Canada Building Fire Trends: Old Buildings, New Hazards

The burned-out shell of a stone building in Old Montreal
The building on Place d’Youville in Old Montreal after the fire of March 2023, in which seven people died. Photo: Carl Campbell via Wikimedia Commons, CC BY 2.0.
Fewer fires, new hazardsUpdated 17 October 2026

Trend summary

  • Fires in shops, offices, factories and other non-home buildings are a minority of Canada’s structure fires. When they go wrong, it is often in older or misused buildings.
  • In the jurisdictions that report national fire data, structural fires fell from 17,132 in 2015 to 15,986 in 2021; about 3 in 10 were non-residential.
  • British Columbia recorded 80 fire deaths in 2024, up 29%, and more than $663 million in fire losses.
  • Lithium-ion batteries are now a cause of building fires too: Toronto’s count rose 162% in two years.
15,986structural fires in 2021 (reporting jurisdictions)
~3 in 10structural fires that were non-residential
+162%lithium-ion battery fires in Toronto, 2022 to 2024
7deaths in the Old Montreal fire, March 2023

What the numbers show

Statistics Canada’s National Fire Information Database covers Nova Scotia, New Brunswick, Ontario, Manitoba, British Columbia, Yukon and Canadian Armed Forces bases. Structural fires there fell from 17,132 in 2015 to 15,168 in 2020, then rose to 15,986 in 2021. They were 42% of all fire incidents, and about seven in ten were residential, so roughly three in ten were in commercial, industrial, institutional and other buildings. National data stop at 2021.

British Columbia publishes newer figures. In 2024 it recorded 12,072 fires and 4,063 structure fires, of which about 880 were non-residential, with 80 fire deaths and more than $663 million in losses. Police-reported arson adds to the toll: about 9,500 incidents a year in 2012-2021, with the rate up 12% in 2021.

What is driving it

Two things stand out. The first is how older buildings are used. In Old Montreal, six of the seven people who died in March 2023 were staying in illegal short-term rentals in a 15-unit heritage building; in March 2026 the owner was charged with seven counts of manslaughter (CP24). The second is batteries: Toronto recorded 29 lithium-ion battery fires in 2022, 55 in 2023 and 76 in 2024, including a high-rise fire with multiple injuries.

Rules are catching up slowly. The 2025 editions of the National Building Code and National Fire Code were released in December 2025; provinces adopt them on their own timetables.

Recent cases

  • 18 March 2026: the owner of the Old Montreal building where seven people died is arrested and charged with manslaughter and criminal negligence (CP24).
  • December 2025: the 2025 National Model Codes are published, with free electronic versions from the National Research Council (Mechanical Business).
  • 7 July 2025: the City of Toronto warns residents after battery fires rose 38% in 2024 (City of Toronto).

Press releases and official reports, 2023–2026

Five key releases a year for the last four years, newest first. Most come from federal departments and agencies, the Transportation Safety Board, Statistics Canada and provincial governments; a few news and trade reports are included where they are the clearest public record of an event. Releases from 2007–2022 are in the expandable list after 2023.

2026

2025

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2023

View 20 years of major Canadian building fire press releases (2007–2026)77 more from 2007–2022, up to five a year, newest first

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Some early years list fewer than five items. Many Canadian government releases from that period are no longer online at their original addresses, and we only list items we could open and check. Where a page shows no date, the date comes from the release address or the publisher’s own index.

Photo list

Satellite image of smoke over the town of Lac-Mégantic
Satellite view of smoke over Lac-Mégantic, Quebec, on 6 July 2013, after a runaway oil train derailed and exploded in the town centre, killing 47 people. Photo: NASA (VIIRS, Suomi NPP satellite) via Wikimedia Commons, public domain.
A Toronto Fire Services high-rise unit truck on a city street
File photo: a Toronto Fire Services high-rise unit. Photo: PvOberstein via Wikimedia Commons, CC0.

How this page is built. Figures come from the official statistical releases linked above; where agencies publish provisional numbers we say so, because they are revised. Canadian statistics are often collected by provinces and territories, and some national series run several years behind, so we say which area and year each figure covers. Photos are public-domain or Creative Commons images credited in each caption; file photos are illustrative and are not from the events described unless the caption says so. This page tracks trends and is not personal safety, medical, legal or financial advice.