Moriyama Teshima Architects is thrilled to reveal that the Ontario Secondary School Teachers’ Federation (OSSTF) Headquarters and Multi-Tenant Complex has been awarded a 2025 Popular Winner Architizer A+Award in the Commercial – Office – Low Rise (1 – 4 Floors) category!

The Ontario Secondary School Teachers’ Federation (OSSTF) Headquarters and Multi-Tenant Commercial Building is a progressive 3-storey, 124,000 SF fully exposed mass timber project that uses net-zero strategies, and seamlessly integrates commercial opportunities with the relocation and revitalization of the OSSTF’s offices in Toronto. The building houses OSSTF/FEESO – an organization that represents all education professionals in the secondary school system in Ontario, as well as additional tenants. All design decisions were rigorously assessed for long-term value, health and wellness of employees, and operational savings. Designed to the highest environmental standards, the facility is built on a foundation of social, environmental, and financial sustainability.