US single-family housing starts tumble in September
Key Takeaway: New economic figures show a sharp cooling in residential construction across the nation, impacting regional real estate markets including California as borrowing costs climb.
Single-family housing starts fell 4.6% to 859,000 units in September 2026 on a seasonally adjusted annual rate basis, according to the U.S. Census Bureau in release CB26-162 issued on Tuesday, October 20, 2026, at 8:30 AM EDT. August figures were revised to 900,000 units.
The numbers
National construction metrics reflected widespread pullbacks across both single-family and multi-family categories. Total housing starts fell 5.2% to 1,221,000, marking a four-month low Bloomberg reported. Single-family building permits, or authorizations, dropped 4.0% to 845,000, with August revised to 880,000. Total building permits stood at 1,400,000, dipping 0.2% from August’s 1,403,000, which included 503,000 units in buildings with five or more units.
Total housing completions rose 2.2% to 1,192,000 compared to August’s 1,166,000, the Census Bureau said, though single-family completions dropped 2.4% to 840,000 and five-plus-unit completions reached 339,000.
Why builders are pulling back
Surging mortgage rates are heavily weighing on market activity, with the 30-year fixed rate averaging 7.40% last week, the highest level in nearly three years, according to Reuters, citing Freddie Mac data. Sentiment among single-family homebuilders plunged in October to the lowest level since June 2012, based on an NAHB survey released Monday. Reuters noted that the NAHB blamed rising material costs and mortgage rates, more expensive diesel and ‘worsening’ labour conditions amid an immigration crackdown.
Reuters also linked the rate pressure to the bond market, noting that Treasury yields have climbed and borrowing costs are following. The wire service tied that move to inflationary pressure from the US-Israeli war with Iran. The same report noted that President Donald Trump earlier this year refused to sign a bipartisan housing affordability bill, calling it ‘a big yawn’, as he pressed Congress to first pass separate voting requirements.
What it means for buyers
Residential investment rebounded in the second quarter, reflecting renovations as well and making a small contribution to GDP after five straight quarterly declines. However, the September data suggests the declining trend resumed in the third quarter, Reuters reported.
Traders Union reported that 30-year mortgage rates jumping to 7.40% are eroding home affordability, with builder sentiment at its lowest since June 2012 amid a supply glut.
Key Story Metrics
| Figure | Reported Status |
|---|---|
| Single-family housing starts | 859,000 SAAR (down 4.6%) |
| Single-family building permits | 845,000 SAAR (down 4.0%) |
| Total housing starts | 1,221,000 SAAR (down 5.2%) |
| Total building permits | 1,400,000 SAAR (down 0.2%) |
| Total housing completions | 1,192,000 SAAR (up 2.2%) |
| 30-year fixed mortgage rate | 7.40% average (Freddie Mac, highest in nearly 3 years) |
✓ Verified
The 859,000 single-family starts figure and 4.6% fall, the 845,000 single-family permits figure and 4.0% fall, total starts of 1,221,000 and the 5.2% fall, total permits of 1,400,000, completions of 1,192,000, the Freddie Mac 7.40% mortgage-rate figure, the NAHB October sentiment reading at its lowest since June 2012, the Q2 residential-investment rebound after five quarterly declines, Census release CB26-162 dated October 20, 2026, and the next release date of November 18, 2026 are all confirmed across the Census Bureau release and multi-source reporting.
⚠ Still needs confirmation
Bloomberg’s report that total starts trailed all estimates in a Bloomberg survey of economists remains a single-source, partially paywalled claim. The causal claim linking Treasury yields to the US-Israeli war with Iran reflects Reuters framing only, and Trump’s housing-affordability-bill episode was reported by Reuters only. Statistical caveat: the Census release itself gives 90% confidence intervals of plus or minus 11.8 points on the -5.2% total-starts change and plus or minus 10.0 points on the -4.6% single-family change, so the month-over-month declines are not statistically distinguishable from zero.
Frequently Asked Questions
How far did single-family housing starts fall in September?
They fell 4.6% to a seasonally adjusted annual rate of 859,000 units, according to the Census Bureau.
What about total housing starts and permits?
Total starts fell 5.2% to 1,221,000, a four-month low, while total permits were 1,400,000, down 0.2% from August.
Are the monthly declines statistically significant?
The Census Bureau’s own release gives wide 90% confidence intervals (plus or minus 11.8 points for total starts, plus or minus 10.0 for single-family), so the reported month-over-month declines are not statistically distinguishable from zero.
What is driving the weakness?
Mortgage rates at 7.40%, the highest in nearly three years, plus rising material and diesel costs and worsening labour conditions, according to Reuters and the NAHB.
When is the next release?
November 18, 2026.
- Reuters: US single-family housing starts, building permits tumble in September
- Bloomberg: US Housing Starts Fall to Four-Month Low as Demand Falters
- U.S. Census Bureau / HUD: Monthly New Residential Construction, September 2026 (CB26-162)
- U.S. News & World Report Money: US Single-Family Housing Starts, Building Permits Tumble in September
- Traders Union: U.S. single-family housing starts and permits fall in September as mortgage rates climb
Editor’s note: Reporting drawn from the Census Bureau’s September 2026 release and wire reports from Reuters and Bloomberg.
