About Us

Founded in 2010, we are health and sustainablity strategists for the built environment.


We know how to create healthy buildings. We know how to create efficient buildings. Most importantly, we know how to guide you and your design teams using cutting-edge transformation and change management strategies.


We know LEED for New Construction, Core and Shell, and Commercial Interiors. Affecting Change Inc. has worked on the LEED certification of the following projects: Government of Canada Building Charlottetown; Peter Lougheed Center; King Abdullah University of Science and Technology; several CIBC Corporate Offices Fitouts and Branches; Honda Head Office in Markham; Kipling Acres Retirement Phases I and II; and Virginia Park Elementary School in St. John’s Newfoundland.


We are corporate members of the Canada Green Building Council. Our work goes beyond LEED consulting. We use proprietary organizational development tools to help our clients realize their true objectives and goals then we determine ways to measure that success. What’s that really mean? We find out what you need and what you want and help you get surprisingly exceptional results.

Our Founder

Project Team Lead Sandra Leigh Lester BTech MCOD LEED AP BD+C CSBA, is the Founder, President and CEO of Affecting Change Inc. and personally leads the team on each project. She has 25 years of sustainable design experience in fields of corporate office, residential, retail, mixed use, hospitality, and healthcare sectors and eleven years of sustainability consulting experience

For over two years, she was the in-house sustainable design consultant for HOK Architects Corporation, working nationally, across Canada, and on projects in the Middle East. She was on the international HOK Carbon Task Force and contributed to the development of the Life Cycle Analysis section of the GSA Handbook.

Sandra has a Bachelor of Technology in Architectural Science. Her desire to enable transformation lead her to the achievement of a Certificate in Change Management and a Masters Certificate in Organization Development from Schulich Executive Education Centre.

Sandra is a LEED® Accredited Professional with a specialty in Building Design and Construction (LEED AP BD+C). She is not only a Certified Sustainable Building Advisor (CSBA) but was chosen by the CaGBC to lead the certification course in Toronto.

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