Estimated annual Canadian housing starts needed to restore pre-pandemic affordability by 2036
Canada’s latest housing supply gap is not just an issue of total construction. The balance between purpose-built rentals, ownership homes and local markets explains why conditions can improve in one city but worsen elsewhere.
Distinguish observed facts from projections, arguments and interpretations.
The number is a modelled need, not what builders are constructing today
In its September 2026 Housing Supply Report, Canada Mortgage and Housing Corporation estimated that annual housing starts would have to rise to between 417,000 and 469,000 to restore affordability to pre-pandemic levels by 2036. The range is an analytical scenario, not a binding government construction target. It cannot be compared directly with today’s completed homes without also considering the difference between starts, completions, demolitions and project timing. CMHC says the updated national supply gap remains broadly similar to its earlier estimate despite adjustments in local markets.
Why rental construction can improve while ownership supply deteriorates
An apartment developer may build a purpose-built rental project even when the economics of condominium presales or detached housing have weakened. CMHC reports that much of the new construction in major Canadian centres, outside Calgary and Edmonton, is now dominated by rental projects. This can ease some rental market pressure in the short term, yet leave fewer ownership-oriented options for households who want to buy later. A single nationwide construction figure hides the mix of homes being built and the income groups they are designed to serve.
Toronto and Vancouver are not following the same trajectory
The 2026 update reports a narrower estimated gap in Toronto but continuing concerns about weak ownership construction. CMHC says Toronto still needs at least 50% more annual housing starts over the coming decade to regain pre-pandemic affordability. In Vancouver, purpose-built rental apartments account for roughly 60% of starts, versus less than 20% a decade earlier; at the same time condominium starts have fallen sharply. These are not interchangeable market dynamics. Regional planning and development finance must be evaluated city by city.
Montreal, Ottawa, Calgary and Edmonton show the danger of generalisation
CMHC says Montreal and Ottawa have larger supply gaps than in its previous assessment, while record construction in Calgary has narrowed that city’s gap. Edmonton stands out as the only large market CMHC identifies as having no overall housing supply gap under its current model. That does not mean every Edmonton resident can find an affordable, accessible home or that homelessness and low-income housing needs have disappeared. The model primarily evaluates market affordability, so social housing and specialised needs require separate analysis.
Why builders may slow down precisely when more housing is needed
Construction decisions respond to today’s financing terms, pre-sales, material and labour costs, expected rents and demand. A weaker market can cause builders to delay or cancel projects despite a long-run housing shortage. Because housing takes years to plan and complete, that short-term response may produce a fresh shortage when demand eventually strengthens. CMHC specifically warns that slowing construction faster than demand creates this risk. The practical policy debate is therefore about approvals, infrastructure, construction productivity and financing that can sustain a pipeline through market cycles.
What would demonstrate genuine improvement?
Rather than using a single national target as a victory line, monitor starts and completions by city and tenure, rent and purchase prices relative to income, vacancy rates, development cancellations and the pipeline of approvals. Distinguish households buying market homes from those needing deeply affordable or supportive housing. CMHC’s September 2026 estimates should supersede older 2025 figures when readers ask what the agency currently projects; the next report may revise the range again.
What the headline leaves out
Canada’s latest supply estimate is not a tally of missing homes sitting on a waiting list. It is a model of how many housing starts would be needed each year to restore the affordability of 2019 by 2036, given assumptions about demand, income and construction. The central problem is that new rentals can temporarily become more available while the pipeline of homes for ownership and for families becomes thinner.
