About Us

AFFECTINGCHANGE was established in 2010 to enable change-making organizations to create high performance facilities. These facilities will seek to enable a flourishing future to emerge.

Our clients include architects, designers and agencies working in the “built environment” and change-making organizations that want a high performance facility. We landed on the name, “AFFECTINGCHANGE,” as we are well known for our ability to “affect” how change happens and for revealing the opportunities for making conscientious choices on their projects.

As we help organizations create facilities conducive to mission accomplishment, we conscientiously redesign their environmental impact and reduce their emission footprint.

With projects flung across the globe, we have won more than 75 awards.

Contact us today to learn how you can create the change you want to see in the world.

Sandra Leigh Lester


Founder and CEO


Sandra combines unique technical knowledge with the educational background to effect change management.


Bachelors of Technology in Architectural Science, Ryerson University
Masters Certificate in Organization Development from Schulich


Certificate in Change Management from Canadian Organizational Development Institute
NCIDQ-certified and Registered Interior Designer (ARIDO IDC)
LEED-accredited Professional in Building Design and Construction (LEED AP BD+C)
Certified Personal Trainer Specialist (PTS)
Certified Sustainable Building Advisor (CSBA)

Consultant To:
HOK Architects
Perkins+Will Architects
LAT49 Architects
Colleges Ontario
The Atmospheric Fund
Ministry of Environment and Climate Change
Ministry of Health and Long Term Care
Ministry of Infrastructure 
Humber River Hospital
Shorefast Foundation (Fogo Island Inn)
The City of Toronto
The Government of Ontario
The Government of Newfoundland and Labrador

Aided in the creation of the $500 million Low-Carbon Innovation Fund for the retrofit of College and Universities across the Province.

Teaching Experience

Visiting Professor and Adjunct at the University of Manitoba
Lead Instructor, Certified Sustainable Building Advisor Course, Canada Green Building Council
• Part-time Instructor, University of Technology Sydney (UTS)
• Part-time Instructor, Ryerson University

Let's Work Together

Whether you are looking to renovate your existing building or create a new facility, we can help!

Contact Us