Sometimes. The rate incentives are real, but the builder is paying for them somewhere, so compare the whole deal instead of the headline rate. When a builder's affiliated lender advertises a well-below-market rate, that is usually a buydown the builder funds out of its own margin to keep sales moving. It is a sales tool, and the cost is baked into the price and terms. There is no free money in housing; a credit like that is given in lieu of a lower price, and you finance the difference for as long as you own the home. The right comparison is total cost: the buydown rate and any incentives against the home's price, the lot, and what a comparable resale would run you. In higher-cost areas, new construction often sits at premium price points on smaller lots, so a great rate on an expensive home can still lose to an ordinary rate on a resale that fits your life better. Two protections: - You can use your own lender. Even when the incentive is tied to the builder's lender, you are allowed to shop. Get an independent quote and make the builder's lender earn the business on total cost. - Nothing about agent compensation is automatic. Commission arrangements are negotiable, so do not assume the builder covers your representation. Settle it in writing before you register at the sales office. If it helps, we can put the builder's package next to an independent quote on a free Roadmap conversation so you see the real all-in numbers side by side.