Builder's Preferred Lender:
Use Their Lender or Bring Your Own?

Why the Builder Is Offering You a Rate That Looks Too Good to Be True

You saw the Facebook ad: "New homes from $499K — 3.99% interest rate." Or you walked into a sales center and the agent mentioned "use our preferred lender and we'll cover $15,000 of your closing costs." Before you reach for your pre-approval application, understand what's actually happening — because builder financing incentives are real financial tools, not scams, but they are designed to serve the builder's interests first.

DHI Mortgage (DR Horton), Taylor Morrison Home Funding, Eagle Home Mortgage (Lennar), and Pulte Mortgage — these are not independent lenders who happen to have relationships with builders. They are wholly-owned subsidiaries or affiliated entities of the builders themselves. When you get a mortgage from DHI Mortgage, the interest margin from your loan flows back into the same corporate family as the builder who sold you the home. This is not a conflict of interest that makes the loan bad — but it does mean you should understand who benefits from your choice.

The Four Reasons Builders Push Their In-House Lender

1. Profit: Mortgage origination and servicing is a significant revenue stream. Public builders' mortgage subsidiaries contribute meaningfully to earnings. Every loan you take through their preferred lender is revenue they capture instead of losing to a bank or credit union.
2. Timeline control: When your builder is also your lender, they control the closing pace. Independent lenders may need extensions that push homes into the next quarter and complicate earnings reports. Builder lenders are motivated to close on the builder's schedule — not necessarily the buyer's best schedule.
3. Data: Your pre-approval application reveals your complete financial profile. The authorization forms for builder lender applications are often broader than third-party lenders. Understand what you're authorizing them to share internally.
4. Cross-selling revenue: Builder lenders often have affiliated title companies, home warranty providers, and homeowner's insurance providers. Your mortgage origination opens the door to cross-selling multiple services — each with a referral arrangement. The total revenue from your transaction, across all these channels, is often larger than the mortgage margin alone.

How Builder Low Rates Actually Work: Three Mechanisms

Mechanism 1: Permanent Rate Buydown (The Real Deal)

A permanent rate buydown is what it sounds like: the builder pays discount points to permanently reduce your mortgage interest rate for the life of the loan. Discount points cost approximately 1% of the loan amount per 0.25% rate reduction (though this ratio varies with market conditions).

Example: Market rate is 6.75%. Builder pays 3 discount points on a $600K loan = $18,000. This buys the rate down to approximately 5.5–5.75% permanently. Over 30 years, the difference in interest paid between 6.75% and 5.5% on a $600K loan is approximately $150,000–$175,000. The builder spends $18,000 to give you $150K+ in value? How does this pencil out for them?

The builder recoups through: (1) charging a premium on the home price to cover the buydown cost — typically the home is priced $15K–$30K above what an equivalent home without the incentive would cost, (2) capturing the mortgage origination profit through their affiliated lender, and (3) capturing title and settlement service revenue through affiliated entities. The permanent buydown is real — if a builder genuinely offers a rate 1%+ below market permanently, that is meaningful value for buyers, and the math favors taking it.

Mechanism 2: Temporary 2/1 or 3/2/1 Buydown (The Common Confusion)

The 2/1 temporary buydown is the financing tool most commonly confused with a permanent rate. Here is exactly how it works:

The builder funds a "buydown reserve" — an escrow account that contains approximately $8,000–$15,000 (on a $600K loan) that subsidizes the difference between your 4.75% payment and the note rate of 6.75% in Year 1, then the difference between 5.75% and 6.75% in Year 2. This buydown reserve may be forfeited to the lender if you refinance before it's exhausted.

The Critical Math of Temporary Buydowns

Over a 2-year period, the 2/1 buydown saves approximately $18,000–$22,000 in payments compared to paying market rate from Day 1. The builder's cost to fund this is approximately $10,000–$15,000. The "incentive" to you is the difference — roughly $5,000–$10,000 in genuine value over two years. After Year 2, you're at the same market rate as a buyer who took no incentive from Day 1.