What the original numbers actually say
Read the period, units and definition in each row. These are distinct measurements, not personal forecasts.
| Measurement | Earlier period | Latest reference | What it means — and does not mean |
|---|---|---|---|
| Canada — projected business as usual | — | 231,000 starts/year | CMHC 2026 model projection if current trends continue; this is not the latest full-year count of observed starts. |
| Canada — low supply scenario | — | 417,000 starts/year | Annual starts CMHC models as needed to regain pre-pandemic affordability by 2036 under the low benchmark. |
| Canada — high supply scenario | — | 469,000 starts/year | Alternative required annual-starts benchmark under the high scenario; not an achieved result. |
| Canada — extra starts required | — | About 187,000–238,000/year | CMHC supply gap relative to the business-as-usual model; slight rounding differences arise from underlying numbers. |
| Toronto — business as usual vs required | — | 42,000 vs 62,000–68,000/year | A need for roughly 20,000–26,000 additional annual starts above the city projection. |
| Montréal — business as usual vs required | — | 22,000 vs 64,000–78,000/year | A modelled annual gap of about 42,000–56,000, much larger relative to its own BAU projection. |
| Vancouver — business as usual vs required | — | 20,000 vs 25,000–27,000/year | Required starts are above projected starts even though some present-day vacancy and completed inventory signals have eased. |
| Edmonton — modelled gap | — | 0 additional starts/year | No overall supply gap under this model; it does not establish that every low-income or special-needs resident is adequately housed. |
The deeper investigation
1. What the phrase “housing supply gap” actually means
Canada Mortgage and Housing Corporation published a revised national supply-gap estimate on September 10, 2026. Its question is not merely whether there are enough roofs over people’s heads today, but how many new homes would be required to move housing costs relative to incomes back toward 2019 affordability by 2036. CMHC uses an integrated model that considers population and household formation, demand, supply responses and economic variables. The comparison is between modelled annual starts under a business-as-usual path and the higher level of annual starts needed to reach the affordability benchmark. Those are scenarios rather than counts from building inspectors. A rental apartment already underway can improve availability next year yet contribute too little to the market segment that families want to purchase in five years. The headline range of 417,000 to 469,000 is valuable precisely because it makes the long-run scale of construction required explicit; it would be misleading to label it either the number of homes physically finished in 2026 or an unconditional promise about 2036 prices.
2. Why a softer housing market can conceal a future shortage
Several Canadian markets have seen increased completions, slowing rent growth and more vacant or unsold homes. Those developments can improve immediate conditions for some renters and buyers. But homes entering the market this year often began as projects planned, financed and started years earlier, when demand and capital-market conditions were different. At the same time, slower population growth and uncertainty can reduce new project launches. The visible supply of completed apartments is therefore a lagging indicator of past investment, while starts and project-financing decisions are leading indicators of future availability. CMHC warns that construction slowing faster than demand could reverse recent affordability gains as population formation and income growth recover. This is not a certainty that all prices will surge, but a coherent timing risk. A robust assessment must place completed units, starts, permits and project cancellations on a timeline rather than use a single quarter’s vacant-apartment count as evidence of a permanent surplus.
3. Renting and owning represent distinct housing pipelines
Apartment buildings meant for long-term rental, pre-sold condominium projects and detached or row houses have different financing, customer demand and development risk. Purpose-built rental can remain attractive under government financing programmes and longer-term rental cash-flow projections. Condominiums often rely on sufficient presales before lenders finance construction. When investors and end users become cautious or existing unsold stock rises, developers may struggle to reach presale thresholds and cancel projects. The 2026 CMHC analysis finds rental-oriented building is dominating new construction in many major cities apart from Calgary and Edmonton, while ownership-oriented starts have weakened significantly. Strong rental output is valuable and should not be dismissed as “the wrong type” for everyone. The point is that the supply mix can improve conditions for renters and still fail to meet demand for family-sized ownership options over the longer term. Housing programmes should evaluate both tenure and usable unit size, not merely the total number of doors built.
