Board of Directors

Sarah Keyes, CPA, CA | Principal


Sarah is a Chartered Accountant (CPA, CA) with over a decade of work experience as a thought leader, consultant and auditor. Before joining ESG Global Advisors as a Principal, Sarah held senior roles at PwC, MNP and the Chartered Professional Accountants of Canada (CPA Canada) working with the energy and mining sectors. She has deep expertise in the business and financial impacts of Environmental, Social and Governance (ESG) and climate change issues. Sarah has a Bachelor of Commerce from McGill University with distinction, certification in ISO 14064-3 for greenhouse gas audits, and she received the 2018 Emerging Leader Award from CPA Ontario. She also sits on the Board of Directors of Leading Change, a not-for-profit focused on catalyzing youth toward sustainable development.

Constantine (Taki) Eliadis, Eng., MBA

TakiEliadisConstantine’s career spans 20+ years in sales and marketing of advanced technology and energy services. His management and energy sector experience includes private, public, and not-for-profit sectors. He has held senior management and/or advisory roles with Toronto Hydro Energy Services, Enwave Energy Corporation, OZZ Corporation, and GreenSaver. He has also advised energy technology companies and start-ups across North America. At the Ontario Power Authority, Constantine was the architect of Ontario’s first portfolio of utility-delivered multi-sector electricity conservation programs, providing more than $900 million in funding to the market. Constantine is a mechanical engineer (B.Eng. McGill University,’85) and an MBA from Wilfrid Laurier University (’95).

Larry Brydon, LEED AP


LarryBrydonLarry has worked in the HVAC distribution and energy services market for over 25 years. He is an NRCan certified Energy Evaluator. He is currently VP Business Development with Cricket Energy, and past Chair of SBC. He serves on the Board of Directors for EnerQuality and the Canadian Energy Efficiency Alliance (CEEA). His past board experience includes the Building Industry and Land Development Association (BILD), and Past Chair of the Toronto Chapter of Canada Green Building Council’s (CaGBG). Larry has contributed to a number of industry initiatives including the LEED Canada for Neighbourhood Development, EnergyStar® for New Homes, and LEVEL, EnerQuality’s new certification program for hi-rise.

Leith Moore 

LeithLeith is a graduate of the School of Urban and Regional Planning at the University of Waterloo and continued his relationship with the school as an adjunct professor through 2016. He is also Past Chair of BILD, Past President of OHBA and Past Chair of Evergreen. Leith has served on two Provincial Advisory Panels – the Golden Panel (Transit Investment Advisory) and the Crombie Panel (Co-ordinated Land Use Planning Review). He is a past member of the Ontario Greenbelt Council by appointment of the Minister of Municipal Affairs. Leith co-founded R-Hauz Solutions Inc. in 2018 to provide affordable housing solutions for urban families and allow them to self-solve their housing needs. Leith founded Waverley Projects Inc. in 2016 as a project management and development company focused on creative ground-oriented infill development and midrise transit-oriented development opportunities in the GTHA. Previously, as Senior Vice President Development, Leith led the diversification of the Fieldgate Homes Brand (2014-2016) into the mid-rise market with Fieldgate Urban. He was Vice President of Development for the Sorbara Group of Companies (1985-2014) and managed land development and servicing, low rise housing (Orchard Ridge Homes) and high-rise condominium housing (Sorbara Group) for the company. 

Bettina Hoar, BSc (Hons), MBA, CSBA

BettinaBettina is the founder of Sage Living Toronto, a sustainable building consulting firm with a focus on health & wellbeing in the built environment. Highly service and client-oriented, Bettina enjoys facilitating knowledge and collaboration, empowering homeowners and builders to make well researched ‘wise green’ decisions when renovating or building new, enabling more productive, more enjoyable, healthier places to live and work.  Bettina is a Subject Matter Expert on Indoor Environmental Quality with Enbridge’s Savings by Design program and founding member of the, a green building education collaborative.  An avid traveller, Bettina has lived and worked in the US, Germany, Spain, Bahamas, Uruguay and Canada. In her spare time, she plays bridge and is an avid volunteer for several non-profit organizations that benefit culture, art and education.

Christine Abe, B.L.A., O.A.L.A., C.S.L.A., A.S.L.A.

Christine Abe

Christine is a landscape architect and Principal at The MBTW Group with over 30 years of experience in the field of Landscape Architecture. She has a wide range of experience in various scales of projects including numerous site plan, mixed use, institutional, school, park, condominium design, streetscape and commercial centre projects. In addition, she has been involved in the master planning of parks, new communities, schools, and institutional projects. As a Principal at The MBTW Group, Christine is involved in all aspects of landscape architecture from the design and conceptualization of a project, to the working drawings, and finally through to the contract administration phase of a project.

Tom Ponessa

Vice Chair

Tom_PonessaTom’s involvement in sustainable design began in 1993. As SBC’s Director of Programs he has been responsible for the content of the annual Green Building Festival. He has managed and facilitated several Integrated Design “charrettes” including BMO Stadium and East Gwillimbury’s sustainable development plan. He spent nearly 5 years at Delcan as the Manager for Sustainability. Tom has also worked with the Design Exchange where he initiated and delivered programming related to sustainable design. He currently provides independent consulting services in the field of sustainability. Tom is a LEED AP and holds degrees in Architecture (Dalhousie) and Urban Geography (Toronto).

John Robinson

John Robinson is a Professor at the Munk School of Global Affairs and Public Policy and the School of the Environment at the University of Toronto.  He is also an Adjunct Professor at Copenhagen Business School, and Visiting Professor at Utrecht University. At U of T, he is Presidential Advisor on the Environment, Climate Change and Sustainability, and heads up the Sustainable Built Environment Performance Assessment (SBEPA) research network.  His research focuses on the intersection of climate change mitigation, adaptation and sustainability; the use of visualization, modelling and citizen engagement to explore sustainable futures; sustainable buildings and urban design; the role of the university in contributing to sustainability; creating partnerships for sustainability with non-academic partners; and, generally, the intersection of sustainability, social and technological change, behaviour change, and community engagement processes. 

Leona Savoie


Leona, SVP Development at Hullmark, has over 20 years of experience in the development industry having worked for a number of esteemed companies with a strong focus in the development of mixed-use communities in Toronto. Over the past 8 years Leona has been part of the strategic growth of a new real estate strategy for what was otherwise a predominantly residential developer to a more diverse real estate investor focused on urban regeneration opportunities across all asset classes.  Leona currently sits on the Executive Committee of the BILD Board of Directors, and acted as Toronto Chapter chair for over four years promoting industry positions in policy development at the City of Toronto.



Michael Singleton

Executive Director

MikeSingletonAs Executive Director of Sustainable Buildings Canada (SBC) Michael Singleton has more than 20 years of experience as an economist focused on energy policy and resource planning. In his role as Executive Director of SBC, Michael manages all aspects of the organization’s operations, and delivers the SBC mandate. Michael also sits on the Board as an ex-officio member. He has been involved extensively with energy policy, program design, delivery, and evaluation. His hands-on methods deliver results, and include the delivery of integrated design process workshops, training, education, and research. He also leads SBCs flagship event, the annual Green Building Festival. Mike is owner and principal of the SeeLine Group Ltd., a boutique consulting firm serving government, agencies, and utilities.

SBC is a proud founding member


From @SustBldgCan