Most new construction purchases use a construction-to-permanent loan, which covers the cost of the build and then converts into a standard mortgage once the home is finished. During construction, you typically pay interest only on the funds drawn so far, and the payment grows as the builder reaches each milestone. The lock timing is where many buyers get caught. Builders often ask you to lock a rate months before the expected completion date, and when schedules slip, a lock can expire before the house is ready. With rates still elevated and sensitive to economic news, I would rather build in a longer lock with a clear extension policy than chase a short lock and hope.

Builder incentives can be real savings, but they need to be compared carefully. A rate buydown, a closing cost credit, or a design upgrade may look attractive on paper, yet the builder's preferred lender does not always have the most competitive pricing. Ask whether a buydown is temporary or permanent, and whether it applies to the loan you actually qualify for. Appraisals on new construction are usually based on plans and specifications before the home is complete, so the contract price needs to be defensible against those figures. In parts of the Dallas-Fort Worth area, municipal utility districts and special assessments can add meaningful costs to the monthly payment, so ask for the full tax picture before you commit to a price.

If you are buying a new build, get preapproved by the lender who will fund your loan, not just the one the builder recommends. Ask the builder to put the expected closing date and any delay policies in writing, and find out what happens to your rate if the date moves. Keep a financial cushion for interest payments and extra rent if you are renting while the home finishes. If you are selling a current home to fund the purchase, line up the timing so you are not carrying two housing payments for months. Buyers who plan for the schedule, not just the price, tend to have the smoothest closings.