Canada's 4.69-Million-Home Target Faces a Construction Slowdown

The Canada Mortgage and Housing Corporation spent the last year watching developers cancel projects in mid-construction. Between rising financing costs and labour shortages that kept pushing timelines, the agency saw exactly the pattern it had warned about: progress stalling just as the country needed to accelerate.

The CMHC's latest supply gap estimate sits at 4.69 million housing units by 2036. That figure represents the additional homes Canada needs above and beyond current construction trends to restore pre-pandemic affordability. The agency reported a modest narrowing of the gap in 2025, but the pace of new housing starts is projected to slow rather than speed up over the next 18 months.

Why the construction pace is slowing

The lag matters because housing construction doesn't respond instantly to policy changes. Even when the Bank of Canada adjusts rates, there's typically an 18-to-24-month delay before those changes result in shovels in the ground. Developers who absorbed high financing costs in 2024 and 2025 are now reassessing feasibility on multi-unit projects that would break ground in 2026 and 2027. The CMHC forecasts a dip in housing starts for that period because projects approved under expensive financing conditions are being shelved.

Labour compounds the issue. A significant share of the skilled trades workforce is nearing retirement, and there aren't enough new workers entering to replace them. Framers, electricians, plumbers. The trades that physically assemble homes are bottlenecked, and no amount of zoning reform fixes that in the short term.

The "missing middle" remains missing

The supply gap isn't evenly distributed across housing types. Single-family detached homes continue to get built in exurban areas, and high-rise condos dominate the core of Toronto and Vancouver. The shortage sits in between: townhomes, low-rise apartments, stacked units. These are the forms that bridge the gap between a $2.1-million detached house and a 450-square-foot condo, and they're precisely what isn't being delivered at scale.

Regulatory barriers at the municipal level are part of the problem. Lengthy permitting processes remain a primary constraint, even in cities that have formally committed to increasing density. A developer can secure zoning approval for a mid-density project and still wait many months for permits to be issued. That delay eats into financing windows and makes projects pencil out only at higher price points, which doesn't solve the affordability problem the supply is meant to address.

Secondary suites and adaptive reuse

With new builds slowing, the housing system is shifting toward adaptive reuse. Converting commercial buildings into residential units, legalizing basement apartments, approving garden suites. These aren't substitutes for large-scale construction, but they add units faster than breaking ground on greenfield subdivisions. Municipal zoning changes across Ontario and British Columbia have made it easier for homeowners to add secondary suites, and those units are entering the market now.

The federal government's Housing Accelerator Fund is pushing municipalities to change bylaws that restrict density. Progress is uneven. Some cities have moved quickly to permit as-of-right fourplexes. Others are still debating height limits on mid-rise buildings.

The 2036 target is not a given

Reaching 4.69 million new homes by 2036 requires an average construction pace well above what Canada achieved in its best years. The CMHC uses 2036 as a planning horizon because closing the supply gap can't happen within a single political cycle. But the math only works if construction accelerates consistently from 2026 forward, and the current trajectory points the other direction.

The risk isn't that Canada builds zero homes over the next decade. The risk is that the country underbuilds significantly against the 4.69 million target, and affordability stays out of reach for another generation.