Saturday, May 23 & Sunday, May 24, 2026
10:00 a.m. to 5:00 p.m.

Toronto and Region Conservation Authority’s (TRCA) new Administrative Office Building that brings together cutting-edge sustainability design and practice in one unique structure.

Mass timber construction, an open-loop geothermal heating/cooling system and minimal use of concrete combine to create a building with low greenhouse gas emissions – the estimated CO₂ reduction is roughly equivalent to taking more than 240 cars off the road for a year!

Join us for Doors Open Toronto and get a chance to explore one of the most sustainable buildings in North America. Discover the innovative green technologies integrated into TRCA’s new Administrative Office through interactive displays and drop-in guided tours happening every 20 minutes.

Take part in activities and other family-friendly learning opportunities to uncover hidden gems of the local environment. Each guest will leave inspired to be an environmental champion.

TRCA is committed to creating an accessible experience for all participants. If you require an accessibility accommodation, or have any questions about this event, please email tisha.tan@trca.ca at least 7 days prior to the event.