September data shows housing market in a deep freeze

September brought a sharp housing slowdown. Pending home sales, which track signed contracts on existing homes, fell 7.3% from August and 11.3% from a year earlier. Single-family housing starts also weakened, while building permits pointed to less construction ahead.

Starts dropped 4.56% to an annualized 859,000, their lowest level since September 2025. Permits, a measure of future construction, fell 4% during the month. These figures show that the pullback affected both buyers and builders.

The main pressure was rapidly rising mortgage rates. The average 30-year fixed rate climbed from about 6.8% to 7.6% in September, making purchases harder to afford. Builders were also using price cuts and incentives, which reduced profit margins. Nationwide economist Ben Ayers expects construction to remain weak into 2027.

Pending home sales measure signed contracts on existing homes. A contract means a buyer and seller have agreed to a deal, but the purchase has not necessarily closed yet. The measure therefore captures activity earlier than completed home-sale data.

That timing makes pending sales useful as an early signal. If signed contracts rise, more completed sales may follow. If they fall, future closings and related housing activity may weaken. In September, pending sales dropped 7.3% from August and 11.3% year-over-year.

The decline also reflects the conditions buyers faced while shopping. The average 30-year fixed mortgage rate rose from about 6.8% at the start of September to 7.6% by month-end. Lawrence Yun said mortgage-rate changes affect affordability more than job growth and income gains do.

The average 30-year fixed mortgage rate climbed sharply during September. It began the month around 6.8% and reached 7.6% by the end, according to Mortgage News Daily. The increase was about 0.8 percentage points.

That movement matters because the rate influences the cost of borrowing for new buyers. For the same loan amount and repayment term, a higher interest rate generally produces a larger monthly payment. Alternatively, buyers must borrow less to keep their payment within budget.

The timing matched a broad housing slowdown. September pending home sales fell 7.3% from August and 11.3% year-over-year. Single-family starts fell 4.56%, and permits dropped 4%. The article links these pressures to affordability challenges and says higher rates kept more buyers on the sidelines.

Mortgage rates are part of a home's affordability because they determine how much interest borrowers pay over time. When rates rise, a buyer financing the same amount usually faces a higher monthly payment. That can push the payment beyond the buyer's budget.

For example, a buyer may have planned around a specific monthly payment. If the rate rises from 6.8% to 7.6%, that payment supports a smaller loan, assuming the term and other conditions stay the same. The buyer may then need to offer less, search for a cheaper home, or delay purchasing.

The article connects this mechanism to September's results. Pending home sales fell 7.3% from August. Lawrence Yun said affordability is more affected by mortgage-rate changes than by job growth and income gains. Robert Dietz said higher rates kept more buyers on the sidelines.

The South and West recorded the largest month-to-month declines in pending home sales. Sales fell 8.2% in the South and 9.2% in the West. The article identifies important regional context for interpreting those numbers.

The South is usually the nation's most active housing market. The West is usually the most expensive. A sharp decline in the South signals weakness in the largest activity center, while a large drop in the West shows how strongly affordability pressures affected a high-cost region.

The declines occurred as mortgage rates rose rapidly. The average 30-year fixed rate moved from about 6.8% to 7.6% during September. Higher rates made financing more difficult nationwide, but their effect was especially visible in these two major regions. Overall, sales declined across the country.

Housing starts measure homes beginning construction, while building permits measure approvals for future construction. Builder sentiment adds a forward-looking view from the industry, including current sales, expected future sales, and buyer traffic. Together, they show both present activity and builders' expectations.

In September, single-family starts fell 4.56% to 859,000 annualized, their lowest level since September 2025. Permits fell 4%, suggesting less construction may be planned. In October, homebuilder sentiment reached its lowest level in 14 years. Current sales, future sales expectations, and buyer traffic all declined.

The combined signals point to a weak construction outlook. Builders were using price cuts and incentives to unload projects, reducing profit margins. Ben Ayers expects home construction to remain moribund into 2027, with low single-family starts potentially weighing modestly on economic growth.

A fixed-rate mortgage keeps its interest rate unchanged for the loan's repayment period. The monthly payment still depends on the amount borrowed, the interest rate, and the repayment term. Therefore, changing the starting rate changes the payment even when the home price and term stay the same.

Suppose two buyers borrow the same amount for the same term. The buyer receiving the higher rate pays more each month because more interest is charged. If the buyer can afford only a fixed monthly payment, the higher rate means that budget supports a smaller loan. Borrowing power falls.

This mechanism helps explain September's housing weakness. The average 30-year fixed rate rose from about 6.8% to 7.6%. Pending sales fell 7.3% from August, while housing starts and permits also declined. Higher financing costs made affordability harder for new buyers.