US Construction Spending Falls 1.9% in September as Home Building Drops
Direct answer
US construction spending fell 1.9% in September 2026, to a seasonally adjusted annual rate of $2,186.1 billion. That was weaker than economists expected, and the drop was led by a sharp fall in spending on homes.
What happened
The US Census Bureau reported the September figures on November 2, 2026. Total spending fell 1.9% from a revised August estimate of $2,227.4 billion, and it was 2.7% lower than in September 2025. Economists polled by Reuters had expected a rise of 0.3%, so the result was a clear surprise on the weak side. August was revised up to a 2.0% increase, from a previously reported 0.9% rise, which makes the September reversal stand out even more.
Private construction fell 2.4% in September, to $1,639.3 billion. Within that total, residential construction fell 5.5% in a single month, to $848.8 billion. Reuters reported that high materials costs likely depressed spending on residential renovation projects. Spending on single family homes was unchanged from August but 2.4% lower than a year earlier, while spending on multifamily homes edged up 0.1%.
Not every part of construction fell. Private nonresidential construction rose 1.1%, to $790.6 billion, with spending on power plants up 1.2%. Public construction dipped 0.1%, to $546.8 billion. State and local government construction fell 0.3%, while federal government projects rose 2.5%. Highway construction was $149.2 billion, down 0.3%, and educational construction was $113.1 billion, virtually unchanged.
For the first nine months of 2026, total construction spending was $1,649.6 billion, 2.9% below the same period in 2025.
Why it matters for beginners
Construction spending is a simple way to see how much building work is actually being done, in dollars. When it falls, it can mean fewer homes being built or renovated, less work for builders and suppliers, and slower demand for materials such as lumber and steel. That matters because housing is a large part of household wealth and everyday costs, and building activity feeds into wider economic growth.
The September drop does not mean the whole economy suddenly shrank. The US economy grew at a 3.4% annual rate in the third quarter, as covered in the post on US economic growth in Q3 2026. Construction is only one piece of that picture, and monthly figures are often revised. Still, a 5.5% monthly fall in residential spending is a strong signal that home building and renovation cooled sharply in September, at a time when mortgage rates have been pushed up by the US-Israeli war with Iran, according to Reuters.
What to watch next
Watch the next Census construction spending release to see whether September is revised and whether October rebounds or falls again. Also watch housing starts and building permits, which show new projects in the pipeline, and mortgage rates, which affect how affordable it is to buy or renovate a home. If residential spending stays weak while nonresidential spending holds up, the slowdown will look more like a housing story than a broad building slump.
FAQ
What is construction spending?
It is the dollar value of work put in place on building projects in a month, adjusted for seasonal patterns and shown as an annual rate. It is not the amount spent in that single month alone.
Why did spending fall in September?
The Census data show the fall was concentrated in private residential work, down 5.5%. Reuters linked that weakness to high materials costs depressing renovation spending.
Does a fall in construction spending mean a recession?
No, not on its own. It is one monthly indicator, it is subject to revision, and other parts of the economy can grow at the same time. It is best read alongside jobs, consumer spending, and other housing data.
What is a seasonally adjusted annual rate?
It takes the month’s spending, adjusts for normal seasonal patterns, and scales it up to what a full year would look like at that pace. It makes months easier to compare, but it is not a forecast for the full year.