The question is: what will happen in Year 3? Many buyers who take 2/1 buydowns plan to refinance before the rate steps up to market — "rates will drop and I'll refi in 18 months." This is a reasonable strategy IF rates actually do drop. If they don't — or if your financial situation changes and you can't refinance — you face a $760/month payment increase in Year 3 compared to your Year 1 payment. Budget for the full market payment from Day 1 regardless of what buydown you accept.

Mechanism 3: Higher Price + Credit (The Hidden Trade-Off)

This mechanism is the most subtle and the most common. The builder prices a specific home — or a phase of homes — at $20,000–$40,000 above comparable homes in the market (or comparable homes in the same community in a previous phase). They then offer $15,000–$20,000 in "closing cost credits" tied to using their preferred lender.

The buyer sees: "I'm getting $15,000 back at closing." What's actually happening: the buyer is financing the credit amount into a higher loan balance. A $650,000 purchase with a $15,000 credit, versus a $630,000 purchase with no credit — net, the buyer has a $20,000 higher loan balance. Over 30 years at 6.75%, that extra $20,000 in loan balance costs approximately $46,800 in total interest. The "free" $15,000 credit cost the buyer $31,800 over time.

This is not always the case — sometimes builder credits genuinely reflect builder generosity or marketing in a competitive phase. But you need to verify whether the home is priced at market or above market BEFORE calculating the value of any credit.

The Dual Pre-Approval Strategy: The Correct Approach

Here is the step-by-step process that experienced new construction buyers should follow — regardless of which builder they're purchasing from.

Step 1: Get Pre-Approved by an Independent Lender First

Before visiting any builder's sales center, get pre-approved by an independent lender: a mortgage broker who shops multiple wholesale lenders, your credit union, or a bank with strong mortgage rates. This establishes your market rate baseline. Apply for the same loan type (conventional/FHA/VA) and loan amount you expect to need. Get a formal Loan Estimate.

Why first? Because you need this baseline before you can evaluate the builder's offer. If you go to the builder first, your frame of reference is whatever number they show you — you have nothing to compare it to.

Step 2: Get Pre-Approved by the Builder's Lender

Most builders require a pre-approval from their preferred lender to write a purchase agreement. Do this — but do it AFTER you have your independent Loan Estimate in hand. When you apply with the builder's lender, request a Loan Estimate on the same loan terms (same loan type, same loan amount, same assumed purchase price). You now have two standardized documents to compare.

Step 3: Compare Loan Estimates Side by Side

The Loan Estimate (LE) is a federally mandated, standardized 3-page document. Place both LEs side by side and compare:

• Interest rate: What is the actual note rate (not the APR, not the teaser rate)?
• APR: Includes all fees — a more complete cost comparison than rate alone
• Origination fees: Points, origination charges, processing fees
• Third-party fees: Title insurance, settlement, appraisal (builder may require their affiliated title company)
• Estimated monthly payment: Principal + interest only; separately add taxes and insurance for full picture
• Cash to close: Total out-of-pocket — includes down payment, closing costs, and any credits

Step 4: Calculate All-In True Cost

The comparison is not just rate vs. rate. You need to calculate:

• Base purchase price (is the builder incentive home priced at market?)
• Total closing costs (after credits)
• Monthly payment difference over your expected hold period
• Total interest cost over hold period
• Break-even: how many months of payment savings offset any price premium?

Step 5: Use Your Better Deal as Leverage

Armed with two Loan Estimates and a true all-in cost comparison, you can negotiate. If the independent lender wins on total cost, ask the builder's lender if they can match the independent lender's rate or terms. Some will — especially if you're in a phase with strong builder sales incentives. If the builder's package wins, understand exactly what makes it win and take it confidently.

Rate Buydown Comparison: The Math Every Arizona Buyer Needs

Assumes $600,000 loan amount. Monthly payments are approximate P+I only. Total interest shown for 5-year period. Actual numbers vary by rate environment. Not financial advice — consult your lender and tax advisor.

