U.S. residential construction activity weakened in September, adding pressure to builders navigating financing expenses, material costs and affordability constraints. The latest federal housing data show declines across both single-family and multifamily starts, signalling a slower pace of new housing production compared with the previous month.
Housing starts fell 5.2% to a seasonally adjusted annual rate of 1.22 million units, according to figures released by the U.S. Department of Housing and Urban Development and the U.S. Census Bureau on Oct. 20, 2026. The annualized rate represents the number of units that would begin construction over 12 months if the September pace continued.
Single-family housing starts declined 4.6% in September to an annualized rate of 859,000 units. Despite the monthly decrease, the segment remained 2.6% above its September 2025 level.
Multifamily starts, which include apartments and condominiums, fell 6.7% to an annualized rate of 362,000 units. The figure was 24.9% below the same month a year earlier, indicating a substantially weaker pace of construction in this segment.
Year-to-date regional figures for combined single-family and multifamily starts showed an uneven pattern. Activity was up 8.3% in the Northeast, while the Midwest declined 2%, the South fell 0.3% and the West decreased 6.3%.
These regional differences provide important context for developers and contractors assessing local demand, project pipelines and opportunities in residential construction.
Overall building permits edged down 0.2% in September to a seasonally adjusted annual rate of 1.40 million units.
Single-family permits fell 4% to an annualized rate of 845,000 units, putting them 4.8% below September 2025. Multifamily permits moved in the opposite direction, increasing 6.1% from August to an annualized rate of 555,000 units. Despite the monthly increase, multifamily permits remained 0.2% below their year-earlier level.
Year-to-date permit activity also varied by region. The Northeast recorded a 10.6% increase, and the Midwest rose 2.2%. The South declined 3.2%, while the West remained unchanged.
Permit activity offers an indication of the potential future construction pipeline, although not every approved project proceeds to a start.
The September figures underscore the challenges facing residential developers, home builders and construction businesses as financing conditions and input costs affect project feasibility. Land expenses, labour availability and building material prices also influence budgets and decisions about when to proceed with new housing developments.
For contractors and suppliers, changes in single-family and multifamily starts can affect expected workloads, procurement planning and demand for construction services. Regional differences also highlight the importance of evaluating local market conditions rather than relying solely on national figures.
The combination of lower starts and mixed permit activity points to continued uncertainty across the U.S. housing construction market. Builders and developers will need to weigh project costs, financing requirements and local demand when planning upcoming residential work.
Source: NAHB.
