The Ontario Secondary School Teachers’ Federation (OSSTF/FEESO) new Headquarters and Multi-tenant Commercial Building is currently under construction. This progressive 3-storey 124,000 SF Mass Timber project will seamlessly integrate commercial opportunities with the revitalization of the OSSTF/FEESO’s existing office complex in Toronto. Overlooking the Don Valley ravine landscape, the building is a highly sustainable, financially viable, and innovative new workplace that uses Net-Zero Carbon strategies, and targets LEED Platinum certification and high-energy performance levels at 67 kWhr/m2/year.
The new OSSTF/FEESO Headquarters and Multi-tenant Commercial Building is spatially divided to house the OSSTF/FEESO offices as well as two floors of leasable tenant space. Joined by a central atrium, the building will offer abundant outside views, light, openness, and numerous opportunities for spontaneous interactions between the OSSTF/FEESO staff and tenants. Furthermore, shareable spaces on the Main Floor include the Lobby, Café, and Main Floor Terrace, and features a multipurpose, convertible Event Space; this space will be shared not only by the building occupants, but also by outside groups, providing opportunities for engagement with the wider community.
The architecture promotes health and wellness at every level: natural daylighting has been maximized thanks to generous structural bays; building automation systems move fresh air through the building; large overhangs reduce solar heat gain and control glare; geothermal heating, a rainwater harvesting system for toilet flushing and irrigation, green roof, rooftop solar PV panels, and automated daylight dimming controls further contribute to significant energy savings. Constructed out of Cross Laminated Timber (CLT) floor slabs and Glue Laminated Timber (GLT) beams and columns, structural components will be sourced nationally where possible, and demonstrate a robust, honest, yet innovative application of natural materials. Designed to the highest environmental standards, the OSSTF/FEESO headquarters is built on a foundation of social, environmental and financial sustainability.
Ontario Secondary School Teachers’ Federation (OSSTF/FEESO)
Carol Phillips, Partner in Charge
Phil Silverstein, Project Manager and Job Captain
Gord Doherty, Construction Administrator
Cathy McMahon, Architect
Deya Iskandarova, Architect
Corey Brown, Construction Administrator Assistance and Architect
Emmanuel Awuah, Technologist
Maya Desai, Senior Urban Designer
Sean Robbins, BIM Manager
Kayley Mullings, Interior Designer (Public and Shared Spaces)
Kasian Architecture Interior Design and Planning
Fast + Epp
Mechanical Engineering, Electrical Engineering, A/V, IT, Lighting, LEED Consulting
Introba (Previously: Integral Group)
Matrix Solutions Inc.
Transsolar KilmaEngineering Inc.
Creative Irrigation Solutions
Code Consulting, Fire
CHM Fire Consultants
Traffic and Parking Systems Engineering
Kaizen Foodservice Planning & Design
Rethinking the Future Award – Office Building (Concept) Category [Runner-Up] (2023)
LOOP Design Awards – Office Concept Category (2023)
Architecture Press Release (APR), Global Future Design Awards – Office Building (Under Construction) Category (2023)
- OSSTF Construction Site Photos
- OSSTF Construction 2021 – 2022
- OSSTF Tour with Canadian Wood Council
- OSSTF Moments
- OSSTF Tour in September
- OSSTF Headquarters Construction Update
- OSSTF HQ Construction Site Tour
- Construction at OSSTF Headquarters and Multi-Tenant Building
- OSSTF HQ Construction During March
- MTA Mass Timber Projects in Toronto Life Magazine
- Ontario Secondary School Teachers’ Federation – Headquarters
- Ontario Secondary School Teachers’ Federation HQ Construction