Builder's Preferred Lender vs. Your Own Broker in Frisco, Katy and Cumming

Quick answer (updated October 2026): You don't have to use a builder preferred lender. Under RESPA's affiliated business rules, a builder must disclose its lender relationship and generally can't require you to use it. But builders can tie incentives to their lender, and those can be worth thousands. The right move is to compare the full Loan Estimate, incentive included, against an outside quote.

The new-build communities in Frisco, Prosper, Katy's Elyson and Cane Island, and Cumming's Forsyth County subdivisions are full of desi families. So are the sales offices. You'll hear the same line in all of them: "Use our lender and we'll give you $15,000 toward closing costs or a rate buydown."

Sometimes that's the best deal on the table. Sometimes the incentive is quietly recovered through a higher rate, more points or a lender that won't touch your H-1B. This guide shows you how to tell the difference, what the law says, and how to run the comparison in one afternoon.

Do I have to use the builder's lender?

No. Here's what the rules say, as of October 2026:

• Disclosure is required. When a builder refers you to a lender it owns part of, RESPA's Regulation X (12 CFR 1024.15) requires a written Affiliated Business Arrangement Disclosure, on a separate page, at or before the referral.

• Required use is generally prohibited. The arrangement is only protected if the builder doesn't require you to use the affiliated lender.

• Incentives are common. Builders routinely offer closing-cost credits or buydowns that apply only if you use their preferred lender. Using an outside lender typically means giving up that incentive, not losing the house.

Read the purchase contract carefully. Some builder contracts require you to get prequalified by their lender even if you finance elsewhere, or set tight deadlines for loan approval. Those clauses matter more than the sales pitch.

Builder incentives with a preferred lender: what you're really comparing

A builder preferred lender offer has three moving parts: the incentive amount, the rate and points, and the lender's fees. You need all three to compare.

Illustration only. Say Kavya and Arjun are buying a $560,000 home in Katy with a $450,000 loan. The builder offers $15,000 if they use its lender. An outside lender's rate is assumed at the Freddie Mac weekly average of 7.40% for October 15, 2026 (illustration only, not a quote or offer). The preferred-lender rates are hypothetical to show what a rate gap costs.

Scenario	Rate	Monthly P&I	Extra cost over 7 years vs. 7.40%	Net value of $15,000 incentive after 7 years
Outside lender, no incentive	7.40%	$3,116	—	$0
Preferred lender, same rate	7.40%	$3,116	$0	+$15,000
Preferred lender, 0.25% higher	7.65%	$3,193	$6,477	+$8,523
Preferred lender, 0.50% higher	7.90%	$3,271	$13,013	+$1,987

If the preferred lender prices the same as the market, take the incentive. If its rate runs half a point higher, most of the incentive is gone within seven years, and it's gone faster if you also pay more in origination fees. That's why you compare Loan Estimates, not flyers.

How to compare Loan Estimates line by line

Get both Loan Estimates on the same day, same loan amount, same lock period. Then check:

1. Page 1, interest rate and Projected Payments. Is the rate a permanent note rate or a temporary buydown rate?

2. Page 2, Section A (Origination Charges). Points and lender fees. A low rate bought with 1.5 points isn't cheaper.

3. Section B (Services You Cannot Shop For). Appraisal, credit report, flood cert. Should be similar.

4. Section J (Lender Credits). Is the builder incentive shown, or is it a separate seller credit on the contract?

5. Page 3, Total Interest Percentage and "In 5 Years." A quick apples-to-apples summary.

6. Lock term. New construction often needs a 60- to 120-day lock or longer. Longer locks usually cost more.

If you're choosing between a temporary and permanent buydown with the incentive, run the math in our 2-1 buydown vs. builder buydown guide.

Talk to a loan officer who's seen this before: Send us the builder's incentive addendum and the preferred lender's Loan Estimate. We'll show you what the same loan looks like across our wholesale lenders, and whether the incentive is worth it after rate and fees. Start at /contact.

The visa problem with a captive new construction lender

Builder-affiliated lenders are often a single lender with a single rulebook. If that lender has a visa overlay, you have nowhere else to go inside that channel.

Common overlays we see at single lenders:

• Minimum remaining validity on the I-797 or EAD at closing

• No EAD-only borrowers, or no H-4 EAD income

• Larger down payment requirements for non-permanent residents

• Extra scrutiny when a visa expires before a long build finishes

None of these come from Fannie Mae, which treats non-permanent residents on the same terms as citizens and publishes no visa list. Our guide to mortgage lender overlays for visa holders explains why one lender's "no" isn't the market's answer. And if your visa may expire mid-build, read new construction when your visa expires before the build finishes.

