The Role of Policy and Investment in Scaling Canadian Prefab

From Factory Floor to Foundation: The Role of Policy and Investment in Scaling Canadian Prefab

For decades, prefabricated and modular construction has hovered at the margins of Canada's housing industry—a promising idea that never quite broke through to the mainstream. That is finally changing. When Prime Minister Mark Carney toured Intelligent City's advanced manufacturing facility in Delta, British Columbia, this past spring, the visit signalled something significant: prefabricated construction has moved from the margins to the mainstream of Canada's housing conversation . With the federal government's $26 billion Build Canada Homes agency now operational, the country is placing an enormous bet on factory-built housing as a core solution to the affordability crisis . But here's the critical question that will determine whether this bet pays off: Can policy and investment successfully bridge the gap between the factory floor and the finished foundation?

The Promise of Prefabrication

The advantages of factory-built housing are well-documented and compelling. Off-site construction can reduce project timelines by up to 50 percent and lower costs by approximately 20 percent compared to traditional methods . Material waste can be cut by as much as two-thirds, offering meaningful environmental and cost benefits . Factory production also improves safety by moving work to controlled environments and enables year-round construction regardless of weather .

Canadian examples already demonstrate this potential. The University of British Columbia's Brock Commons Tallwood House, an 18-storey mass timber student residence, was erected in under 70 days once prefabricated components arrived on site . In British Columbia, Selkirk College's residence and Trinity Western University's Jacobson Hall have shown how modular and mass timber methods can reduce waste, lower costs, and accelerate delivery while meeting high energy efficiency standards . Yet despite these successes, prefabricated housing currently accounts for less than five percent of residential construction in Canada . The sector's factories are operating at a fraction of their capacity, even as the housing crisis deepens .

The Policy Framework: Build Canada Homes

The federal government's Build Canada Homes agency represents the most ambitious industrial strategy for housing in generations. With $26 billion in backing, the agency aims to do more than simply fund projects—it seeks to create 'an entirely new Canadian housing industry' .

The strategy has multiple components. First, direct investment in prefabricated home producers to help them automate production lines and add shifts . Second, bulk purchasing commitments to manufacturers to enable consistent production runs and maintain employment during traditional downturns . Third, workforce development investments totaling nearly $130 million over five years to train approximately 33,000 Canadians in construction trades, including those specific to prefabricated methods .

As Minister Sean Fraser noted when announcing federal support for modular housing initiatives in Atlantic Canada: "We're investing to modernize how homes are built—helping builders and manufacturers test modular and prefabricated construction, reduce delays, and bring housing projects to completion more quickly" .

But policy leadership extends beyond the federal government. In Quebec, a partnership between the Canada Mortgage and Housing Corporation (CMHC) and the Société d'habitation du Québec has launched multiple calls for highly prefabricated multi-unit housing projects, targeting 500 units by 2026 using a design-build model with optimized planning . These initiatives provide real-world testing grounds for scaling prefabricated approaches.

The Financing Challenge: When Value Is Created Before It's Visible

Perhaps the most significant barrier to scaling prefabrication is financial. Traditional construction financing is designed for site-built development, where lenders release funds based on observable progress rising from the ground. But prefabricated builders create enormous value on the production line, value that remains invisible to traditional lenders until modules arrive on site . This mismatch leaves modular builders carrying heavy upfront costs with limited access to working capital, even as they produce completed units ready for delivery . The C.D. Howe Institute has identified financing reform as critical to scaling innovative housing, recommending low-cost financing, investment tax credits, and output-based repayment models to de-risk investment for suppliers . The federal government has signalled openness to addressing this challenge. Establishing a prefab-ready lending stream within CMHC's Apartment Construction Loan Program—one that aligns loan draws with the factory cycle—would attract mainstream lenders, lower carrying costs, and accelerate purpose-built rental supply .

The Regulatory Maze: 5,161 Reasons Standardization Is Difficult

If financing is the first major hurdle, regulation is the second—and it may be even more intractable.

Canada has approximately 5,161 local governments, each with its own zoning rules, building standards, and approval processes . This fragmentation creates a regulatory nightmare for prefabricated manufacturers. A factory serving the greater Montreal area must contend with around 100 sets of norms and standards across boroughs and suburbs. The Golden Horseshoe includes more than 110 municipalities. Metro Vancouver has 23 local governments . Within individual municipalities, the complexity multiplies. Gatineau, for example, has more than 800 residential zones, each with its own set of regulations . The result: manufacturers are forced to redesign the same home repeatedly for different jurisdictions, inflating costs and preventing the standardization that makes factory production economical. As the C.D. Howe Institute notes, "Productivity gains will only materialize if governments focus more on removing the frictions that prevent innovative builders from operating at scale" .

