Builder confidence in the U.S. market for newly built single-family homes posted a modest three-point gain in May 2026, reaching a reading of 37 on the NAHB/Wells Fargo Housing Market Index (HMI) — but that number still sits significantly below the 50-point threshold that separates conditions builders view as good from those they view as poor. More telling than the monthly tick: May marks the 14th consecutive month the HMI has remained below 50, the longest sustained period of below-midpoint confidence since the post-pandemic rate shock of 2022–2023, per the National Association of Home Builders.

The sustained weakness reflects a housing construction sector caught between forces that are largely outside its control: a mortgage rate environment anchored above 7 percent, construction cost pressures from tariffs on key materials, and macroeconomic uncertainty that is making potential buyers hesitate even when they can afford to act.

The Three HMI Sub-Indices All Rose — But Remain Weak

All three of the HMI's component indices improved in May, per the NAHB:

• Current sales conditions: 40 (up 3 from April's 37)
• Expected sales over the next six months: 45 (up 3 from April's 42)
• Traffic of prospective buyers: 25 (up 3 from April's 22)

The buyer traffic index at 25 is particularly notable. That reading indicates the vast majority of builders are experiencing low to very low foot traffic from prospective purchasers — a sign that affordability headwinds are keeping potential buyers from even beginning the shopping process, let alone committing to a contract.

Regionally, the three-month moving averages show the Midwest as the relative bright spot at 43, the Northeast at 42, the South at 35, and the West at 28. The West's persistently low reading reflects the combination of elevated home prices in California and Mountain West markets compounded by high borrowing costs, according to NAHB Chief Economist Robert Dietz, who noted in the release that "recent increases for long-term interest rates will continue to hold back home buyer demand."

The Cost and Rate Squeeze on Builders

NAHB Chairman Bill Owens, a home builder and remodeler from Ohio, identified the dual pressures in plain terms: "The housing market remains soft as higher mortgage rates, rising gas prices and economic uncertainty related to the war in Iran continue to dampen buyer demand." The reference to geopolitical uncertainty reflects a broader household confidence dynamic that has reduced discretionary spending across the economy, including large commitments like new home purchases.

On the cost side, builders continue to contend with elevated land, labor, and material costs. AGC's Tariff Resource Center, updated May 20, 2026, confirms that steel and aluminum now carry 50 percent Section 232 tariffs on items made entirely or substantially of those metals, with lumber facing a 10 percent tariff and derivatives at 25 percent. These tariff floors have been in place since mid-2025 and remain unaffected by February 2026's Supreme Court ruling striking down broader IEEPA-based tariffs, per Utility Dive's February 2026 analysis.

The NAHB survey found that 32 percent of builders cut prices in May, down from 36 percent in April — a slight improvement suggesting some stabilization. But the average price reduction was 6 percent in May, up from 5 percent in April, indicating that those who are cutting are cutting more deeply to move inventory. Sales incentives were used by 61 percent of builders in May — the 14th consecutive month at 60 percent or higher.

The Housing Starts Picture

The HMI data aligns with Census Bureau housing starts figures. Total new residential construction in April 2026 came in at a seasonally adjusted annual rate of 1.465 million units, according to Census Bureau data. Single-family starts ran at 930,000 annualized units — down 9.0 percent from March and 2.4 percent below April 2025. Single-family starts are down 5.1 percent year-to-date, a meaningful deceleration from the brief recovery seen in late 2025.

Multifamily has been the brighter story, with starts at 535,000 annualized units in April — up 10.3 percent from March and 19.7 percent year-over-year, per the Census Bureau and NAHB's Eye on Housing blog. The multifamily strength reflects continued apartment demand driven by affordability constraints preventing household formation into ownership — a dynamic that simultaneously depresses single-family construction and supports rental development.

The 4-Million-Home Gap

Behind the monthly sentiment readings and starts data lies a structural issue that is unlikely to resolve quickly. The U.S. housing market carries a documented supply shortfall of roughly 4 million homes — a figure cited by both the NAHB and the U.S. Chamber of Commerce, which noted in early 2026 that the average U.S. home value has risen nearly 33 percent over the past five years to approximately $357,445, per the U.S. Chamber.

The gap is not closing. With single-family construction running below the pace needed to absorb population growth and household formation, and with mortgage rates keeping existing homeowners in their current homes (avoiding a move that would mean trading a 3-percent mortgage for a 7-percent one), the inventory problem compounds year after year. The 21st Century ROAD to Housing Act, signed earlier in May, begins to address some regulatory barriers to new construction, but its effects will take years to be felt at scale, per NAHB Chairman Owens' comments referencing congressional action as a reason for cautious optimism.

What Contractors Should Watch

For residential construction contractors, the HMI data suggests caution for the remainder of 2026. Single-family builder activity is likely to remain constrained until either mortgage rates decline materially or affordability improves through income growth. The strongest regional markets — Midwest and Northeast — warrant closer attention for bid opportunities. Multifamily work is the clearer near-term opportunity, with strong pipeline indicators and continued investor appetite for rental development in supply-constrained markets.

The HMI's forward-looking component — sales expectations over the next six months at 45 — suggests builders see a possible gradual improvement but not a rapid recovery. For the construction industry broadly, the sustained weakness in residential activity reinforces the importance of nonresidential diversification, a trend already visible in April's employment data showing residential construction down nearly 50,000 jobs year-over-year while nonresidential added nearly 99,000.

Sources

National Association of Home Builders — Builder Sentiment Posts Gain in May (May 18, 2026)
U.S. Census Bureau — New Residential Construction, April 2026 (May 21, 2026)
NAHB Eye on Housing — Single-Family Starts Fall Amid Economic Uncertainty (May 2026)
Associated General Contractors of America — Tariff Resource Center for Contractors (updated May 20, 2026)
Utility Dive — What the Supreme Court Tariff Ruling Means for Construction (February 2026)
U.S. Chamber of Commerce — The State of Housing in America (2026)