Ontario Housing Supply · Updated monthly
Ontario Housing Supply Update — May 2026
Ontario started almost exactly as many homes this May as last May — single-detached, multi-unit, and total starts all down about 2%. The real movement is underneath, where construction in small centres fell nearly a third. That gap is the story.
Ontario housing starts — May 2026
Seasonally adjusted annual rate. Year-over-year comparison vs. same month prior year.
| Housing type | Prior year | Current | YoY change |
|---|---|---|---|
| Single-detached | 9,933 | 9,751 | −1.8% |
| Multi-unit | 58,558 | 57,518 | −1.8% |
| Total starts | 68,491 | 67,269 | −1.8% |
What the data shows
CMHC released its May 2026 monthly housing starts in mid-June. After a volatile spring — April’s seasonally adjusted rate spiked on a multi-unit surge — May settled right back to flat. Ontario’s single-detached, multi-unit, and total starts each came in about 2% below the same month last year, on a seasonally adjusted annual basis. Nothing collapsed; nothing grew. The province’s housing engine is running in place, producing roughly the same volume it did a year ago while the population it has to house keeps climbing.
Why conventional supply is pulling back
Flat is not stability — it’s stall. Demand keeps rising; supply doesn’t move. Single-detached starts have now spent months stuck near their floor: at today’s land, permit, financing, and trade-labour costs, stick-built ground-related homes below a certain price point don’t pencil out, so builders neither expand that line nor abandon it — they hold. Multi-unit, which carried April, gave most of that gain back in May. The net is a market that can’t add ground-related ownership supply even in a good month. The families who want a house with a yard are left waiting on a pipeline that isn’t growing.
Where modular fits
Factory-built homes cost less to produce, deliver in months, and don’t carry the weather and trade-fragmentation risk that has pinned site-built single-detached near its floor. Modular doesn’t compete for the units the market is already building — it restores the ground-related ownership the conventional pipeline has stopped growing. CMHC counts modular homes on permanent foundations inside these very numbers — we’re in the data, not outside it. When conventional single-detached flatlines, every modular home delivered is net-new ground-related supply the market would not otherwise get.
See how modular homes deliver for buyers in Ontario, or read the REALTOR® field guide for the talking points to use with clients.
Small centres and the coverage gap
The CMHC survey fully enumerates centres of 10,000 population and over. Step outside that footprint — into the smaller centres and rural areas under 10,000 people — and starts fell nearly 32% year-over-year in May, the latest in a run of steep declines there. The supply gap is widest exactly where conventional builders rarely go: exurban land-lease, on-reserve First Nations land, small-town and rural Ontario. Those are the places modular delivers fastest, and where its cost and speed advantages matter most.
For landowners outside major centres, our landowner partnership model puts modular communities into footprints conventional developers won't touch.
What this means for buyers and investors
For homebuyers: a flat pipeline is a closed door. Waiting for site-built single-detached supply to grow means waiting for an economic problem to fix itself — and in May it didn’t budge. Modular delivers within months at price points conventional builders no longer hit. For investors: demand is structural and supply is static — the textbook setup for rents and values to firm. Single-unit modular ownership and small-scale rental plays sit precisely in the gap the conventional market keeps failing to close.
Run the numbers on a modular rental play with the rental income calculator.