The Builder Down the Street Can Buy Your Exit Buyer a 6.40% Rate. Starts and Permits Land Tuesday.

By Steve Waller · October 19, 2026

Where Sunday left it

The weekly recap closed on a spread: the ten-year Treasury had given back 15 basis points, but Freddie Mac's 30-year held at 7.40%, and the question for this week was whether your resale buyer's rate would follow the benchmark down. Friday gave a partial answer. Mortgage News Daily's 30-year index ended the week at 7.37%, up 0.04 on the day but down 0.11 on the week, after touching 7.33% Thursday. The Federal Reserve's H.15 release has the ten-year at 5.10% Thursday, and it closed Friday in about the same place.

So the fast index is moving and the slow one has not caught up yet. That gap matters less this week than a different one: the gap between what a builder can offer your buyer and what a resale seller usually offers.

The builders report twice this week

The NAHB/Wells Fargo Housing Market Index for October comes out this morning at 10:00 ET, and Census publishes September housing starts and permits on Tuesday. The September builder survey set the bar:

• The index fell 3 points to 32, its weakest reading in a year. Current sales conditions fell to 35 and buyer traffic sat at 23.
• 38% of builders cut prices, up from 35% in August, with the average cut holding at 6% for a sixth straight month.
• 66% used sales incentives, up from 63% and the highest share since December.

Census's August report showed the other half of it. Total starts ran at a 1,275,000 annual rate, down 2.6% on the month, but single-family starts rose 7.6% to 918,000. Permits fell 2.7% to 1,394,000. Completions dropped 27.1% from a year earlier. Builders are still starting houses, finishing fewer of them, and paying more to sell the ones they finish.

What a buydown does to your exit

The most common incentive is money toward the buyer's rate. A resale seller rarely offers it. Here is what it is worth, on the house this brief has used all autumn: a $330,000 Houston median, 20% down, a $264,000 loan.

• At 7.40%, principal and interest is $1,828 a month.
• Buy the rate down one point to 6.40% and the payment falls to $1,651, about $177 a month less.
• To get a buyer to that same $1,651 at 7.40% with no buydown, the loan has to shrink to about $238,500. That is $25,500 less loan, or roughly $31,900 less house at 80%.

Put another way, a buyer shopping a new house with a buydown and your finished flip at the same price is not comparing the same payment. Your house has to be worth more to him by something close to that gap, or priced lower.

What this does to a deal you are underwriting now

Fix and flip. If new construction competes in your subdivision or the next one over, underwrite the exit against the builder's payment, not the builder's list price. The cheapest way to match it is usually a seller credit toward the buyer's rate, within what the buyer's loan program allows, and that credit comes out of your margin. Put it in the budget as a line, not a hope.

Long-term rental. The same incentives that pull resale buyers also pull renters who can now qualify to buy new. The takeout still prices off the ten-year, which is near 5.10%, and the coverage test is still decided in the last sixty dollars.

Ground-up construction. You are the builder in this comparison. If your exit is a sale, price the incentive into the pro forma from day one. If 66% of builders are offering one, the buyer will expect one from you.

Multifamily. Falling completions do help small multifamily. Fewer finished single-family houses keeps renters in place longer. That supports occupancy, not rent growth.

These figures are illustrations, not quotes. ACP does not publish rates. Use the rate on your own term sheet.

Houston

HAR's September report, covered Sunday, still frames the local exit: more than 40,000 active listings, 58 days on market and pending sales down 11.6%. A resale seller in that market is competing with other resale sellers and with builders who pay to sell. On the buy side, that is the setting in which a seller accepts a number built from the formula: ARV times 70 to 75 percent, less repairs, less closing costs.

The week ahead

• Monday, October 19. NAHB Housing Market Index for October, 10:00am ET. Read the share cutting prices and the share using incentives before the headline number.
• Tuesday, October 20. Census New Residential Construction for September, 8:30am ET. The single-family starts line and completions are the two to watch.
• Wednesday, October 21. Twenty-year Treasury bond reopening.
• Thursday, October 22. Freddie Mac's weekly survey. A print below 7.40% would be the first sign the slow index is following the fast one.
• Tuesday and Wednesday, October 27 and 28. The FOMC meeting, with the target range at 3.75 to 4.00 percent.

The full report, and every earlier one, is available on ACP's website at acp-lending.com. Investors can sign up at acp-lending.com/investor-brief to receive new reports by email.

Sources

• Mortgage News Daily, MND Rate Index
• Federal Reserve, H.15 Selected Interest Rates
• Freddie Mac, Primary Mortgage Market Survey
• U.S. Census Bureau, New Residential Construction, August 2026
• NAHB/Wells Fargo Housing Market Index, September 2026 (via Mortgage Professional America)
• Houston Association of Realtors, Market Updates

Market data is from public sources and is provided for information only. Nothing here is an offer of credit, a rate quote, or investment advice. Financing is subject to underwriting, lender approval, appraisal or valuation, title, insurance, property eligibility and program availability.

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