Should you use the builder's lender, or shop it yourself?
Phoenix has one of the most active new-construction markets in the country, and builders almost always steer buyers toward a preferred or in-house lender with an incentive attached. Sometimes that's genuinely the best deal. Sometimes it isn't. Here's how to tell.
You're not required to use the builder's lender
Builders can require you to get pre-approved through their preferred lender as a condition of a purchase contract, but they cannot legally require you to actually close your loan with that lender — and a lender cannot legally pay a builder for referring you. What builders can do is offer real incentives — rate buydowns, closing cost credits, design upgrade allowances — that are only available if you finance through their preferred partner. That's a legitimate business arrangement, not a trick, but it means the decision comes down to real math, not brand loyalty.
What builder incentives typically look like
- Closing cost credits — the builder covers some or all of your closing costs if you use their lender.
- Rate buydowns — the builder pays points to temporarily or permanently lower your interest rate.
- Design or upgrade credits — value applied toward finishes, appliances, or structural options rather than cash.
- Extended or more flexible rate locks — useful since new-construction closing dates often slip, and builder-affiliated lenders are typically more used to that timeline than an outside lender might be.
Where the incentive can cost more than it saves
The incentive is real, but so is the trade-off: builder-preferred lenders sometimes price their rate or fees slightly higher than an independent broker would, banking on the incentive being worth more than the difference. Whether that's true depends entirely on the actual numbers — not the size of the credit advertised.
Get a written Loan Estimate from the builder's lender and a written estimate from an independent broker for the identical loan amount and rate lock period. Compare rate, APR, total closing costs, and monthly payment side by side — not just the advertised incentive amount. A $5,000 credit sounds significant, but a rate that's 0.5% higher can cost more than that within a few years of payments.
How I approach a new-construction purchase
- Get you pre-approved independently first, so you have a real baseline to compare against — before the builder's sales office ever presents their offer.
- Once you have the builder's incentive terms in writing, I compare them directly against what I can offer, line by line.
- If the builder's deal is genuinely better, I'll tell you so — the goal is your best outcome, not necessarily my file.
- If an independent loan comes out ahead once the full picture is compared, we can sometimes still negotiate with the builder to apply incentives even when financing outside their preferred lender — it doesn't hurt to ask.
Frequently asked questions
Can a builder require me to use their preferred lender?
They can require a pre-approval from their preferred lender as a condition of the purchase contract in some cases, but they cannot legally require you to actually close your loan with that lender. Incentives tied to that lender, however, are usually contingent on you completing the loan with them.
Is the builder's incentive always the better deal?
Not always. Get a written Loan Estimate from both the builder's lender and an independent option, and compare total cost — rate, fees, and the incentive itself — rather than assuming the advertised credit automatically wins.