US housing starts unexpectedly fall in September, signaling weaker residential construction

The Commerce Department reported on October 20 that US housing starts fell 5.2% in September to a seasonally adjusted annual rate of 1.221 million homes. Economists had expected a 2% increase to 1.300 million, making the result another decline rather than the anticipated rebound.^[1][2]

Housing starts count homes where construction has begun. The annual rate translates September’s seasonally adjusted pace into a full-year figure; it is neither the number actually started that month nor a forecast. Building permits, approvals generally needed before construction begins, also fell 0.2%, offering a view of the pipeline of potential projects.^[2]

Fewer starts mean fewer new projects entering construction. If that persists, homebuilders face weaker production volumes and less new demand for lumber, building materials and construction services. The small decline in permits offers no clear sign that the project pipeline will quickly make up the shortfall. These aggregate figures do not establish why construction slowed or prove that home sales fell.^[1][2]

Financing costs are an important condition for what follows: higher mortgage rates generally increase buyers’ monthly payments and can push builders to offer discounts or incentives to secure sales. The 10-year Treasury yield stood at 5.12% on October 20, down just 0.03 percentage points from 5.15% the previous session. Treasury yields influence mortgage pricing but do not determine it one-for-one; that small decline alone does not establish that housing financing pressure has eased.

Impact

What to watch next

• October 21: The MBA 30-year mortgage-rate release, previously 7.5%, will help show whether financing costs for homebuyers are beginning to ease.
• October 27: September new-home sales will help test whether slower construction coincided with weaker sales or relatively resilient buyer demand.