By Prerna Kapoor, CLHMS | REAL Brokerage | June 28, 2026
A few of my new-construction buyers this spring have mentioned the same thing – the builder’s sales office keeps pushing their “preferred lender” with a rate that sounds too good to pass up. Sometimes it is a great deal. Sometimes it is not, and you only find that out after you have already signed.
The Incentive Builders Dangle
Most production builders in Colorado own or partner with a mortgage company, and they have a real reason to want you using it – it keeps the deal moving on their timeline and the profit in the family of companies. The incentive usually shows up as a rate buydown, a credit toward closing costs, or both, and it can genuinely be worth several thousand dollars.
The Consumer Financial Protection Bureau has flagged these “affiliated business arrangements” for years precisely because the incentive can cloud the comparison – you are being offered savings on one line item while potentially paying more on another, like the interest rate itself or loan fees buried in the closing disclosure. The CFPB’s own guidance on affiliated lenders is worth five minutes of your time before you sign anything.
What You Give Up When You Skip the Comparison
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Freddie Mac’s research on rate shopping has consistently shown that borrowers who only get one quote pay more, on average, than those who compare offers from a couple of lenders. Their published analysis puts the typical savings from shopping at meaningfully more than the cost of the extra paperwork.
I have seen this play out here in Parker and Aurora more than once – a buyer gets excited about the builder’s credit, skips calling an outside lender entirely, and never finds out whether a local credit union or bank could have beaten the rate without the strings attached, like a shorter rate-lock window or a higher minimum credit score for the discount to apply.
How to Actually Compare the Two Offers
Get a Loan Estimate from the builder’s lender and a Loan Estimate from at least one outside lender, ideally within the same week so rates are apples to apples. Line up the interest rate, the APR, total closing costs, and the cash you would need at closing after any builder credit is applied. The APR matters more than the headline rate because it folds in points and fees the rate alone hides.
Colorado’s Division of Real Estate requires written disclosure of affiliated business relationships for exactly this reason – you are entitled to know the builder and the lender share an owner before you decide. Read that disclosure. DORA’s consumer resources page is a good place to understand your rights as a buyer in these arrangements.
What I Tell My Clients
The builder’s lender is not automatically the wrong choice, and in plenty of cases this spring it has genuinely been the better one once you run the numbers. What I will not let a client do is sign without the comparison. If you are under contract on a new build right now and have not gotten a second quote, that is the one phone call I would make today, before your rate-lock window gets any shorter.
If you are weighing financing on a new-construction purchase more broadly, I put together a full breakdown of how Colorado buyers are structuring these deals in my Colorado Buyer Financing Playbook – it covers buydowns, concessions, and how to read a Loan Estimate side by side.
Quick answers
Do I have to use the builder’s lender to get the incentive?
Usually, yes. The rate buydown or credit is typically tied to closing with their affiliated lender. If you finance elsewhere, you generally lose that specific credit, though you can sometimes negotiate a different concession instead.
Is it illegal for a builder to require their own lender?
No, but they are required to disclose the affiliated relationship and they cannot require you to use that lender as a condition of the purchase contract itself under RESPA. You can usually still buy the home and finance elsewhere.
How do I know if the builder’s rate is actually competitive?
Get a second Loan Estimate from an outside lender in the same week and compare APR and total closing costs side by side, not just the headline rate.
Prerna Kapoor | REALTOR® | Luxury Home Specialist
REAL Brokerage | 720-949-5450 | info@prernakapoor.com
CLHMS • RENE • PSA • ABR | International Sterling Society Award Winner
Prerna specializes in residential real estate across Parker, Aurora, Lone Tree, Castle Pines,
Highlands Ranch, Cherry Creek, Greenwood Village, and Centennial. She speaks English, Japanese,
and Hindi.
