The Quick Read: Buying from a builder is usually a standard jumbo purchase. You sign a contract, the builder finishes the house, and one jumbo mortgage pays for it at closing. Building on your own lot is different, because it needs construction financing with draws during the build. Pick the path first, because it decides almost everything that follows.
Key Takeaways
- A jumbo loan starts one dollar above your county’s conforming limit, so the same price can be jumbo in one county and not in another.
- Builder-sold homes (spec or to-be-built) normally use one purchase loan. Custom builds on your own land use construction-to-permanent financing.
- Across the wholesale lanes Lendmire works with, the headline jumbo program starts at a 660 decision score, reaches 90% leverage and goes up to $5,000,000. Everything is subject to lender guidelines and full file review.
- The appraisal on a home that isn’t finished is written “subject to” completion. A completion check follows before you close.
- The main risks are a low appraisal, a slipping completion date and thin reserves. Each can be planned for.
What Counts as “New Construction”?
The phrase covers three different deals, and lenders treat them differently. Most borrowers searching this topic are in the first two rows.
Jumbo payment estimate
The starting figures are an example price in the jumbo range with ten percent down on a thirty-year fixed. Replace them with yours.
Editable benchmark: 7.40% as of October 15, 2026 · Freddie Mac 30-year average via FRED®. A conventional market reference, not a jumbo loan quote.
Illustrative starting assumptions: a $1,000,000 price in the jumbo range, ten percent down on the top-leverage lane, a thirty-year fixed structure at the current Freddie Mac conforming benchmark, and property taxes and insurance estimated at typical national rates. Every field is editable.
Illustrative estimate only — not a Loan Estimate, approval, quote, or commitment to lend. The rate field carries the weekly Freddie Mac thirty-year conforming benchmark, a market reference and not a jumbo loan quote; jumbo rates are set by the lender and the lane at lock and differ from the conforming benchmark. An adjustable-rate scenario is shown at the benchmark for the whole term; the rate after the initial period is unknown. Reserve months and appraisal counts follow the lane sheet for the amount band; the automated finding may require more. Taxes, insurance and dues are editable estimates; closing costs are not included. On most lanes the conforming limit for the county decides whether a loan is jumbo at all; two lanes start at a stated dollar floor instead. Licensed in sixteen states for consumer mortgages.
| Scenario | Who owns the land | Typical loan | Closings |
|---|---|---|---|
| Spec or quick-move-in home | Builder | Standard jumbo purchase | One |
| To-be-built in a community | Builder until you close | Standard jumbo purchase | One |
| Custom build on your lot | You | Construction-to-permanent | One or two |
On a spec home the house is already framed or finished. You are buying a nearly complete product, and the lender sees a purchase with a new-build appraisal.
A to-be-built home in a community is the same loan with a longer wait. You sign now, pick finishes, and close when the builder delivers. The loan is a purchase loan, but time stretches between contract and closing. That gap creates most of the risk covered below.
A custom build is a true construction deal. You own the land, a contractor builds, and the lender releases money in stages. Hold that thought until the section on building on your own lot.
How Does a Jumbo Loan Work on a Builder-Sold Home?
It works like any jumbo purchase, with extra attention to the property. A jumbo loan is a mortgage above the conforming limit set for your county. Those loans can’t be bought by Fannie Mae or Freddie Mac, so each lender sets its own rules. Jumbo is not one national number, and it is not one national rulebook.
That is why the program you pick matters. Lendmire arranges jumbo loan programs through wholesale lenders as a mortgage broker. Lendmire does not lend the money itself. In the lanes it places files with, you can choose fixed, adjustable or interest-only structures. Each has its own ratio ceiling: 50% on the fixed lanes, 45% on the adjustable and 43% on the interest-only.
The builder is not your lender, even if the builder has a preferred one. You can compare. More on that later.
Step by Step: From Pre-Approval to Keys
Here is the sequence on a builder-sold home. Each step lists who does what.
1. Check your county’s limit, then get pre-approved before touring models. You learn whether you need jumbo at all. The lender reviews credit, income, assets and reserves. You collect documents. The builder does nothing yet.
