Rates Close the Week at a One-Year High of 7.24% — Builders Are Winning the Split Market

Mortgage rates ended the week where they started a new chapter. The average 30-year fixed opened Monday at 7.03% and closed Thursday at 7.24% — up 21 basis points on the week — setting a new one-year high in each of its last two published sessions, according to Mortgage Daily's weekly recap. The 15-year fixed closed the week at 6.52%.

The rising-rate story has a split ending, though. Sales of new single-family homes ran at a 684,000 annualized pace in August, up 6.4% from July, per Census Bureau data — while existing-home sales slipped 2% to 3.98 million. Builders are making it happen by cutting prices and buying down buyers' rates: the median new-home price fell 5.8% from a year earlier to $393,700, and new-home inventory stood at 8.5 months of supply. As Catenaa's analysis put it, 'builders can cut prices and buy down rates, while existing owners cannot. As a result, new and resale markets have moved apart this year.'

The affordability picture keeps getting uglier. Federal Reserve Governor Michael Barr said one leading affordability index hit its lowest level in 21 years in July 2026, calling affordability the worst in decades. NPR's Scott Horsley noted the psychological weight of the 7% range and that August home sales were the slowest in 14 months — a slump that spills into furniture, appliances, and the broader economy.

For South Bay buyers, the split market is the actionable part. In a market dominated by resale like ours — where the rare new product is a 43-townhome Toll Brothers community starting near $2 million — you can't count on a builder buydown to bail you out. That means the usual discipline applies even harder: shop multiple lenders, ask about buydowns paid from seller concessions, and remember that the higher the rate, the more valuable a price reduction on an aging listing becomes.

Source: Mortgage Daily weekly recap — https://www.mortgagedaily.com/rates/mortgage-rates-weekly-recap-2026-09-26/ ; Catenaa — https://catenaa.com/markets/economy/mortgage-rates-top-7-percent-again/

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