Canada’s housing construction sector is experiencing an unprecedented surge, with housing starts reaching historic highs over the past four years.
However, a new analysis reveals a troubling divide: while much of the country is riding a wave of robust construction, Ontario—Canada’s most populous province—is dragging its feet, threatening to deepen the nation’s housing crisis.
The Greater Toronto Area (GTA), in particular, is at the epicenter of this slowdown, raising alarm bells about affordability and economic stability.
This article delves into the latest findings from the Royal Bank of Canada (RBC) and Canada Mortgage and Housing Corporation (CMHC), exploring why Ontario’s housing market is faltering and what it means for Canadians.
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A National Housing Boom with a Glaring Exception
According to a recent RBC report analyzing CMHC data, Canada’s housing construction sector is thriving, with 263,000 housing units started in July 2025 alone—a 3.7% increase from the previous month.
This marks a continuation of a four-year trend of vigorous construction activity across the nation.
Provinces like Alberta, Saskatchewan, Manitoba, Quebec, and Atlantic Canada are all contributing to this upward trajectory, with housing starts surging to meet growing demand.
Even British Columbia, while experiencing some moderation, remains relatively stable compared to the national leader in decline: Ontario.
The RBC report, authored by economist Robert Hogue, paints a stark picture of Ontario’s lagging performance.
The province, home to Canada’s largest city and economic hub, Toronto, is seeing a steep drop in housing starts, particularly in the GTA.
This divergence is not just a statistical anomaly—it’s a warning sign of a deepening housing crisis that could have far-reaching social and economic consequences.
Ontario’s Housing Woes: The Root of Canada’s Crisis
Hogue’s report identifies Ontario’s sluggish construction pace as a central driver of Canada’s broader housing affordability challenges.
“This divergence is concerning because it threatens to perpetuate severe affordability problems that exert social and economic hardship on Canadians in these regions,” Hogue writes.
In Ontario, the six-month average for housing starts has plummeted to its lowest level in a decade, moving in the opposite direction of the province’s ambitious goal to build 1.5 million new homes over the next 10 years.
The GTA, in particular, is bearing the brunt of this decline.
Housing starts in Toronto plummeted by a staggering 69% in July 2025 compared to the same period last year, with a year-over-year drop of 49%.
Nicole Lechter, senior real estate analyst at RSM Canada, attributes this collapse to soaring development costs.
“High development costs continue to choke new rental supply in Toronto,” Lechter explains.
“Without policy reform, the downward spiral is likely to continue.”
Why Is Ontario Falling Behind?
Several factors are conspiring to stall Ontario’s housing construction.
The RBC report points to skyrocketing costs for land, labor, and materials, which have escalated rapidly in recent years.
Municipal development charges and other fees have further compounded the financial burden on builders, making new projects increasingly unviable.
These rising costs are particularly acute in the GTA, where land prices are among the highest in the country.
Another significant factor is the sharp decline in condominium construction, a critical component of Ontario’s housing market.
Condo starts have “plummeted with no end in sight,” according to the RBC report, as developers grapple with unfavorable economic conditions and regulatory hurdles.
Unlike single-family homes, multi-unit projects like condos take years to complete, meaning the current slowdown will have a delayed but profound impact on housing supply.
“The full impact of the current slowdown in housing starts won’t be felt for years in Ontario,” the report warns.
“It can take two, three, or more years to complete a large multi-unit project once the foundation has been poured.”
This lag means that the GTA is still processing a wave of condo completions from projects started during the pandemic, masking the severity of the current downturn.
However, as these projects dry up, the housing shortage is expected to worsen significantly by 2026 and beyond.
The Ripple Effects of Ontario’s Housing Slump
The consequences of Ontario’s construction slowdown extend far beyond the province’s borders.
As Canada’s economic engine, Ontario’s housing market plays a critical role in national affordability and economic stability.
The lack of new housing supply in the GTA, where demand remains high, is driving up home prices and rents, exacerbating affordability challenges for residents.
Young families, first-time buyers, and renters are particularly hard-hit, facing dwindling options in an already competitive market.
Moreover, the housing crisis in Ontario threatens to undermine Canada’s broader economic recovery.
Limited housing supply can deter population growth, discourage business investment, and strain public services as residents compete for scarce resources.
The social implications are equally dire, with rising homelessness and housing insecurity becoming pressing concerns in urban centers like Toronto.
A Tale of Two Canadas: Regional Disparities in Housing Starts
While Ontario struggles, other provinces are forging ahead.
Alberta, Saskatchewan, Manitoba, Quebec, and Atlantic Canada have all reported strong gains in housing starts, reflecting a more favorable environment for construction.
These regions benefit from lower land costs, fewer regulatory barriers, and proactive government policies aimed at boosting housing supply.
For example, Alberta’s streamlined permitting processes and incentives for developers have fueled a construction boom, while Quebec’s investment in affordable housing has supported steady growth.
British Columbia, while not matching the pace of other provinces, is holding its own. The province has seen a slight moderation in housing starts, but the decline is far less severe than in Ontario.
This regional disparity underscores the need for targeted policy interventions in Ontario to address its unique challenges.
The Path Forward: Addressing Ontario’s Housing Crisis
To reverse the downward spiral in Ontario’s housing market, experts are calling for urgent policy reforms.
The RBC report highlights the need to address high development costs, which are stifling new construction.
Potential solutions include reducing municipal development charges, streamlining permitting processes, and offering incentives for affordable housing projects.
Additionally, governments could explore public-private partnerships to share the financial burden of new developments.
Nicole Lechter emphasizes the importance of supporting rental housing construction, which is critical for addressing affordability.
“Without policy reform, the downward spiral is likely to continue,” she warns.
Measures such as tax breaks for rental developers or subsidies for low-income housing could help stimulate supply in Toronto and other high-cost areas.
At the provincial level, Ontario’s government faces pressure to rethink its approach to meeting its 1.5-million-home target.
The current trajectory suggests that the province is falling far short of its goal, necessitating bold action to reverse the trend.
Federal support could also play a role, with programs like the CMHC’s housing initiatives potentially providing a lifeline for struggling developers.
The Clock Is Ticking: A Looming Crisis in 2026 and Beyond
The RBC report warns that the effects of Ontario’s housing slowdown will become increasingly apparent in the coming years.
As the pipeline of new projects dries up, the province risks a severe shortage of homes, driving prices even higher and worsening affordability.
The GTA, in particular, faces a precarious future, with the potential for a full-blown housing crisis if current trends persist.
For now, Canada’s national housing boom offers a glimmer of hope, but Ontario’s struggles cast a long shadow.
Policymakers, developers, and communities must work together to address the root causes of the province’s construction slump and ensure that all Canadians have access to affordable, quality housing.
Can Ontario Turn the Tide?
Canada’s housing market is at a crossroads.
While much of the country is experiencing a construction renaissance, Ontario’s faltering performance threatens to undermine national progress.
The GTA’s plummeting housing starts, driven by high costs and declining condo construction, signal a deepening crisis that demands immediate attention.
By addressing development costs, reforming policies, and prioritizing rental housing, Ontario can begin to close the gap and restore balance to Canada’s housing market.
The stakes are high, and the clock is ticking—will Ontario rise to the challenge, or will its housing woes spiral into a national catastrophe?
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