A co-founder and principal of Quadrangle, 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 Quadrangle’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 and represented Southwest Ontario on the National Board of Directors of the RAIC. In 2018, he was named Chair of ULI Toronto.

Contact Les
photo of Les Klein
Street festival at 299 Queen West at night.
Façade of The Jack.