Housing Construction Productivity Is Falling, CMHC Finds, as the Crisis Deepens

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Canada’s housing shortage is often described as a race between population growth and new supply, but the deeper story is becoming harder to ignore. A growing body of CMHC-backed research suggests the country is not just building too little. It is building less efficiently than it used to, even as the affordability crunch worsens.

That tension helps explain why cranes, crews and capital have not translated into enough homes where they are needed most. The 10 sections below examine what the productivity slump means, why it matters, where the system is still functioning, and what would have to change for Canada to build faster without simply spending more for weaker results.

The supply gap is now too large to dismiss

The most important point is that Canada’s housing problem is no longer just about whether construction is rising or falling in a given year. Even when national starts improve, the gap between what is being built and what is needed remains enormous. That makes upbeat annual headlines incomplete. A gain in starts can still leave the country far behind the pace required to restore affordability.

That is why the productivity debate matters so much. If the industry has to nearly double output over the next decade, weak execution becomes more than an operational issue. It becomes a national affordability issue. The housing crisis deepens not only when projects are cancelled, but also when the sector keeps working harder without producing enough extra homes to close the gap in any meaningful way.

Canada is building less efficiently than it did before

The most striking finding in the recent research is how long the slide has lasted. Residential construction labour productivity has fallen over more than two decades, even while productivity in the broader business economy moved in the opposite direction. That is a major warning sign because housing is one of the country’s most urgent economic priorities.

In plain terms, the sector is getting less output per worker than it once did. That does not mean workers are the problem. It points instead to a wider system issue involving project complexity, coordination, regulation, capital investment and business structure. When a country needs a historic acceleration in homebuilding, sustained productivity decline means every additional dollar, hour and permit has to fight harder just to achieve the same result as before.

More labour and more money have not produced enough homes

One of CMHC’s most revealing comparisons looks at the years since the late 1990s. Over that period, the residential construction share of GDP rose sharply and employment in residential construction also climbed. But housing starts did not rise at anything close to the same pace. That mismatch is central to the current debate.

It suggests Canada’s problem cannot be reduced to a simple shortage of workers or financing alone. The system has already absorbed more resources, yet the number of homes started has not kept up proportionally. Anyone watching a busy urban skyline might assume output is surging. The data tells a more sobering story: the sector has become more resource-intensive without becoming correspondingly more productive, which is exactly the kind of drift that makes a housing shortage harder to solve.

Fragmentation is dragging down performance

Canada’s residential construction industry remains unusually fragmented, and that matters because fragmented industries often struggle to invest in better systems, better management tools and more efficient production methods. Smaller builders can be nimble and entrepreneurial, but they are also less likely to spread the cost of new technology, standardized processes or specialized back-office functions across a large volume of projects.

The recent Statistics Canada research makes this more concrete. Smaller firms still account for a large share of employment, and they drove most of the long-run productivity decline measured in the study. That does not mean small builders are failing individually. It means the national building system depends heavily on a structure that makes scaling difficult. In a crisis that demands faster delivery, the country is still relying on an industry model that often behaves like a collection of local operators rather than a modern production network.

Regulation and approvals are slowing the machine

Construction delays are often imagined as a problem that begins when crews arrive on site, but a large share of the slowdown happens long before that. Canada’s housing system still forces projects through a patchwork of rezonings, approvals, permits and local rules that vary widely across municipalities. Those differences add time, uncertainty and cost before the first shovel even hits the ground.

CMHC’s own work has stressed how important this front-end delay has become. Building a structure may take a year or two, but approvals can take far longer, especially where land-use rules are restrictive. The result is a system where the pace of construction is shaped as much by process friction as by labour availability. It also makes innovation harder. When codes, standards and permit systems differ from place to place, builders have fewer chances to standardize designs, scale prefabrication or confidently invest in repeatable methods.

The rental boom is masking deeper weakness

National housing numbers looked stronger in 2025 largely because rental construction did so much of the heavy lifting. Record rental starts in several major cities kept overall activity resilient, and in some places new supply helped ease rental conditions in the short term. That is real progress, especially after years of extremely tight markets.

But the rental boom also risks creating a misleading sense of momentum. Strong apartment construction can keep national totals elevated even while other parts of the market are weakening. Canada is adding rental supply, yet the homeownership pipeline has become more fragile and family-oriented housing remains under pressure in many expensive cities. In other words, the system is not fully stalled, but it is becoming more concentrated. When one segment carries the load, the broader supply picture can look healthier than it really is.

Ownership supply is where the warning lights are flashing

The clearest near-term risk is not that Canada will suddenly stop building. It is that the wrong kinds of projects will keep disappearing. CMHC’s latest housing supply work shows condominium presales have weakened sharply, unsold inventories have risen and tighter financing conditions are pushing developers to delay, shrink or cancel projects.

That matters because many ownership projects depend on early sales to secure financing and move ahead. When those thresholds are not met, the pipeline thins out years before the missing homes would have shown up in occupancy data. Toronto captures the problem well. Short-term conditions there may look softer because completions and listings have risen, but lower starts now point to tighter supply later. A market can look calm on the surface while planting the seeds of the next affordability squeeze underneath.

This productivity slump is now hitting prices

Falling productivity is not an abstract economist’s concern. It shows up in what housing costs to produce and, eventually, what households pay. CMHC has highlighted estimates showing that lost productivity in recent years added billions to housing construction costs in Canada and accounted for a meaningful share of the increase in new home prices.

That changes the conversation. For a long time, construction inefficiency could be treated as a background issue because booming prices seemed driven mainly by demand, land scarcity or low interest rates. But once affordability becomes a national emergency, every avoidable cost matters. Slower delivery, weaker coordination and lower output per worker are no longer side notes. They are part of the bill. The housing crisis deepens when inefficiency does not merely slow supply, but actively raises the price of each new unit that does get built.

Canada has already shown it could build more

One reason the CMHC findings stand out is that they do not suggest Canada is trapped by physical impossibility. They suggest the country is operating below potential. CMHC’s modelling has shown that if current employment levels were paired with earlier productivity levels, annual housing production could be dramatically higher. Other scenarios based on top-performing cities also point to far more output than Canada is currently delivering.

That is an important distinction. It means the crisis is severe, but not purely inevitable. Some Canadian cities are already building at much stronger rates relative to population, and past periods show the national industry has operated more efficiently before. Calgary and Edmonton have recently benefited from stronger rental and missing-middle activity, while Toronto has lagged badly on a per-capita basis. Those comparisons do not prove every city can copy another overnight, but they do show that policy, regulation and industry organization are shaping outcomes in a major way.

There is no silver bullet, but there is a clearer path

The way out is not one dramatic fix. It is a coordinated shift in how homes are planned, approved and delivered. CMHC’s framework points toward several practical levers: more predictable demand signals, simpler and more consistent rules, better digital standards, more investment in innovation, stronger training systems and policies that make experimentation less risky for builders.

That agenda sounds technical, but its real purpose is simple. Canada needs a housing system that rewards repeatability, speed and scale without sacrificing quality. More standardized approvals, wider use of building information modelling, better data and room for prefabrication could all help. So could a stronger missing-middle pipeline, since those homes are often quicker to build and easier to fit into existing neighbourhoods. The crisis is deep, but the research increasingly points to the same conclusion: productivity is not a side issue. It is one of the main battlegrounds in the affordability fight.

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