Inspiration realized

Les Klein

Principal and Co-founder, M. Arch., OAA, AAA, AIBC, MAA, NSAA, AANB, FRAIC, Associate AIA

Les is committed to the idea that urban design, city building and architectural excellence all play vital roles in enhancing the quality of community life.

With a Master of Architecture degree as well as two BSc degrees (in Arts & Design and Mathematics) from the Massachusetts Institute of Technology, he brings a disciplined problem-solving approach to every new architectural challenge, proposing solutions attuned to each client’s unique needs and aspirations.

Les has helped shape Quadrangle’s success through his work in innovative master plans, mixed-use projects and multi-family residential developments, the adaptive reuse of existing structures and the creation of dynamic environments for ideas-based entrepreneurial companies, including broadcast and media facilities. He is a frequent speaker at professional conferences, and volunteers in many capacities both in the general community and the development industry, including the Toronto chapter of the Urban Land Institute.  He has also received international attention for the Green Ribbon, his audacious proposal to build a seven kilometre green roof and park over Toronto’s elevated Gardiner Expressway.  He was inducted into the College of Fellows of the Royal Architectural Institute of Canada in 1995, and has served on the RAIC National Board of Directors since 2011. He was elected a member of the Simcoe Chapter of Lambda Alpha International by his peers, and in 2015, he received the prestigious Order of Da Vinci Award from the Ontario Association of Architects. 

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