Builder Lender vs. Independent Lender: Which Wins by Buyer Profile

Your RESPA Rights: What the Builder Cannot Do

The Real Estate Settlement Procedures Act (RESPA) is a federal consumer protection law administered by the Consumer Financial Protection Bureau (CFPB). RESPA includes specific provisions that protect homebuyers from being coerced into using a builder's affiliated settlement service providers. Here's what builders CAN and CANNOT do under RESPA:

What Builders CAN Do (Legally)

• Offer financial incentives (closing cost credits, rate buydowns, design studio credits) tied to using their preferred lender
• Offer additional incentives for using their affiliated title company
• Offer better lot selection or priority choice to buyers who use their lender (some builders use this tactic)
• Provide marketing materials for their affiliated lender

What Builders CANNOT Do (RESPA Violations)

• Require use of their preferred lender as a condition of sale
• Deny a purchase contract to a buyer who chooses an independent lender
• Provide kickbacks or undisclosed referral fees between affiliated entities
• Charge excessive fees for affiliated services that are not disclosed

RESPA Section 8(c)(2) specifically allows builders to offer incentives tied to affiliated service providers, AS LONG AS the buyer is not required to use those services and the arrangement is disclosed. The disclosure requirement is key — ask the builder's lender to provide their Section 8 Affiliated Business Arrangement (AfBA) disclosure, which lists all affiliated entities and the nature of their relationships.

The 15 Questions to Ask Before Using a Builder's Preferred Lender

• 1. Is this rate permanent or a temporary buydown? Good: "It's a permanent rate reduction for the life of your loan." Red Flag: "It's a 2/1 buydown — you'll have a great rate for the first two years."
• 2. What is the note rate on my loan? (Not the APR, not the buydown rate — the note rate) Good: A clear, unambiguous answer. The note rate is what you pay from Year 3 forward on a 2/1 buydown; it's what you pay permanently on a fixed-rate loan. Red Flag: Confusion or evasion about "which rate" you're asking about.
• 3. What are your origination fees, points, and all lender fees (Section A of the Loan Estimate)? Good: Clear itemization. Low to zero origination fees for a market-rate loan. Red Flag: "Oh, we wrap all that in" or refusal to provide itemized costs before you apply.
• 4. Are you requiring me to use your affiliated title company to receive the incentive? Good: "No, you can choose any title company." Or: "We offer an additional $X if you use our title — but it's optional." Red Flag: The incentive is ONLY available if you use both their lender AND their title company with no alternative.
• 5. If I choose not to use your lender, can I still purchase the home at the same price? Good: "Yes, absolutely — you'll just forego the closing cost credit." Red Flag: "You can use any lender but our contracts require preferred lender for priority lot access" (this is a coercive structure).
• 6. What are your closing cost credits contingent on? (Lender only? Lender + title? Lender + title + home warranty?) Good: Lender-only requirement, or lender + title with clear disclosure of the affiliated relationship. Red Flag: Credits contingent on using four or five affiliated services — maximizing cross-sell revenue while appearing to offer one incentive.
• 7. Can I see the Section 8 Affiliated Business Arrangement disclosure listing all your affiliated entities? Good: Immediate provision of the AfBA disclosure as required by RESPA. Red Flag: "We don't have one" or "I'll send it later" — this is a federal disclosure requirement.
• 8. What happens to my buydown reserve if I refinance in Year 2? Good: Clear explanation of what happens to unspent buydown funds at refinance. Red Flag: "We'll work that out when you refinance" — meaning the answer isn't favorable and they're deferring it.
• 9. What loan types are eligible for your incentives? (Conventional / FHA / VA / USDA) Good: Incentives available across all eligible loan types. Red Flag: "The incentive only applies to conventional loans" — if you're VA-eligible, this may not serve you.
• 10. What is your lender's recent customer review rating? Can you provide references? Good: Strong customer reviews; willingness to provide references. Red Flag: Deflection; poor reviews online (check Trustpilot, Google, BBB for the specific lender entity).
• 11. Will you provide a Loan Estimate within 3 business days of my application? Good: "Yes — that's required by federal law." (It is.) Red Flag: Any suggestion that the LE is not immediately available or that there's a reason to delay it.
• 12. What are your interest rate lock options? How long can I lock, and what does extending a lock cost? Good: 60–90 day locks at no charge; clear extension fee policy for new construction timelines. Red Flag: Only 30-day locks available for a 12-month build — you'll face multiple lock extensions at significant cost.
• 13. If my loan doesn't close on the builder's schedule, what happens? Good: Clear cure period; builder is flexible on 1–2 day delays due to lender issues. Red Flag: "We require closing on the exact contracted date or you lose your earnest money" with no flexibility for their own affiliated lender's delays.
• 14. What is your credit score minimum for the advertised rate? Good: Clear credit tier disclosure — "This rate is for 740+ credit score; at 700–739 the rate is X." Red Flag: Rate quoted without credit score qualification; rate changes significantly when your actual score is input.
• 15. Are there any prepayment penalties on this loan? Good: "No — there are no prepayment penalties. You can pay off or refinance at any time." (This is the correct answer for virtually all residential mortgages originated today.) Red Flag: Any mention of prepayment penalties. While rare in standard residential lending, always verify.