2. Pick the home and sign the sales contract. You pay a deposit. The builder’s contract often has its own deadlines and its own financing terms. Read the financing section carefully.
3. Apply with the loan you chose. The lender builds the file. You send paystubs, traditional personal-income documentation or other income documents, and asset statements. The lender reviews the contract and the builder’s specifications.
4. Appraisal. For a home that isn’t finished, the appraiser works from plans, specifications or a similar model home. The value is “subject to” completion.
5. Construction continues. You monitor the build. You stay in touch with the lender about your lock period and any schedule change.
6. Completion check. A completion report, often a Form 1004D, confirms the home is built as the appraisal assumed. The lender may also want a certificate of occupancy and a final inspection.
7. Final walkthrough and closing. You review your Loan Estimate and Closing Disclosure, the two standard forms that show your loan terms and closing costs. You sign, fund and get keys.
The lender re-checks your credit and assets near closing. Don’t open new credit lines, move large sums or change jobs during the wait.
What the Lender Looks For
Here is what Lendmire sees across the jumbo lanes it works with. These are program guidelines, not promises, and each lender reviews the full file.
Credit. The headline lane starts at a 660 decision score. Other lanes may ask for more. A higher score can help the file.
Leverage. The headline lane goes up to 90%. Several lanes reach 89.99% combined loan-to-value (CLTV), which counts all loans against the home’s value. The rest stop at 80%. Fixed, adjustable and interest-only lanes differ, so ask which lane a quote reflects.
Loan amount. The largest lanes go to $5,000,000. If your loan lands in that range, Lendmire’s piece on super jumbo requirements for new construction goes deeper.
Debt-to-income ratio. That is your monthly debts divided by your monthly income. The ceiling is 50% on the fixed lanes, 45% on the adjustable and 43% on the interest-only.
Reserves. Reserves are cash you keep after closing, counted in months of your full housing payment. They rise with the loan amount. Larger loans ask for more months.
Appraisals. Above a lane’s threshold amount, two appraisals are required. On a new build that can matter, since each appraiser looks at comparable sales.
Occupancy. This article assumes you will live in the home. Second homes and investment properties are reviewed at lane-specific leverage, so occupancy changes the numbers.
Jumbo loans do not follow Fannie Mae’s rulebook. People often assume they do. They don’t. Fannie Mae’s guide is a useful benchmark for how completion is documented, but a jumbo lender sets its own overlays.
Appraisal, Lock and Delay Risk
This is where most new-build jumbo deals get tested. Three things can go wrong, and each is manageable if you see it coming.
A low appraisal. The appraiser compares the home’s value to the contract price. Builders price with options, upgrades and lot premiums built in, and comparable sales may not reflect those. If the value comes in below the price, the lender lends against the lower number. You then cover the gap, renegotiate with the builder or reconsider. Leverage is the lever here: at 90% leverage, a small shortfall becomes your cash. Keep a cash cushion beyond the minimum. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.
A slipping completion date. Builders miss dates for weather, permits and supply reasons. Your lender’s documents have dates too. If your lock or your approval expires before the house is done, you may need an extension or a refresh. Ask the broker how an extension works before you sign the contract. Ask the builder what happens if the date moves. Get both answers in writing.
Rate exposure on a long wait. On a builder-sold home, a lock fixes your loan terms for a set window. A long build can outlast that window. On a single-close construction loan, the permanent terms are often fixed at the first closing. On a two-close structure, you are exposed to changes between closings. Either way, match the lock period to the realistic completion window, not the builder’s best-case date.
Then comes the completion step. A 1004D report confirms the home is built as the appraisal assumed. Fannie Mae’s Selling Guide describes this process and allows an attestation letter from the borrower or builder in some cases. It is a conforming-loan benchmark. A jumbo lender may ask for more, such as a certificate of occupancy or an updated appraisal.
