The U.S. housing market is facing another setback as buyers continue to pull back from newly built homes, highlighting the growing affordability challenge facing both households and homebuilders.

According to the latest federal housing data, sales of newly built single-family homes fell 10.5% in July to a seasonally adjusted annual rate of 607,000 homes. Sales were 6.3% lower than a year earlier and came in below economists' expectations of roughly 620,000 homes.

The decline is significant because builders have been working aggressively to attract buyers. With mortgage rates remaining elevated, many builders have turned to price reductions, mortgage-rate buydowns, closing-cost assistance and other incentives to make their homes more affordable.

Those efforts have helped push prices lower. The median price of a newly built home fell to $393,800, its lowest level in about four years and approximately 0.9% below the price recorded a year earlier.

For buyers, that represents a meaningful change from the rapid price increases seen during the pandemic housing boom. But lower prices alone have not been enough to bring demand back strongly.

Mortgage rates remain a major obstacle. Even when builders reduce prices or offer financing incentives, buyers still have to qualify for monthly payments that remain significantly higher than they were when mortgage rates were near historic lows. For many households, particularly first-time buyers, that monthly cost continues to determine whether purchasing a home is financially realistic.

Consumer sentiment is also showing signs of weakness. Only 5.2% of consumers said they planned to purchase a home within the next six months, down from 6.5% in July and the lowest reading in more than five years. That suggests the problem extends beyond the cost of available homes. Many households are becoming less confident about making a major financial commitment in the current economic environment.

The weakness in new-home sales is particularly important because builders play a critical role in addressing the nation's housing shortage. Unlike existing homeowners, builders have the ability to add new inventory to the market. But when sales slow, developers have less incentive to start additional projects, particularly when land, labor, materials and financing remain expensive.

That creates a difficult situation for the housing market. America needs more homes, but builders need buyers who can afford them.

The latest numbers also show why the housing market cannot be evaluated simply by looking at inventory. More homes may be available, and new-home prices may be coming down, but affordability remains constrained by borrowing costs and household incomes.

Builders are therefore being forced to compete more aggressively for a smaller pool of qualified buyers. Incentives can reduce the effective cost of purchasing a new home, but they also put pressure on builders' profit margins. Companies must balance the need to move inventory with the rising cost of construction and financing future developments.

The July sales decline also comes as the broader housing market struggles to regain momentum. Existing-home sales have remained relatively subdued, while elevated mortgage rates continue discouraging homeowners from moving and buyers from entering the market.

Still, the decline in new-home prices could eventually create an opportunity for buyers if financing conditions improve. If mortgage rates fall, households could suddenly have more purchasing power while builders are already offering lower prices and incentives.

For now, however, the message from the July data is clear: lower prices are not enough to overcome today's affordability pressures.

The U.S. housing market continues to face a fundamental challenge. There is a long-term shortage of homes, but the households that need those homes are struggling to afford them. Until mortgage rates, home prices or incomes move enough to close that gap, new-home sales are likely to remain under pressure.

The housing shortage remains real—but so does the affordability crisis.