Arizona-Specific Financing Considerations

Arizona's 2026 Conforming Loan Limit: $806,500

Maricopa County and Pinal County (which covers much of the Phoenix metro's expanding edge cities) have a 2026 conforming loan limit of $806,500. Loans at or below this limit qualify for conventional Fannie Mae/Freddie Mac programs — typically lower rates than jumbo loans. If your purchase price is in the $900K–$1M range with 10–20% down, your loan amount may fall right at or below the conforming limit — structure your down payment accordingly to avoid jumbo pricing if possible.

Down Payment Assistance: ADOH HOME Plus

Arizona Department of Housing (ADOH) offers the HOME Plus program, which provides a 3–5% forgivable grant toward down payment and closing costs. Eligibility: 640+ credit score, $122,100 income limit, primary residence, FHA/VA/Conventional/USDA eligible loans. This program can be used WITH a builder purchase — the builder may not market it because they prefer you use their affiliated down payment assistance programs (which may generate more revenue for them). Ask your independent lender about HOME Plus before assuming the builder's program is your only option.

Community Facilities District (CFD) and DTI

Many Arizona new construction communities have Community Facilities District assessments that appear on the property tax bill — not in HOA dues. When your lender calculates your debt-to-income ratio (DTI), they use a property tax estimate that may or may not include the CFD. Ensure your lender is using the full PITI (principal, interest, taxes, insurance) calculation that includes HOA fees AND the CFD equivalent monthly amount. A buyer who looks qualified at 43% DTI can become unqualified if a $1,800/year CFD ($150/month) wasn't included in the underwriting calculation.

Lock Strategy for New Construction

New construction builds in Arizona run 9–14 months. Most lenders offer rate locks for 30, 45, or 60 days — designed for resale transactions that close quickly. For new construction, you need a lock strategy. Options:

• Float down lock: Some lenders offer "float down" provisions — lock a rate now, but if rates drop before your closing, you get the benefit. Usually costs additional origination points.
• Extended lock: Builder lenders often offer extended 270–360 day locks specifically designed for new construction. These carry a premium (higher rate or upfront fee) but eliminate rate risk. Worth analyzing in a rising rate environment.
• Float until 30–60 days before close: If rates are stable or declining, float without a lock until you're close enough to close date for a standard lock. Higher risk in volatile rate environments.

Your builder's preferred lender typically has purpose-built new construction lock products that independent lenders may not offer. This is a genuine advantage of builder lenders worth asking about.

When the Builder Lender Wins: A Definitive List

1. Permanent buydown 0.75%+ below market: If the builder permanently buys the rate from 6.75% to 5.75% or lower, and you plan to hold the loan 5+ years, this is significant genuine value. Take it.
2. Closing cost credit exceeds $20K AND rate is within 0.25% of market: The cash value of closing cost credits is immediate and real. If the rate is essentially equivalent and you're getting $20K+ in credits, that's a strong builder package.
3. First-time buyer who needs cash for down payment: Closing cost credits free up cash that reduces out-of-pocket requirements. For buyers with exactly enough for down payment and no more, builder credits can be the difference between qualifying and not.
4. Extended lock products for volatile markets: If rates are rising and the builder's lender offers a 360-day lock at a reasonable cost, the certainty has real value.
5. Specific community knowledge: Builder lenders underwrite dozens of loans in the same community — they know the HOA, the CFD, the property taxes, and the appraisal comparables. This can accelerate underwriting and reduce friction.

