New Construction: Should You Use the Builder's Preferred Lender?
A builder's preferred lender can be a genuinely good deal — or a shiny distraction that costs you more than it saves. In Sacramento's new-build communities like Folsom Ranch, Lincoln, Elk Grove, Natomas, and El Dorado Hills, builders dangle rate buydowns and closing-cost credits, but almost always with one string attached: you have to finance through their in-house lender. The smart move isn't to say yes or no on instinct. It's to get one competing loan estimate and compare the all-in cost. Here's how to read the offer like a pro so a flashy incentive doesn't quietly cost you at the closing table.
Why builders push their own lender
It's not a scam — it's a business model. Builders often own or partner with the mortgage company, so keeping your loan in-house makes them money and gives them tighter control of the closing timeline. To get you there, they offer incentives you only receive if you use their lender.
Here's the important legal line: under federal rules (RESPA), a builder cannot require you to use their lender to buy the home. What they can do is tie thousands of dollars in incentives to that choice. That's completely legal — and it's why the offer can feel like an ultimatum even though it isn't one.
The incentives are real — but so are the strings
The credits builders offer can be substantial: rate buydowns, closing-cost credits, free upgrades. Sometimes the builder's deal genuinely is the best one available. The problem is you can't know that until you compare it to something. Taking the incentive without shopping is like accepting the first car price on the lot because the salesperson smiled.
Five things a builder incentive can quietly hide
1. A temporary buydown that expires
"Your rate is only 4.99%!" sounds incredible in a 6.5% market — until you read that it's a 2-1 buydown. That means your rate is bought down for the first two years, then jumps back to the real note rate (say 6.99%) for the remaining 28. Your payment can rise by hundreds of dollars in year three. A temporary buydown isn't bad, but you need to know it's temporary and budget for the reset.
2. A higher base price
A "$20,000 lender credit" feels like a gift. But if the home is priced $20,000 above what a comparable resale down the street would fetch, the builder simply handed you back part of your own money. Incentives are easiest to give when the price has room built in. Check recent comparable sales before you celebrate the credit.
3. A long build and rate-lock games
New homes can take six to twelve months to finish. Over that stretch, rates move. The builder's lender may offer an extended rate lock — but extended locks cost money, and the terms matter. Ask pointedly: Can I lock now? What does a float-down cost if rates fall? What happens to my incentive if my closing date slips? These answers can be worth more than the headline credit.
4. Fees that eat the credit
A big closing-cost credit means little if the lender's own fees are inflated to match. The only apples-to-apples comparison is the Loan Estimate — the standardized form every lender must give you — and specifically the APR, which folds the rate and the fees into one number. A lower headline rate with fatter fees can cost more than a slightly higher rate with lean fees.
5. Appraisal and upgrade pressure
In-house lenders and builders share an interest in getting the deal closed at the contract price. Make sure your appraisal is ordered fairly, and be clear-eyed about upgrades — the design-center markups on flooring and finishes are where builders make a lot of their margin, and financing them means paying interest on them for 30 years.
The one move that protects you
Everything above collapses into a single, simple habit: get one competing Loan Estimate from an independent lender and lay it next to the builder's offer. Compare the APR, the fees, the rate after any buydown expires, and the total cash to close. If the builder's deal wins, take it with confidence. If it doesn't, you now have leverage — sometimes just showing the builder a better estimate gets them to match or improve their terms.
You're not being difficult by shopping. You're doing the exact thing that protects tens of thousands of dollars over the life of your loan. Any builder worth buying from expects it.
What's negotiable — and what isn't
What to compare
Builder's lender
Independent lender
Note rate (after any buydown ends)
Ask for it in writing
Compare directly
APR (rate + fees combined)
On the Loan Estimate
On the Loan Estimate
Total lender fees
Often offset by credit
Often leaner
Rate-lock length & float-down
Key for long builds
Compare terms
Incentive if you switch lenders
Usually forfeited
N/A
Base price & upgrade costs
Sometimes has room built in
Same home, compare comps
A useful rule of thumb: the base price of a new build is usually the least negotiable number, while upgrades, lot premiums, and closing credits have more give. Focus your energy where the flexibility actually is.
Don't forget the Mello-Roos
One more new-construction cost that has nothing to do with the lender but everything to do with your payment: many Sacramento-area new builds carry Mello-Roos special assessments that can add meaningfully to your annual taxes for decades. It's a separate topic worth understanding fully before you fall for a floor plan — because it changes how much home you can actually afford.
A quick note on 2026 incentives
Builder incentives shift constantly with the market. In mid-2026, with 30-year rates in the high-6% range (roughly 6.5%–6.75%), builders were leaning heavily on rate buydowns to keep payments attractive — which makes understanding temporary vs. permanent buydowns more important than ever.
Always get the specifics in writing: the rate after any buydown expires, the incentive amount, and exactly what you forfeit if you use a different lender. Verbal promises at the design center don't close loans.
Frequently asked questions
Can a builder force me to use their lender?
No. Federal law prohibits builders from requiring their in-house lender. They can, however, legally tie incentives to that choice — which is why the offer can feel mandatory even though it isn't.
Is the builder's lender ever the best deal?
Sometimes, yes — especially when the incentive is a genuine rate buydown or a large closing credit. The only way to know is to compare it against an independent Loan Estimate. Don't assume it's the best or the worst without checking.
What's a 2-1 buydown and why does it matter?
It temporarily lowers your rate for the first two years, then it returns to the full note rate for the rest of the loan. Your payment can jump significantly in year three, so you need to know the permanent rate and budget for it — not just the teaser payment.
Should I still get pre-approved with an outside lender?
Absolutely. An independent pre-approval gives you a real benchmark to compare the builder's offer against, and it gives you negotiating leverage. Many buyers keep an outside lender in their back pocket even while considering the builder's deal.
What if the builder's rate looks way lower than everyone else's?
Look closer — it's often a temporary buydown or comes with fees baked in elsewhere. Compare the APR on the Loan Estimate, not the sticker rate, and confirm what the rate becomes once any buydown expires.
Thinking about a Sacramento new build?
Before you sign at the design center, get a straight-shooting second Loan Estimate to compare against the builder's offer. It costs you nothing, it takes minutes, and it's the single best way to make sure a shiny incentive is actually saving you money — not just moving it around.
Call or text: (916) 794-0777
thechriskennedyteam.com
The Chris Kennedy Team at Reliant Lending | NMLS #971546. Serving Sacramento, Placer, El Dorado, and Yolo Counties. Equal Housing Opportunity. Rates, loan limits, and program terms referenced are current as of July 2026 and are subject to change. This is not a commitment to lend.