When You Build on Your Own Lot
Now the other path. If you own land and hire a builder, you use construction financing. Two structures are common.
| Structure | How it works | Main tradeoff |
|---|---|---|
| One-time close (single close) | Close once before building; loan converts to permanent | One set of closing steps; fewer lenders offer it |
| Two-time close | Short-term construction loan, then a separate mortgage | Two closings; exposed to changes between them |
During the build, money goes out in draws tied to verified milestones. You usually pay interest only on what has been drawn. The lender inspects the work before each release. It typically reviews the plans, the budget, the contract and the builder.
One rule is worth knowing. Federal ability-to-repay rules require a lender to make a good-faith, documented judgment that you can repay. The CFPB’s compliance guide says the construction phase of a construction-to-permanent loan is exempt when it runs 12 months or less. The Federal Register notice for the final rule added that exemption. The exemption covers only the construction phase. The permanent loan is not exempt, and the lender still verifies your income and assets.
Fannie Mae’s single-close rules, a benchmark for conforming loans, use a similar frame: no single construction period over 12 months and a total no longer than 18. A jumbo portfolio lender may set different limits. Ask yours.
Many borrowers assume that a construction loan skips underwriting. It doesn’t. Some lenders also re-verify your income and credit before the loan converts, though that varies by program. Confirm it before you commit.
Builder Incentives, Deposits and Upgrades
Builders often offer a credit if you use their preferred lender. That can be worth taking, or not. The test is simple: compare the full terms on each Loan Estimate, not just the incentive. A credit that comes with weaker loan terms can cost more than it saves. Request a Loan Estimate from the preferred lender and from at least one other source, and compare line by line.
Deposits are the second issue. Your earnest money sits with the builder under the contract. Read when it becomes non-refundable. It can count toward closing funds, but your lender will want to document where it came from.
Upgrades are the third. Design-center options can add a lot to the contract. They may or may not raise the appraised value. Lenders appraise the finished house, so a pricey finish that comparable homes don’t show may not be recognized. Plan to pay for some upgrades out of pocket, and confirm with the lender how they are treated before you add them.
(Design centers are built to make yeses easy. Your budget has to say no.)
Where the General Rule Breaks
The simple version, “builder-sold equals standard jumbo,” has exceptions.
You’re near the county limit. You could be a jumbo borrower in one county and a conforming borrower in the next. The Federal Housing Finance Agency sets the limits every year and publishes them in its conforming loan limit announcement. The agency does not reduce the limit when prices fall. Use its county data page to look yours up, since the figure changes by year and by number of units.
The home is a condo. Non-warrantable condominiums, those that don’t meet standard project rules, are accepted on two of the lanes. New condo projects often have this issue early in sales.
The build runs long. If construction goes past the construction-period limit a lender uses, you may need an extension or a new structure. That is a lender-by-lender question.
The home isn’t your primary residence. Second-home and investment occupancy are reviewed at their own leverage. Occupancy decides the leverage, so tell your broker up front.
You need cash out later. Cash-out refinancing carries lower leverage than a purchase, and the largest lanes have a cash cap. A new build is not a loophole around that.
You are self-employed or have irregular income. Document the file differently. Lendmire’s piece How to Buy New Construction With a Super Jumbo Bank Statement Loan shows how larger files are structured.
A Walk-Through Scenario
Run it with percentages, since the exact dollars depend on your county and builder. Say you contract for a to-be-built home in a community, with a price well above your county’s conforming limit. You choose 80% leverage to keep a cushion, rather than the 90% top end. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.
Your pre-approval says your debt-to-income ratio sits comfortably below the 50% ceiling of a fixed lane, and your reserves meet the lane’s months requirement. You sign the contract. The appraisal is “subject to” completion, and it comes in at the contract price.
Three months into the build, the builder warns of a delay. Because you asked up front, you know how your lender handles lock extensions. You extend instead of scrambling. At completion, the 1004D confirms the finished home, the certificate of occupancy arrives, and you sign.
Now the other branch. The appraisal comes in below the contract price. Your 80% applies to the lower value, so your cash needs rise. You can negotiate with the builder, bring more cash or walk away if the contract allows. Because you held reserves above the minimum, you have options.