When the Independent Lender Wins: A Definitive List

1. VA-eligible veterans: VA specialist lenders routinely beat builder lenders on VA loan terms, and VA-specific nuances (IRRRL refinance, service-connected disability fee waiver, multi-unit VA purchasing) are better handled by VA specialists.
2. Strong credit profile (760+) with 20%+ down: The best conventional pricing goes to the best profiles. Independent lenders (especially mortgage brokers who shop wholesale) can often beat builder rate sheets for premium borrowers.
3. Investor/non-owner occupied: DSCR loans, portfolio investment loans, and multi-unit investment financing is a specialty area where broker/lender expertise matters more than builder affiliation.
4. Jumbo financing ($806,500+): Portfolio jumbo programs at private banks often outperform builder lenders' jumbo offerings.
5. Existing bank/credit union relationships with rate discounts: If your primary bank offers 0.25% rate discounts for new mortgage customers or for maintaining significant deposits, this can outweigh builder incentives for the right profile.
6. Close date flexibility needed: If your timeline has flexibility and you may need to extend or modify your close date, independent lenders are not motivated by the builder's quarterly earnings schedule — they'll extend your lock or accommodate your needs without builder pressure.

Frequently Asked Questions — Builder Lender vs. Your Own Lender

Ryan Moxley • My Home Group • (480) 227-9143 • moxleysellsaz@gmail.com

Deep Dive: Major Arizona Builder Lenders — What Buyers Report

Each of the major Phoenix metro builders has an affiliated lender. Here is what buyers and agents consistently report about each builder lender's strengths and weaknesses, based on market experience.

DHI Mortgage (DR Horton)

DHI Mortgage is one of the largest mortgage originators in the country by volume — because DR Horton is the largest homebuilder by units. Volume brings operational efficiency and a wide product menu (conventional, FHA, VA, USDA, jumbo). DHI typically offers competitive rates within their incentive programs, and their new construction lock products are well-developed given the volume of transactions they process. Customer service quality varies by market and loan officer — as with any high-volume operation. DHI tends to be most competitive for first-time buyers using FHA or conventional programs with closing cost credits. Their VA program exists but specialized VA brokers often outperform DHI on veteran-specific nuances. Rate negotiation is limited — DHI's rates are typically tiered by credit score and largely non-negotiable, unlike an independent broker who shops multiple wholesale lenders.

Taylor Morrison Home Funding

Taylor Morrison Home Funding serves Taylor Morrison's Arizona communities (Scottsdale, Chandler, Paradise Valley adjacent communities). Taylor Morrison tends to build at higher price points than DR Horton, and their financing incentives reflect a more premium buyer profile — larger credits ($15,000–$30,000+) in some phases, buydown programs on specific communities. Taylor Morrison's lender is generally reported as responsive and community-knowledgeable. Their jumbo product (for communities where $806,500+ loans are common) is worth comparing to private bank alternatives for buyers in that tier.

Pulte Mortgage

Pulte Mortgage serves Pulte, Centex, and Del Webb communities in Arizona. Pulte's buyer mix spans a wide range — from entry-level Centex product through premium Pulte communities and Del Webb 55+ — and their mortgage menu covers this range. Del Webb buyers (55+) sometimes qualify for specific programs aligned with retirement income verification (asset depletion lending, Social Security income qualification) that Pulte Mortgage has experience with. Compare to independent lenders who specialize in 55+ buyer profiles for the most complete evaluation.

