Our Work

Quantifying the Climate Risk in Canada’s Housing Crisis

Climate Risk Analysis

The climate risks associated with new housing in Canada

Client

Canadian Climate Institute

Schedule

2024-2026

The Problem

Canada plans  to build 5.8 million new homes by 2030 to help address the housing affordability crisis. However, a disproportionate amount of these new homes are slated to be built in high risk flood and wildfire zones. What is the cost of doing nothing to account for these hazards?

The Problem

Can Canada build 5.8 million affordable and climate resistant homes by 2030?

540k+

homes at risk of being built in flood hazard zones by 2030

92%

of new wildfire losses could occur in just 20 municipalities, 16 of which would be in B.C.

The Solution

Drawing on specialized flood risk data and wildfire risk data as inputs, SSG modelled the potential financial costs to future housing developments with ScenaAdaptation. The spatial analysis provided by ScenaAdaptation helps communities prepare for extreme weather and other hazards related to global heating.

Our analysis found that failure to consider climate risks when building new homes could cost Canadians up to $3 billion annually in damages from floods and wildfires. At the same time, our modelling showed that even a small shift in development away from high-risk flood areas can have a significant impact. Redirecting just 3% of homes targeted for construction by 2030 away from these hazardous zones could reduce flood risk to new homes across the country by nearly 80%. It’s a move that would benefit all Canadians by reducing higher insurance premiums and tax-funded disaster recovery efforts. 

The Outcome

SSG’s analysis found:

$3.1B

in costs from climate hazards can be avoided

80%

of flood risk can be avoided by just redirecting 3% of new development

The most affordable home is the one you don’t have to keep rebuilding

Close to Home: How to build more housing
in a changing climate
, Canadian Climate Institute

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