U.S. home building slowed in September, with housing starts falling to their lowest pace in four months and permits edging lower, as the highest mortgage rates in nearly three years and dismal builder confidence kept a lid on construction, data released Tuesday by the Census Bureau showed.
Housing starts fell 5.2 percent in September to a seasonally adjusted annual rate of 1.221 million units, from a revised 1.288 million in August, and were 7.4 percent below September 2025. Building permits, a guide to future construction, slipped 0.2 percent to 1.400 million. Single-family starts fell 4.6 percent to 859,000, and single-family permits dropped 4.0 percent to 845,000.
The Census Bureau itself cautions that the monthly moves in starts are within the survey’s margin of error, and it takes months to establish a trend. But several firmer measures point the same way. Housing completions were 14.0 percent below a year earlier. Starts of buildings with five or more units fell 25.9 percent from a year ago. Starts in the West dropped 23.2 percent in the month, while the South, the country’s largest home-building region, rose 6.1 percent.
The cost of borrowing is the central problem. The average 30-year fixed mortgage rate reached 7.40 percent in the week before the data were released, the highest in nearly three years, according to Freddie Mac figures reported by Reuters. Builders surveyed by the National Association of Home Builders are the gloomiest they have been in more than a decade: the NAHB/Wells Fargo confidence index fell to 29 in October, its lowest since June 2012, with 43 percent of builders cutting prices — the highest share in the survey’s 2020–2026 run — and nearly two-thirds offering sales incentives. “Housing remains squeezed by supply-side constraints and significant affordability challenges,” said NAHB chief economist Robert Dietz. “Demand persists, but higher mortgage rates, elevated construction costs and weaker consumer confidence are keeping more buyers on the sidelines.”
Analysts noted by Reuters say weak single-family building suggests residential investment fell again in the third quarter after a brief rebound, and that a growing stock of unsold new homes gives builders little reason to break ground even while the country remains short of housing overall — one reason prices have stayed high despite slow sales. With affordability a central issue ahead of the November 3 midterm elections, the September figures add to the pressure on policymakers, though the Federal Reserve’s rate path will matter more to builders than any single month’s data.
What it means for buyers: fewer completed homes — completions ran at 1.192 million in September — keep competition tight for finished houses, while builders’ price cuts and incentives make new construction the softest corner of the market for those who can qualify at today’s rates. The Census Bureau releases October construction data on November 18.
Sources: U.S. Census Bureau and HUD, Monthly New Residential Construction, September 2026 (Release CB26-162); Reuters, October 20, 2026; National Association of Home Builders, October 19, 2026.
