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Underbelly Revitalization With CLT Housing Clusters in Downtown Toronto

Authors:
Maksym Humenyuk, Dan Van derhorst, Novak Djogo
Underbelly Revitalization With CLT Housing Clusters in Downtown Toronto

Project in-detail

Utilizing cross-laminated timber, the transformation of the Gardiner Expressway's underbelly into modular housing clusters aims to provide affordable living spaces for marginalized communities in downtown Toronto.
5 key facts about this project
01
Modular units designed to fit within the existing structure of the Gardiner Expressway.
02
Cross-laminated timber construction enhances sustainability and reduces carbon footprint.
03
Clusters of housing promote community interaction and shared spaces.
04
Targeted support for vulnerable populations, including the homeless and large families.
05
Integration of safe, accessible pathways for residents beneath the elevated highway.

The "Under the Gardiner" project reimagines the space beneath the Gardiner Expressway in downtown Toronto, turning a neglected area into usable housing. The initiative not only looks to address the crumbling infrastructure of the highway but also seeks to provide affordable living options in a city facing significant housing shortages. With its focus on modular housing units, the design aims to support various groups, including the homeless, students, and families, promoting community and inclusivity.

Architecture Concept

The concept centers on using the existing structure of the Gardiner Expressway to create livable spaces. By placing modular units beneath the highway, the design reclaims an area that many would consider unwelcoming. The housing is arranged in clusters to encourage interaction among residents. This approach not only makes the space more inviting but also enables easy access to shared amenities.

Materials

The project utilizes structural CLT modules, a choice that reflects a commitment to sustainability. Cross-laminated timber is a strong material that contributes to both the durability and environmental friendliness of the construction. With this choice, the project aims to minimize its carbon footprint while providing a functional and durable living space.

Design Outcomes

Transforming the underbelly of the Gardiner into housing addresses two major issues: the need for affordable living and the revitalization of an overlooked urban space. The modular nature of the design allows for gradual development, responding to the ever-changing housing landscape.

Alongside individual units, there are communal areas that foster connection among residents. Each living space is designed with attention to light and ventilation, providing a comfortable environment. The overall outcome is a thoughtful approach that not only meets housing demands but also enhances the character of downtown Toronto, giving new life to an area that has long been underused.

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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
competition now

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