Shea Mortgage

Shea Mortgage services Shea Homes communities in Arizona (Morrison Ranch, Harvest, Trilogy Vistancia). As a private company's affiliated lender, Shea Mortgage benefits from the same culture of quality and customer focus that characterizes Shea Homes overall. Buyer reports suggest Shea Mortgage provides a more personalized service experience than higher-volume builder lenders. Their new construction lock products and design studio financing coordination are typically smooth. Rate competitiveness varies by market conditions and phase — always compare with an independent Loan Estimate.

Understanding Title Company Incentives: The Other Builder Preferred Service

Builder financing incentives frequently extend beyond just the mortgage — they often include tied incentives for using the builder's preferred title/escrow company. In Arizona, title insurance is required for every real estate transaction (lender's title policy mandatory; buyer's owner's policy highly recommended). Title companies also serve as the escrow/settlement agent for the transaction.

The Arizona Title Company Landscape

Arizona has numerous title insurance companies and escrow companies. Major ones include: Fidelity National Title, First American Title, Old Republic Title, Stewart Title, and many regional companies. Builders in Arizona typically have ownership interests in or revenue-sharing arrangements with specific title companies. The builder's preferred title company may or may not offer competitive pricing — title insurance rates in Arizona are regulated (filed with DIFI — Department of Insurance and Financial Institutions), so the base premium rate is set. The variation is in endorsement charges, escrow fees, and settlement service charges, which are not regulated and can vary significantly.

Title Insurance Fees in Arizona New Construction

For a $700,000 purchase in Arizona, estimate:

• Owner's title insurance policy: approximately $1,400–$1,900 (based on purchase price, rate filed with state)
• Lender's title insurance policy: approximately $700–$1,100 (based on loan amount)
• Escrow/settlement fee: approximately $600–$1,200
• Recording fees: $30–$80 (Maricopa County recorder)
• Total title/escrow costs: approximately $2,700–$4,300

If the builder is offering $15,000 in total credits contingent on using their title company AND their lender, calculate whether the title fee portion of that equation is competitive with independent title alternatives. In some cases the title fee at a builder's preferred company is comparable to or below market. In others it carries a premium that partially offsets the credit value.

Home Warranty: The Third Builder Affiliated Service

New construction builder warranties are separate from third-party home warranty programs (also called "home service contracts"). Builders' statutory warranties under ARS §12-1361 and their own contract warranties are builder-provided and do not cost the buyer separately. Some builders upsell extended home warranty programs through affiliated or third-party providers at closing — sometimes as part of an incentive package ("use our lender and get a 3-year extended home warranty included").

Are Extended Warranties Worth It in New Construction?

For a brand-new home, the first few years of ownership typically have very low repair costs — because everything is new and under builder warranty. An extended home warranty on a new construction home covers primarily what the builder warranty already covers for Year 1, and may cover systems at Years 2–5 when they're still relatively new. The value proposition is: for $500–$800/year, you have coverage against the rare-but-expensive system failure in Years 2–5. This may be appropriate for buyers who want maximum predictability in housing costs. It is generally NOT required for new construction the way it can be for older resale homes with aging systems.

Mortgage Broker vs. Direct Lender for New Construction — Which Is Better?

When evaluating "independent lenders" for comparison, you have two main categories: direct lenders (banks, credit unions) who originate and fund from their own balance sheet, and mortgage brokers who originate loans but fund through wholesale lender partners (banks, credit unions, and specialty lenders who lend through the broker channel).

Direct Lender Advantages

• Simplified process — one point of contact from application to close
• Portfolio lending: some direct lenders (especially banks) have unique loan products (physician loans, asset depletion loans, portfolio jumbo) not available through brokers
• Existing relationship rates: if you have significant deposits or investments with a bank, their mortgage rates for existing customers can be very competitive
• Long-term service: if the lender retains servicing, you deal with the same institution for the life of the loan

Mortgage Broker Advantages

• Market shopping: brokers access 10–20+ wholesale lenders per loan, choosing the best rate/program for your specific profile
• For non-standard profiles (self-employed, unusual income, high debt, unique property): brokers find specialized programs that direct lenders don't carry
• Transparent compensation: Borrower Paid Compensation disclosure shows exactly how much the broker is making
• Competition for your loan: multiple lenders competing for the same loan means you get better terms

The Right Answer for New Construction Buyers

For most new construction buyers in Arizona, a mortgage broker comparison is the most efficient way to establish your market rate baseline. A good mortgage broker will pull your credit once (soft pull to start, hard pull at application) and shop your scenario to their wholesale network, returning multiple Loan Estimates for comparison. This takes 24–48 hours. You then compare the best broker quote against the builder's lender offer using the standardized Loan Estimate format — and make your decision from a position of complete information.

