Project experience · Built

1120 Ossington

25 supportive housing units shaped for a constrained Toronto site and delivered through prefabricated mass timber construction.

Project overview

Housing and community space shaped around its neighbours.

Designed for a constrained urban site, the development combines private micro-units, each with a kitchenette and bathroom, with shared community spaces. Its L-shaped form responds to the neighbouring church, with façade artwork by Leo Krukowski.

Location: Toronto, Ontario
Client: St. Clare’s Multifaith Housing Society
Housing: 25 supportive housing units
Building: Three storeys; 7,362 sq. ft.
Architectural service: McCallum Sather
Team leads: Nolan Cipriano and William Neal
Partners: Assembly Corp.; Smart Density

Angled view of the orange façade and patterned window screens

Close view of windows and patterned shadows across the orange façade

Completed supportive housing building seen from the street beside the church

Construction

Panelized mass timber, assembled on a tight site.

Mass timber with prefabricated, panelized tilt-up construction.
Reported erection time: 17 days, not the entire construction schedule.
Ontario-sourced, three-ply cross-laminated timber.

Sustainability

A high-performance urban infill approach.

R40 nominal envelope and Passive House-rated slab system.
Modelled energy performance 40% better than the NECB baseline.
Building automation for performance monitoring.
Transit-accessible infill location.

Construction sequence

The structure taking shape.

Aerial and site photography documents the prefabricated timber assembly within the narrow infill footprint.

Aerial view of timber construction on the narrow urban site

Crane lifting a prefabricated timber panel into place

Aerial view of exposed timber walls during construction

Aerial view of the timber structure with roof panels installed

Overhead view of panelized construction and lifting equipment

Listed consultants

Project team

Hammerschlag & Joffe
Birnie Electrical Engineers
Aspect Structural Engineers
Loftin Construction
Element5

Recognition

Awards

2025 Toronto Urban Design Award
2025 Wood Design & Building Award
2026 AZ Awards: Social Good

Recognition is listed from the supplied McCallum Sather project information.

Start a conversation

Talk through your next housing project.

Discuss a Project

This page describes MidRise5 project experience that informs the HeadStart design. It is not a HeadStart licence customer project.

Considering a similar project? Learn how HeadStart licensing works.