational projects, as well as international and national design competitions. Greg is experienced in all phases of project development, from conceptual design through to the final stages of construction. 

Leveraging his versatility and broad knowledge base, Greg has since contributed to a number of complex projects including the Humber College Building F addition and renovation, the St. Thomas Elgin General Hospital redevelopment and the redevelopment of Phillip’s House.

Greg also collaborated on the Sheridan College Hazel McCallion Campus Phase 2 and Carleton University Health Sciences Building.

Drawing on his attention to technical detail, creative thinking, problem solving and leadership skills, Greg is committed to ensuring the needs, values and goals of the client, as well as the team, are communicated through thoughtful, meaningful design solutions.