What Reform Could Look Like

Policy experts have proposed several pathways to address these regulatory barriers:

First, publish multi-year procurement roadmaps. Off-site manufacturing depends on predictable, portfolio-scale demand. A provincial roadmap in British Columbia that consolidates housing needs across ministries, Crown agencies, and municipalities would give factories confidence to invest in automation, skilled labour, and supply chains .

Second, deploy a national catalogue of pre-approved residential structures. Inspired by post-war housing programs, the federal government took a step in this direction in 2024 by publishing a catalogue of house models that comply with various provincial building codes . Expanding this approach with prefab models could streamline approvals while respecting local design preferences.

Third, consider Japanese-style zoning harmonization. Japan's national government has established 12 standardized zones with prescribed norms for setbacks, heights, and floor area ratios that municipalities must use . A Canadian adaptation, implemented at the provincial level, could provide predictability while respecting local circumstances.

Fourth, address municipal development charges. These fees can account for as much as 25 percent of new house prices. The C.D. Howe Institute suggests considering temporary moratoriums, with federal and provincial governments covering revenue losses for several years to enable innovative builders to gain momentum .

Fifth, streamline approvals for module transportation. Oversize loads face permitting hurdles that can delay projects. As Modular BC has noted, transportation ministries and local governments need to streamline approvals for very large loads .

The Workforce Dimension

Even with policy reform and investment, scaling prefabrication requires workers. The residential construction industry must add approximately 187,300 workers by 2034, factoring in retirements . Prefabricated methods can help address this challenge by requiring less on-site skilled labour, but they also demand new skills in factory settings.

Federal workforce investments are targeting this need. The Canadian Apprenticeship Strategy, Labour Market Agreements, and programs focused on Indigenous skills training, foreign credential recognition, and youth employment are all contributing to building the prefabrication workforce . The government has also announced new Workforce Alliances that bring together employers, unions, training institutions, and industry groups to tackle urgent labour market challenges .

Risks and Realities

For all its promise, the shift to prefabricated housing carries risks that policy must address.

The parliamentary budget officer recently estimated that Build Canada Homes will only deliver 26,000 of the 690,000 homes needed nationwide by 2030 . This shortfall raises questions about whether government interventions can achieve their ambitious goals. However, Build Canada Homes' mandate extends beyond direct construction—its true legacy may be catalyzing a paradigm shift in how Canada builds .

Another risk involves market acceptance. As the British Columbia Real Estate Association highlights: "The homebuying (and renting) public will need to shift their perception of prefabricated housing. Structures built using off-site construction methods aren't just for mining camps, trailers, and temporary shelters anymore" .

There are also concerns about local employment impacts. Transforming a highly decentralized construction industry into centralized production chains offers efficiency gains but risks local job losses and potentially lower wages due to hyper-specialization .

The Path Forward: From Promise to Practice

The scale of Canada's housing crisis demands solutions that move beyond incremental improvements to traditional methods. Prefabricated construction offers a pathway to build faster, cleaner, and more affordably, but only if policy and investment address the real-world barriers that have constrained the sector for decades. The C.D. Howe Institute offers a measured assessment: "Understanding that factory-built housing is not a panacea for all of Canada's ongoing housing challenges, a cautious approach is necessary. The government should 'look before it leaps,' grounding policy decisions in rigorous, Canada-specific research to understand where these technologies work best" . Yet caution need not mean inaction. The elements of a comprehensive strategy are emerging: financing reform, regulatory harmonization, workforce development, and predictable public procurement. What's required now is coordination across federal, provincial, and municipal governments to implement these solutions at scale.

As Tore Jacobsen and Baldev Gill of the Fraser Valley Real Estate Board recently wrote, "If governments fail to move quickly on financing, zoning harmonization, and procurement roadmaps, Canada could end up importing homes instead of manufacturing them, forfeiting thousands of potential jobs and billions in domestic investment" .

The opportunity before Canada is significant. With natural advantages in timber, land, and skilled labour, prefabrication should be a made-in-Canada solution . The question is whether policy and investment can successfully bridge the distance from factory floor to finished foundation and in doing so, build not just homes, but an entirely new Canadian industry.