4. Toronto and Vancouver are not the same market
CMHC’s national supply-gap table projects Toronto at roughly 42,000 annual starts under business as usual, compared with approximately 62,000–68,000 required to restore the chosen affordability target. This is a very substantial gap even though its estimate narrowed from the prior year. Vancouver’s figures are about 20,000 business-as-usual versus 25,000–27,000 required, and its gap is described as stable. Separately, the supply report describes a shift in Vancouver toward purpose-built rental, with a sharp decline in condominium starts. Housing analysts who apply one national percentage to both cities risk missing their different construction mix, regional economics and price-to-income profiles. Toronto may require a large expansion above baseline despite improved near-term availability; Vancouver may need to preserve an ownership pipeline even with more rented apartments. The model measures a decade-long affordability objective rather than the number of apartments immediately available to an individual household at its preferred location.
5. Why Montréal and Ottawa deserve more attention than one national ranking suggests
The revised 2026 report says the estimated gaps for Montréal and Ottawa have increased. Its table places Montréal at roughly 22,000 annual starts under business as usual and 64,000–78,000 required, implying approximately 42,000–56,000 additional starts annually. Ottawa has roughly 11,000 BAU and 33,000–38,000 required, implying a gap of about 22,000–27,000. These are not claims that the construction industry should immediately begin building and completing those exact totals this calendar year regardless of financing or household demand. They are benchmarks within CMHC’s integrated scenario, showing that restoring 2019 affordability could require a markedly different housing trajectory. Local planning constraints, building costs and household incomes must be examined before treating the modeled gap as a simple instruction to approve a particular tower. The provincial and municipal context matters as much as the national headline.
6. Calgary’s improvement and Edmonton’s zero gap need careful interpretation
CMHC attributes much of Calgary’s narrowing gap to strong construction. Its 2026 table lists about 19,000 business-as-usual starts compared with approximately 23,000–24,000 required. Edmonton shows roughly 15,000 under both business-as-usual and target scenarios, leaving no modelled overall gap. These are important counterexamples to the idea that every Canadian city faces an identical deficit. Still, a zero overall affordability-model gap does not imply the elimination of homelessness, shortages of accessible units, overcrowding or unaffordable rents for households with very low income. A market may have sufficient supply for a model’s average affordability objective but still lack social housing or dwellings in accessible locations. Policymakers need separate data about social housing, Indigenous housing, disability access, shelter use and neighbourhood distribution. “Zero gap” is a statement about the specific model, not a certificate that the local housing system is perfect.
7. The real bottleneck can shift from zoning to finance and construction capacity
Permitting delays and restrictive land use can limit the potential number and location of new homes, but easing zoning alone does not instantly create construction workers, lending capacity or a viable project balance sheet. Developers must acquire land, pay for design, financing and materials, and either secure presales or demonstrate future rental revenue. When interest rates, labour costs and building materials increase, a project that looked profitable during initial planning may no longer finance. CMHC highlights weakening condominium presales, rising unsold inventory and difficult project economics across major markets. Approaches such as predictable approvals, infrastructure servicing, modular building methods and better access to long-term project finance can help in different ways, but each carries budget, neighbourhood and delivery trade-offs. Claims that a single tax incentive or zoning reform can close a national six-figure annual gap deserve scrutiny against actual observed construction starts and completions.
8. Why a national annual number does not indicate what a family should buy
For a household making a purchase decision, national scenario ranges have limited direct usefulness. Mortgage qualification, interest-rate renewal risk, down payment, income stability, local inventory and the kind of home that meets family needs are more immediate. Some buyers may benefit from more listings and less bidding competition even if a long-term structural supply gap remains. Others might face tight conditions in suitable neighbourhoods despite regional headlines of surplus condominiums. A household’s affordability is not measured by the average price alone: it depends on ongoing mortgage payments, taxes, maintenance, heating, insurance and commuting costs relative to income. CMHC’s model is a public-policy research instrument rather than an instruction to purchase now or a forecast of a particular property’s resale value. Reporting should separate policy analysis from individual financial advice.
