About Us

Building a Greener Future, One Design at a Time

Since 2010, we’ve been a pioneering force in green building consulting, reshaping possibilities for architecture and design. We not only help you make a space environmentally friendly, but also help you use design as a tool for empowerment. With projects spanning Canada and the US, our passion aligns with the Paris Climate Agreement.

At the core, we believe design can be used to create a better future for humanity. Rather than designs that burden and harm, we help you craft buildings that uplift occupants and communities. This approach will align with your forward-thinking clients’ vision of success.

Dare to dream beyond the ordinary; we transcend ratings and standards. Together, we’ll tap into systems thinking and transformative design, forging a future that empowers us all.

Our approach involves guiding Architects through a transformative design process, bolstered by advanced project management tools and energy modeling. From Passive House insights to sustainable strategy, energy and financial modeling, grant writing, and project management, we’re your partners in progress.

Join forces with us; access our expertise in sustainable design and unwavering commitment to your goals. Together, let’s shape spaces that not only meet your needs but radiate sustainability, sparking a movement.

Ready for a revolutionary journey in sustainable design? Connect today to explore how we can collaborate on a legacy of positive impact.

Sandra Leigh Lester

BTech (ArchSci) MCOD
Director of Sustainable Buildings Consulting, & CEO

She is a nationally-recognized green buildings consultant and has worked on groundbreaking high-performance green building design, deep energy retrofits and community transformation projects across Canada for over 30 years. Her expertise is in diverse areas, including architectural design, interior design, building science, strategy mobilization, and project management.

Credentials include: Bachelors of Technology in Architectural Science, Toronto Metropolitan University; Masters Certificate in Organizational Development and Change Management, York U; Certified Sustainable Building Advisor, LEED-accredited Professional in Building Design and Construction, Certified Passive House Designer.

Key projects include: Boyne River Ecology Centre (Net Zero, 1992); Humber River Hospital (most energy efficient hospital in North America); Colleges Ontario’s Net Zero Plan; Ontario’s GHG Campus Retrofit Program; and TAF Towerwise Prototype Deep Retrofit Project of Seven MURBs on four sites (2021 Clean50 Top Project Award).

Some of Our Past and Current Clients

  • HOK Architects
  • Perkins+Will Architects
  • LAT49 Architects
  • Montgomery Sisam Architects
  • The Atmospheric Fund
  • Ontario’s Ministry of Environment and Climate Change
  • Ministry of Health and Longterm Care
  • Ministry of Infrastructure
  • Humber River Hospital
  • 501 Alliance Developments
  • Fogo Island Inn and Shorefast Foundation
  • The Government of Ontario
  • Salvation Army
  • Centre for Social Innovation
  • Cree Nation of Eastmain
  • Wannabutao Eeyou Development Corporation
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