Common Mistakes
- Skipping pre-approval before touring. You fall for a house outside your file.
- Assuming the builder’s lender is the only choice. It isn’t. Compare Loan Estimates.
- Locking to the builder’s best-case date. Build in slack.
- Forgetting that upgrades may not appraise. Budget cash for them.
- Draining reserves for the deposit and upgrades. The lender still wants reserves at closing.
- Changing jobs or opening credit mid-build. The lender re-checks before funding.
- Ignoring the county limit. It decides whether jumbo rules apply.
Key Terms Defined
Jumbo loan: A mortgage larger than the conforming limit for the county where the home sits. Fannie Mae and Freddie Mac cannot buy it.
Construction-to-permanent loan: A loan that finances the build and then converts to a standard mortgage when the home is done.
Draw: A staged release of construction money, tied to verified progress on the build.
Form 1004D: The completion report that confirms a home was finished as the appraisal assumed.
Reserves: Cash and liquid assets you hold after closing, counted in months of your full housing payment.
CLTV: Combined loan-to-value. It adds all loans against the home and divides by its value.
Spec home: A home a builder starts or finishes without a buyer in place.
Your Next Step
If you are buying a home and want to see whether a jumbo loan fits your file, Lendmire can help you compare the options and what each one asks of the file. Bring your contract timeline and ask about lock extensions before you sign. Program figures are subject to lender guidelines and full file review, and nothing here is a commitment to lend.
Frequently Asked Questions
Do I need a construction loan to buy from a builder?
Usually not. Buying a spec or to-be-built home from a builder normally uses one purchase mortgage that closes when the home is finished. A construction loan with draws applies when you own the land and hire someone to build. Confirm which structure your contract assumes.
Does a jumbo loan require mortgage insurance?
Jumbo lenders generally manage risk through your down payment, credit and reserves rather than a standard insurance requirement. Terms vary by lender and lane, so check the Loan Estimate for any insurance line. Leverage up to 90% on the headline lane means the file is reviewed closely.
What happens if the appraisal comes in low on a new build?
The lender uses the lower value, so you cover the gap with cash, negotiate with the builder or reconsider. This is common when the price includes upgrades and lot premiums. Holding extra cash beyond the minimum reserves gives you room to respond.
Can I use the builder’s preferred lender and still get jumbo financing?
Yes, if that lender offers jumbo. You are not required to use it. Compare the full Loan Estimate from the preferred lender against another source, looking at terms and costs together rather than only the builder’s incentive.
Does the home have to be my primary residence?
No, but occupancy changes the numbers. Primary residence, second home and investment occupancy are each reviewed at lane-specific leverage. Tell your broker how you plan to use the home before you pick a program.
For your own numbers, request a scenario review with Lendmire.
About Lendmire
Lendmire — NMLS# 2371349 — is a mortgage broker that arranges FHA, VA, conventional and jumbo home purchase and refinance financing in 16 states through wholesale lenders. Every option is subject to the lender’s guidelines and full underwriting. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Fannie Mae Selling Guide – Verifying completion and postponed improvements
2. CFPB – ATR/QM Small Entity Compliance Guide
3. Federal Register – Ability-to-Repay final rule
4. FHFA – 2026 conforming loan limit announcement
5. FHFA – Conforming loan limit data page
This article is part of Lendmire’s jumbo loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How Many Months of Reserves Does a Jumbo Loan Require? · Can You Get a Jumbo Cash-Out on a Rural Home With Acreage? · Jumbo Cash-Out Seasoning Rules for a Second Home
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
Required disclosures. Lendmire (NMLS# 2371349) operates as a licensed mortgage broker, not a direct lender or depository. The discussion in this article is general in nature and should not be relied upon as financial, legal, or tax advice — every investment scenario is unique and should be reviewed by a qualified professional. Any loan inquiry is subject to lender underwriting, and this article is not a commitment to lend or a guarantee of approval. Mortgage rates, loan terms, and program guidelines vary by borrower, property, and state, and may change without notice. Equal Housing Opportunity. Verify licensure at NMLS Consumer Access.