9. How to test future policy claims against actual data
A credible progress dashboard should start with observed permits, starts and completions by city, building type and ownership or rental tenure. It should also report cancelled or delayed projects, unabsorbed completed homes, rental vacancy, price-to-income metrics and the number of units affordable to households at different income levels. Policymakers may claim that a single year of high starts proves success; the 2026 model suggests the relevant annual construction range is far above the current business-as-usual projection. Conversely, advocates may cite a two-million-home decade-long gap as if those homes would all have been occupied by today’s households, ignoring demographic assumptions and the fact that the scenario is dynamic. Annual monitoring and model revisions are essential. When CMHC issues another model, the publication should update the figures and dated conclusions rather than keep republishing this September 2026 estimate as eternal fact.
A model comparison: how far below the annual affordability path is projected building?
These are CMHC September 2026 scenario values, rounded to the nearest thousand. They are annual starts in a ten-year planning model, not homes completed in the present year. Slight discrepancies between differences of rounded columns and CMHC official gap figures are rounding effects.
CMHC business-as-usual model if currently assumed conditions persist.
Two modeled benchmarks, rather than observed totals or a government construction commitment.
CMHC reports these gaps; subtracting displayed rounded totals gives 186,000–238,000, showing the effect of rounded inputs.
The upper scenario requires roughly double the business-as-usual projection. That does not mean a specific city should simply double its permits.
An illustrative city-level annual gap of 20,000–26,000 starts, substantially below the national total but meaningful locally.
An illustrative city-level annual gap of 42,000–56,000 starts, reflecting a different regional pattern.
Annual-start scenarios are sensitive to incomes, population paths, affordability benchmarks and the response of construction to policy. Do not multiply the rounded annual gap by ten and call it an exact count of presently unoccupied homes. Housing starts are not completions or immediate availability.
The arguments, and what evidence they need
These are possible interpretations, not invented quotations from people we did not interview.
A renter seeing more apartments available today
Vacancies are improving, so surely the housing shortage has been solved.
What must still be established: Current rental completions reflect older project decisions and do not establish future ownership supply or affordability for each income group.
A construction firm struggling to finance condos
Developers cannot responsibly start more projects if presales and demand have weakened.
What must still be established: The financing obstacle is real, but a sector-wide halt may create a later supply shortfall when demand recovers; alternatives require evidence about viability and infrastructure.
A local government focused on approvals
Our zoning reform will close the housing supply gap.
What must still be established: Approvals can be necessary but are not sufficient: servicing, labour availability, credit conditions, material costs and realised completions also matter.
An Edmonton resident who cannot afford a home
If there is no modelled gap here, why is my housing still unaffordable?
What must still be established: CMHC’s overall model target is not a guarantee of suitable, accessible or deeply affordable units for every household.
Frequently misunderstood details
Does Canada literally have 469,000 families without homes each year?
No. CMHC estimates annual housing starts necessary under one affordability-restoration scenario. It is not a count of homeless households.
Are 417,000–469,000 homes currently being built?
No. They are scenario-based annual-start benchmarks. The modelled business-as-usual annual path is about 231,000, and observed completions are another statistic.
Why can rental vacancies rise while the country still faces a supply gap?
Current completed rental projects respond to earlier financing and construction decisions. The model examines long-term supply, market segments and prices relative to income.
Does Edmonton’s zero gap mean everyone there can afford housing?
No. It is a model output for the overall market affordability target, not a finding about every low-income household or neighbourhood.
Should a homebuyer assume prices will rise if there is a supply gap?
No. The model does not predict the price path for a specific home. Rates, household income, local inventory and financing conditions matter.
Does a development approval immediately add a home to the market?
No. Planning permission, financing, starting construction, finishing a dwelling and occupying it are distinct steps.
What to monitor
Conclusions can change as new numbers and decisions arrive. Monitor these indicators.
- 01CMHC starts and completions split by rentals, condos and other ownership homes
- 02Affordability measures by city and household income, not only average national prices
- 03Municipal permits, cancelled projects and construction capacity
Source documents
Read the underlying records to check units, reporting dates and subsequent corrections.