The $600-Per-Square-Foot Question Nobody Is Asking [5/28/26]

Subsidized affordable housing in Portland costs approximately twice as much to build as market-rate apartments. That gap has enormous implications for how the region thinks about solving its housing shortage.

by HFO Market Research (Aaron Kirk Douglas)

Portland has spent years debating affordable housing—how much to build, who pays for it, and whether developers are doing their part. What rarely surfaces in that conversation is a straightforward cost comparison: what does a publicly subsidized unit actually cost per square foot, and how does that stack up against what a private developer spends to build market-rate apartments?

The numbers, when placed side by side, tell a story the region’s housing advocates and policymakers tend to avoid.

According to an analysis by the Cascade Policy Institute of Metro’s 2018 Affordable Housing Bond portfolio, subsidized housing in Portland averages close to $800 per square foot to build (gross SF). Suburban projects run somewhat lower, roughly $600 to $700 per square foot—approximately two times the cost of private-sector housing. Individual projects within the portfolio are more extreme: one Gresham project came in at $942 per square foot; a North Portland development called Albina One was built at $909 per square foot; and at least one six-story Portland project exceeded $1,000 per square foot.

Market Rate Multifamily Construction is Less Expensive

Market-rate multifamily construction in the Portland metro, by comparison, runs at a fraction of that. A 2024 Portland residential development cost study by consulting firm BAE Urban Economics — commissioned by the city itself — found that hard construction costs for a typical multifamily prototype in Portland run close to $250,000 per unit, with total all-in development costs averaging roughly $423,000 per unit, or about $423 per livable square foot. Nationally, the average cost per square foot to build a mid-rise multifamily project runs around $310, according to industry benchmarks.

The Portland Housing Bureau reports an average total unit cost of $470,133 across its bond-funded affordable housing portfolio, according to its January 2026 report on housing bond outcomes. The city’s own budget office has placed the figure closer to $490,000, with an average direct city subsidy of $150,000 per unit. Metro’s bond program has deployed $469 million in taxpayer funds, which it says leveraged $1.95 billion in total investment to produce 4,078 affordable homes.

What’s causing the exorbitant gap in spending on affordable housing?

The per-square-foot gap between subsidized and market-rate construction is not simply a matter of higher-quality finishes in affordable projects. Several structural cost drivers push subsidized housing well above the costs private developers incur.

First, prevailing wage requirements apply to publicly funded projects, raising labor costs above market. Second, the layered financing structures that affordable housing requires—stacking federal low-income housing tax credits, Metro bond proceeds, Portland Housing Bureau funds, and other sources—each carry their own transaction costs, compliance overhead, and underwriting timelines. Third, the Cascade Policy Institute analysis found that Metro awarded all of its bond grants to nonprofit housing developers, and that nonprofits, on average, retain 12 percent of project funds as developer fees. Studies have also found that low-income housing projects built by nonprofit groups cost roughly 20 percent more per square foot than those built by for-profit developers, according to the same analysis. Fourth, Metro’s preference for mid-rise construction compounds costs: the institute’s data shows that average per-square-foot costs rise with each additional story, with higher-floor projects consistently the most expensive in the portfolio.

Average Cost of Multifamily Construction in 2025

The average cost to construct multifamily in Portland at the end of 2025 was $325-415 per square foot of living space, according to Rider Levett Bucknall,a firm that tracks construction costs nationally.

None of these figures is an argument against building subsidized housing. Deeply affordable units serving households at 30 percent of area median income—the population exiting homelessness and the most cost-burdened renters—cannot pencil without public subsidy under any market conditions. The question is not whether to subsidize, but whether the current production model is the most efficient use of limited public dollars.

The scale of Portland’s affordable housing need makes that question unavoidable. The Portland Housing Bureau estimates the city needs approximately 59,000 permanently affordable rental units, according to a May 2026 analysis by Hoodline citing PHB data. The Metro Housing Bond—the region’s most significant recent public housing investment—is now 87 percent allocated, with the final project breaking ground in 2026, according to Street Roots. At current average production costs of $470,000 to $490,000 per unit, meeting even half of the 59,000-unit need through bond-funded construction alone would require expenditures approaching $15 billion.

Deliveries by Rent Type, 2016-2025, Portland Metro

What This Means for Owners and Investors

Market-rate multifamily owners and subsidized housing operators occupy largely separate worlds—but the cost dynamics of public housing production have direct implications for private owners. Every dollar spent producing a $490,000 subsidized unit is a dollar unavailable for preservation, acquisition programs, or incentive structures that could bring private capital off the sidelines at lower per-unit cost. As the Metro Housing Bond nears full allocation with no confirmed successor program, the region enters a period of declining public production against a backdrop of already-depressed private construction.

Per the City of Portland’s own data, permits have fallen 75%—its lowest pace in more than a decade. The supply drought that follows the current construction slowdown may be more severe than most rent forecasts currently reflect. For owners with well-located existing assets, that supply gap will eventually reassert itself in occupancy and rent performance.

Ideas for Future Legislative Measures That Could Help With Housing and Supply in Oregon

Legislation that would:

• Increase rental assistance for those facing housing instability
• Make changes to rent assistance that prioritize veterans, people with documented disabilities, and seniors over 65 with incomes at or below 50% MFI
• Promote and educate the next generation of renters on the basics of renting
• Help provide renters insurance for renters under 50% AMI
• Allocate money towards the preservation of existing affordable housing
• Extend tax credit status for affordable housing so as not to displace vulnerable tenants
• Promote public-private partnerships that transfer ownership of affordable multifamily housing to nonprofits to help establish first-time home-buying options
• Ease or waive the cost of system development charges.
• Establish long-term financing models for housing
• Promote and financially support infrastructure expansion