Canada’s Construction Slowdown Is a Warning Shot for Long Term Housing Strategy
Housing markets rarely move in straight lines, and the latest signal from Canada Mortgage and Housing Corporation is a reminder of that. A new CMHC report warns that recent gains in affordability could unwind if home construction keeps slowing, even as demand growth has softened. For anyone thinking about cities in decades rather than quarters, this is exactly the kind of moment that separates disciplined development strategy from short term thinking.
CMHC estimates the country needs between 417,000 and 469,000 housing starts a year to close the affordability gap and return to pre-pandemic conditions by 2036. That number has not moved much since 2025, but the composition behind it has. New construction is slowing faster than demand, which means the supply gap is not closing on its own merit. It is narrowing, in some markets, only because fewer people are competing for the same limited pipeline.
What stands out to me is the split between rental and ownership construction. Rental supply has done the heavy lifting in Canada’s largest markets, which has helped rebalance rental conditions. But ownership-oriented construction, the kind that builds long term equity and community stability, has weakened considerably. That is a structural risk. A market can look calmer today while quietly setting up the next shortage for buyers when demand strengthens again.
The city level detail is where this becomes a real planning story. Calgary’s record construction has meaningfully narrowed its gap, with ownership starts actually rising to meet demand. Edmonton stands alone as the only large market CMHC identifies with no supply gap at all, a result of steady homeownership construction and relative affordability. Those two markets show what disciplined, demand-responsive development can achieve.
Toronto tells a different story. Its overall gap has narrowed, but the shortage is now concentrated squarely in ownership housing, and CMHC says the city would need to lift annual starts by at least 50 per cent over the next decade just to restore pre-pandemic affordability. Vancouver’s gap has held steady, but condo construction has fallen to its lowest point in more than ten years. Montreal and Ottawa have seen their gaps widen, with Ottawa’s new supply leaning heavily toward rental. Halifax has built strongly, yet population growth keeps outrunning it, particularly for buyers.
The key risk now is Canada underbuilds during this softer market and finds itself further short of housing when demand strengthens again.
That line from CMHC deputy chief economist Aled ab Iorwerth is the core strategic lesson here. Development pipelines take years to respond to demand signals. A softer market is not the moment to pull back on ownership-oriented projects, it is the moment to maintain momentum so supply is in place before the next demand cycle arrives. Cities like Edmonton and Calgary are proving that consistent, well-timed construction activity is what actually closes affordability gaps, not just population slowdowns. For developers and planners, the takeaway is straightforward: build through the quiet periods, because underbuilding now simply defers the shortage rather than solving it.
Source: westcentralonline.com
