Concerted Action on the ‘Missing Middle’

Reforming the National Building Code to allow single-egress multi-unit housing

Funds are requested to support the development of a detailed dossier in support of changes that have been formally requested to the National Building Code of Canada (NBCC) by our project team concerning the number of egress points for multiple-unit housing.

Design-centred housing reform

Funds are requested to support the development of a detailed dossier in support of changes that have been formally requested to the National Building Code of Canada (NBCC) by our project team concerning the number of egress points for multiple-unit housing. This will further the urgent and promising work of a coalition of practitioners, activists, and researchers to reform regulatory frameworks across Canada in favour of affordable housing. Our central claim is that the NBCC is inconsistent with (and does not allow for the same design flexibility as) building codes in almost all other jurisdictions internationally, and fails to recognize that a second egress is unnecessary for mid-rise housing typologies where other life-safety measures are provided. This initiative had the benefit of BSH seed funding in 2021-22 (Luka et al., ‘Toward abolition of R1 zoning and the two-egress straitjacket ?’).

Project Lead(s):

Home Organization:

McGill University

Community Partner:

LGA Architectural Partners, Larch Lab, David Hine Engineering Inc., Canadian Home Builders’ Association, City of Toronto, SvN Architects + Planners

Funding Stream:

Comparative Project

project status:

Ongoing

Results

We have made tremendous progress, including successfully lobbying the Government of Ontario to demand high-level discussion of reform to the NBCC concerning where and under what conditions single-egress residential construction is permitted. To continue this work, detailed documentation outlining the reasons and entailments associated with the regulatory reform must be prepared and submitted. A detailed work strategy has been developed by the coalition, and the community partners named on this application have agreed to play key roles in seeing us through on the due diligence needed for the proposed changes to be considered and implemented.

Research Outputs

Existing reports, presentation materials, podcasts, webinar recordings and research summaries.

The Second Egress

Website

This website is a tool to make sense of the wicked problem of the second egress in Canada and prepare a building code change:

Learn more

Single Stair Residential Building

Report

This report investigates the benefits to residential construction—unlocked sites and greater floor area, design flexibility, and livability—brought about by code reform allowing for a single-stair exit.

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In the News

See where BSH research has landed in the media.

Back to Research
  • Press

    The Globe and Mail: B.C. looks to change building code to develop single-stair apartment buildings

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  • Press

    The Globe and Mail: How changing an old rule about stairs could unlock a lot of new housing

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