A new analysis, published on August 26, 2026, highlights how builder mortgage rate buy-downs are creating a distorted view of housing prices, a phenomenon that could affect the Florence real estate market. These incentives allow new homes to sell at prices significantly higher than what builders actually realize, potentially leaving buyers with hidden financial risks.
The practice involves builders offering subsidized mortgage rates to buyers, making homes appear more affordable on a monthly payment basis. However, the reported average selling price (ASP) often reflects a gross sticker price that includes these incentives, rather than the net revenue the builder receives. For instance, Lennar’s Q2 2026 net ASP of $371,000, with a 12.9% incentive rate, implies a gross sticker price near $426,000. This $55,000 difference creates a gap between the recorded price and the builder’s true realization.
This distortion extends beyond the initial sale, impacting appraisals, recorded deeds, government-sponsored entity (GSE) loan-to-value calculations, and comparable home sales (comps). Appraisals often support the inflated gross price because the comparable sales they rely on are prior builder sales where concessions are rarely itemized. Fannie Mae requires concession analysis, but adjustments occur in less than 42% of cases due to a lack of standardized data. Consequently, the recorded deed reflects the higher price, and GSEs compute loan-to-value against this inflated figure.
The resale market is particularly affected. While rate lock-in is a primary factor in the current resale freeze, builder buy-downs exacerbate the issue. Existing home sales are roughly seven times greater than new construction. When resale properties are priced based on these inflated new-build sticker prices, sellers list their homes at levels that buyers, without access to builder-funded buy-downs, cannot afford at the prevailing 6.65% mortgage rate. This leads to listings sitting on the market and existing home sales reaching multi-decade lows.
Consumers ultimately bear the cost of these buy-downs. The practice transfers mark-to-market risk from builders to buyers who take the subsidized deals, often those with the least equity cushion and refinance flexibility. A buyer qualifying at a bought-down rate of 4.9% instead of the market rate of 6.65% might face negative equity or substantial exit costs even without a broader market decline. The gap between the recorded price ($426,000) and the resale-clearing price ($371,000) represents a significant potential loss for the homeowner upon exit, even if the home’s value has not declined.
To prevent recurrence, three reforms are proposed. First, the Uniform Appraisal Dataset (UAD) 3.6, mandatory as of November 2, 2026, should add a field for builder-paid buy-down present-value cost. Second, the Real Estate Standards Organization Data Dictionary and multiple listing service standards should adopt a parallel field for public listings. Third, aggregators like Zillow and Redfin should display concession-adjusted comps as the default. These changes aim to provide more transparent pricing signals, potentially easing secondary-market stagnation.
