A co-founder and principal of the firm, Les holds a Master of Architecture degree from the Massachusetts Institute of Technology (MIT).

Les takes a problem-solving approach to architecture and is able to envision a range of solutions to every challenge. His work in master planning innovative urban residential developments, the adaptive reuse of existing structures, broadcast facilities and dynamic environments for ideas-based entrepreneurs has been at the heart of the Studio's growth and success. In 1994, Les was inducted into the College of Fellows of the Royal Architectural Institute of Canada and received the Order of Da Vinci Award from the Ontario Association of Architects in 2015. He has served on the OAA Complaints and Discipline Committees, represented Southwest Ontario on the National Board of Directors of the RAIC and is the Immediate Past Chair of ULI Toronto. Les also holds the position of BDP Quadrangle Studio Head, and in this role he oversees progress of the firm's strategic plan and maintains regular communication with the executive of BDP.

photo of Les Klein

Street festival at 299 Queen West at night.
angled glazed façade of an ONroute Service Centre.
Façade of The Jack.
rendering of the adaptive reuse Bata Shoe Factory project refurbishment into residential apartments