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We are Affecting Change Inc., one of Canada's foremost boutique sustainable design consulting firms.

Our founder, Sandra Leigh Lester is an expert in advanced green building design and holistic health. Sandra's sustainable design experience spans over three decades and four continents with her projects winning over seventy prestigious awards.

Sandra’s is a passionate renovator and her desire is to help make getting a green home easier for homeowners like you.

As a leader in her industry, Sandra holds a professional design certification and is both Certified Sustainable Building Advisor, and a Certified Passive House Designer.

But you are getting overwhelmed by the idea of managing it.Where do you start?How do you hire first?How many square feet do you build?

But you are getting overwhelmed by the idea of managing it.
Where do you start?
How do you hire first?
How many square feet do you build?