Toronto and Region Conservation Authority Administrative Office

The new 4-storey, 86,000-square-foot Toronto and Region Conservation Authority (TRCA) Administrative Office was built just beside Black Creek ravine in Toronto, ON, and is recognized as one of the most sustainable and innovative buildings in North America. The facility uses mass timber and wood construction wherever possible, following a ‘Wood First Design,’ resulting in wood being incorporated into structural, interior, and exterior elements of the building. The use of wood throughout the structure reduces the embodied carbon within the building when compared to traditional steel and concrete. The building is targeting LEED Platinum certification, WELL Building Standard Silver certification, and has received certification in 2024 as having a Zero Carbon Building Design.

Owner: Toronto and Region Conservation Authority

Structural Engineer: RJC Engineers

Mass Timber Supplier: Element5

Architect: ZAS Architect, Bucholz McEvoy Architects

Awards: 2023 Ontario Embodied Carbon Award for New Construction, 2025 Canadian Green Building Commercial Industrial (Large) Award, 2025 WoodWorks Ontario Design Award, 2025 Canadian Wood Council Citation Award, 2025 The PLAN Award Overall Winner