A practical move: get both

Many buyers do this. Apply with the builder preferred lender to satisfy the contract and keep the incentive alive. At the same time, get a full outside quote. If the preferred lender declines or reprices you, you have a fallback ready, and the builder can't claim you missed the financing deadline because your loan stalled.

Frisco, Katy and Cumming: local costs that change the comparison

The payment that matters isn't just principal and interest. Each area has its own extras that affect DTI and therefore which lender can approve you.

Area	Local factor to check	Why it matters
Frisco / Prosper / Celina, TX	PID assessments, MUD taxes in some subdivisions	Raises total payment and DTI. See PID vs. MUD in Frisco and Prosper
Katy / Fulshear / Richmond, TX	MUD taxes, flood zone status	Raises escrow. See MUD taxes in Katy and Sugar Land
Cumming / Forsyth County, GA	HOA dues, new-construction tax reassessment	First-year escrow often underestimated

A builder lender sometimes estimates taxes on the unimproved lot value, which makes the first-year payment look low. Ask both lenders how they estimated property tax.

When the builder preferred lender is the right call

Using the builder's lender isn't wrong. It wins when:

• The incentive is large and the rate and fees are competitive

• Your file is simple (W-2, strong credit, green card or citizen, or a visa the lender accepts)

• The lender coordinates well with the builder's construction timeline and extended locks

• An outside lender can't offer a comparable credit

It loses when the rate gap eats the incentive, the lender has visa overlays you can't meet, or the lender's processing problems put your closing date at risk.

What the rules actually say

• RESPA, Regulation X, 12 CFR 1024.15: Affiliated business arrangements require a written disclosure at or before referral, and the referring party generally may not require use of the affiliated provider, as of October 2026.

• Fannie Mae Selling Guide B3-4.1-02: Builder and seller contributions are interested party contributions, capped at 3%, 6% or 9% depending on CLTV for primary residences.

• Fannie Mae Selling Guide B2-2-02 (07/28/2015): Non-permanent residents eligible on the same terms as citizens; visa restrictions are lender overlays.

• Freddie Mac PMMS, week of Oct 15, 2026: 30-year fixed 7.40% (illustration only, not a quote or offer).

Frequently Asked Questions

Q: Can a builder force me to use its preferred lender?
A: Generally no. A builder can offer incentives for using its lender, but under RESPA's affiliated business rules it generally can't require you to use an affiliated lender. Read the contract for financing deadlines and prequalification clauses, and talk to a real estate attorney if anything looks like a requirement.

Q: Will I lose my builder incentive if I use my own lender?
A: Usually, yes. Most builder incentives apply only with the preferred lender. That's why you compare the net cost after the incentive. If the preferred lender's rate and fees are close to market, the incentive often wins.

Q: Do builder preferred lenders work with H-1B buyers?
A: Some do, some don't, and some add overlays like minimum visa validity. Because a builder's lender is usually one lender with one set of rules, ask directly about your visa type before signing. Have an outside option ready.

Q: Can I apply with the builder lender and another lender at the same time?
A: Yes, and many buyers should. Mortgage credit inquiries in a short window are typically treated as one by FICO. Applying with both protects your timeline and gives you a real comparison.

Q: What lock period do I need for new construction?
A: It depends on the build timeline. Many buyers lock 60 to 120 days out, and some lenders offer longer locks for a fee. Ask who pays extension costs if the builder runs late.

Get a side-by-side before you sign the incentive addendum

Before you commit to a builder preferred lender, let us run a side-by-side lender overlay comparison against our 150+ wholesale lenders: rate, points, lender fees, lock length and visa eligibility, with the builder's incentive included. We work with new-construction buyers in Frisco, Katy, Cumming and beyond every week. Have the builder's Loan Estimate, the incentive addendum and your I-797 or green card handy. Book a free 15-minute call at /contact, start your application at /apply, or call 713-366-4668.

Masala Loans is a brand of Matador Lending, LLC (NMLS #2072896). Written by Apurva Sanghavi, President, NMLS #227127. Equal Housing Opportunity. This article is general education, not tax, legal or immigration advice — consult a qualified CPA, attorney or immigration lawyer for your situation. Program availability, rates and terms vary by lender and borrower and are subject to change; not a commitment to lend.