The Timing Issue: When to Lock Your Rate for New Construction

Rate lock strategy is one of the most practically consequential decisions in new construction financing — and it's an area where builder lenders have genuine product advantages worth understanding.

The New Construction Rate Lock Problem

Standard mortgage rate locks cover 30–60 days. Standard new construction build times: 9–14 months. This mismatch creates a fundamental risk: if you get pre-approved in Month 1, rates could be meaningfully different (higher or lower) by the time you close in Month 12–14. You have several strategies:

Strategy A: Float the Rate Until 60 Days Before Close

Don't lock. Watch rates. Lock 60 days before your expected close date when you have high confidence in timing. Risk: if rates spike during your build, you're exposed. Benefit: if rates drop, you capture the improvement. This strategy was appropriate in the 2020–2021 declining rate environment. In today's (2026) environment, the right strategy depends on rate direction expectations — which no one can predict with certainty.

Strategy B: Long-Term Lock with Float-Down Option

Some lenders (and most builder lenders) offer lock periods up to 270–360 days specifically for new construction, sometimes with a "float down" provision — if rates drop by a defined amount (often 0.25–0.5%) before close, you automatically get the lower rate. This costs more upfront (typically 0.25–0.5% in origination fee, or a slightly higher rate) but eliminates rate uncertainty. If you're highly certain about your purchase and timeline, this certainty has real value — particularly if rates are volatile.

Strategy C: Lock Closer to Close and Use a Builder Lender's Rate Lock Extension

Builder lenders, who are processing hundreds of loans from the same community, often have efficient rate lock extension processes — they know when phases are running on schedule and can manage extension pricing across their book of business. An independent lender may be less accustomed to the new construction extension process. If rate uncertainty is moderate and you're comfortable with monthly extension costs, starting with a 60–90 day lock near the end of construction can be appropriate — and the builder lender's extension process may be smoother than a first-time-user independent lender's.

What Happens at Closing: Dry Closing in Arizona

Arizona is a "dry funding" state — meaning that on the day of closing, you sign documents, funds are transferred, the deed records with the county recorder, AND you receive keys — all on the same day. There is no "wet" funding gap where you sign today and the deed records in two days. This is actually buyer-friendly: you know the exact moment you are the legal owner of your new home, and you get keys the same day you close.

For new construction, this means the builder receives their funds, the title company disburses all parties, and you get your keys all in a coordinated sequence on closing day. Whether you use the builder's lender or an independent lender, the closing experience in Arizona is the same dry-funding process. Both lenders coordinate with the title/escrow company (whichever you select) for the same-day fund-and-record process.

The Bottom Line: A Simple Framework for Your Decision

After reading this guide, here is the simple framework to apply:

1. Ask the first question: "Is this rate permanent or a temporary buydown?" If temporary — calculate the step-up payments and make sure you can afford Year 3 at full market rate.
2. Get your independent Loan Estimate first. Before applying with the builder, establish your market baseline from a mortgage broker or credit union.
3. Apply with the builder's lender and get their Loan Estimate. Now you have two standardized documents to compare.
4. Calculate all-in cost — base price, closing costs, and interest paid over your expected hold period — for both options. The option with the lower all-in cost wins.
5. Factor in service quality. If the numbers are close ($2,000–$5,000 difference over 5 years), the lender with better reviews, clearer communication, and a smoother process may be worth the small cost difference.
6. Ask all 15 questions. Any evasion or red flag answers are signals worth heeding.
7. Make the decision from information, not from sales pressure. Builder sales agents are incentivized to push their preferred lender — that's their job. Your job is to evaluate objectively and choose what's best for your financial situation.