The consensus read on new single-family home inventory data is that supply is finally healing a broken market. The numbers from the Census Bureau tell a more uncomfortable story for the builders carrying that inventory.
New Single-Family Home Inventory at Multi-Year Highs, but Demand Is Not Following
New single-family home inventory at all stages of construction rose to 495,000 units in July, the fourth consecutive month of month-to-month increases. Compared to July 2019, inventory has risen by 71%. In the Midwest, the jump was particularly sharp: inventory climbed 18% year-over-year and 60% from July 2019, reaching 59,000 homes, the highest level since 2008. The South, which accounts for 61% of total inventory and 63% of sales, sits near all-time highs, down just 4% from the record set in July last year.
The problem is that buyers are not showing up at the pace the supply build implies. Sales of new single-family homes fell by 5.7% year-over-year in July to 55,000 homes, and were down 9% compared to July 2019. The three-month average of sales declined 0.6% from a year ago, the seventh consecutive month of year-over-year declines. Homebuilders are now sitting on 9.6 months of supply nationally. In the Midwest, that figure has ballooned to nearly 15 months.
The regional breakdown is worth dwelling on. In the South, sales fell 6% year-over-year and were 9% below 2019 levels, even as builders hold close to 10 months of supply. In the West, sales were flat year-over-year but down 15% from 2019, with supply at 9.4 months. The Northeast, where multifamily construction dominates, saw inventory rise 3% year-over-year and 14% from 2019, to 33,000 homes.
The Price Compression the Headlines Understate
The median price of new single-family homes sold in July fell 1% year-over-year and 8.2% from two years ago, to $393,800, the lowest since September 2021. From the peak in October 2022, the decline stands at 14%. The three-month average median came in at $404,400, down 1.5% year-over-year and 7.2% from two years ago, the lowest since October 2021.
Here is where the popular read may be underweighting the real pressure. Those Census Bureau figures reflect only the prices written into sales contracts. They do not capture the incentives or the cost of mortgage-rate buydowns that builders have deployed to keep transactions moving. Those costs appear in the average selling prices builders report in their own financial statements, and the gap between the two is where builder margins go to die.
The operational reality at the largest builders illustrates this precisely. According to The Globe and Mail, D.R. Horton’s average selling price of home deliveries fell 6.7% year-over-year to $393,000 in the first nine months of fiscal 2025, down from $421,000 in the prior-year period. Over that same stretch, D.R. Horton’s home sales gross margin contracted 130 basis points to 22.1%. That is the visible cost of keeping volumes afloat with lower price points and incentive stacking.
Share prices have registered the verdict. D.R. Horton and Lennar, the two biggest builders, have fallen 25% and 52% respectively since mid-September 2024. The equity market is not pricing in a smooth transition to a higher-supply equilibrium; it is pricing in sustained margin compression with an uncertain demand floor.
Completed homes for sale, the category where builder capital is most exposed, rose to 114,000 in July, up 50% from July 2019 and up 170% from July 2021. These are largely move-in ready properties on which builders have already spent the construction capital and now need to recover it through sales. Under-construction inventory dipped to 262,000 homes, down 10% year-over-year, partly because completions moved units into the completed category.
The supply argument, that new single-family home inventory is doing exactly what a structurally undersupplied market needs, is not wrong in the long run. But the near-term arithmetic is less tidy. Builders are accumulating finished homes faster than buyers are absorbing them, cutting prices and buying down mortgage rates to close the gap, and absorbing the cost in margins that have already contracted meaningfully. The Census Bureau’s next monthly release will show whether July’s sales softness was seasonal noise or the seventh data point in a trend that the inventory figures already imply.
