On a new build, your down payment is the same concept as on any home — the part of the price you pay rather than finance — but the cash flows differently: you typically hand over builder deposits months before closing, and those deposits are usually credited toward what you owe at the closing table. Understanding what you pay, when, and what counts toward the down payment is the difference between a smooth closing and a scramble.
Builder deposits vs. down payment: not the same thing
The builder deposit is money you give the builder when you sign the contract — their protection against you walking away mid-build. Your down payment is a loan concept: the gap between the purchase price and the mortgage amount, settled at closing.
In most builder contracts, deposits you have already paid are credited against your total cash due at closing, effectively counting toward your down payment. But "most" is not "all," and upgrade deposits are sometimes treated differently from the base deposit. Get the credit treatment in writing before you sign — it is a contract term, not a custom.
Design-center and option deposits
Structural options and design-center upgrades usually require their own deposits, often larger for choices the builder cannot resell easily. Two cautions:
- Upgrade deposits are frequently non-refundable even when the base deposit has protections — they cover work the builder performs for your specific choices.
- Upgrades may not appraise for what they cost, which affects the value side of your loan math. See how new construction appraisals treat upgrades.
Where the money can come from
Down payment sourcing rules on a new build are the same as any mortgage — with documentation habits that matter more because the timeline is long:
- Savings: keep deposits traceable. Move money between accounts as little as possible during the build, because underwriting will re-verify assets near closing.
- Gift funds: allowed under the major loan programs with proper gift documentation. If family is helping, involve your loan officer before the money moves.
- Sale of your current home: common, and workable — but tell your lender up front so the approval is structured around the sale timing.
- Land equity: on custom builds, equity in a lot you already own can often serve as some or all of the down payment on a construction-to-permanent loan.
How much down payment do you need?
Minimum down payment requirements are set by loan program — conventional, FHA, VA, and USDA each have their own rules, and VA and USDA include options with no down payment requirement for eligible borrowers and properties. Custom construction loans typically ask more of the borrower than a standard purchase, because the lender is funding a build rather than buying into a finished asset.
Rather than anchoring on a number you read online, have a lender run your actual scenario: program eligibility, property type, and build structure change the answer. The differences between new-build and resale financing start exactly here.
The cash-flow timeline of a new build
Map your cash against the build calendar, because it leaves your account in waves:
- At contract: builder deposit.
- At design/options selection: upgrade deposits.
- During construction (custom builds): interest payments that grow as draws are released.
- Near closing: appraisal, inspections, and standard prepaid items.
- At closing: remaining down payment and closing costs, minus credited deposits and any builder incentives.
Protecting your deposit
Builder deposits are governed by the purchase contract, and refund terms vary widely — financing contingencies, appraisal contingencies, and builder-delay clauses all affect whether you can get the money back if the deal dies. Before signing, know exactly which events entitle you to a refund, and confirm whether deposits are held in escrow or used by the builder during construction. A real estate attorney's review of a builder contract is cheap insurance on a deposit this large.
Frequently Asked Questions
Does my builder deposit count toward the down payment?
Usually yes — deposits already paid are typically credited against your cash due at closing. But the treatment is set by your purchase contract, and upgrade deposits are sometimes handled differently than the base deposit. Confirm in writing before signing.
Can I use gift money for a new construction down payment?
Yes, under the same gift rules as any mortgage: documented source, a signed gift letter, and a clear paper trail. Because new-build timelines are long and assets get re-verified, coordinate the transfer timing with your loan officer.
Can land I own count as my down payment on a custom build?
Often, yes. On a construction-to-permanent loan, equity in a lot you already own can typically be applied toward the down payment requirement, with the appraisal valuing the completed home and land together.
Are builder deposits refundable if my financing falls through?
Only if your contract says so. Financing and appraisal contingencies determine refund rights, and builder contracts are not standardized. Read the contingency language carefully — and consider an attorney review — before you hand over the deposit.
Planning a new construction purchase?
The Cook Brothers Mortgage Team finances new builds every day — for buyers and for builders. Get straight answers on your scenario.
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