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Can You Buy Land and Build a Custom Home With One Loan?
Editorial review: My Construction Path team ·
Yes, in many cases. A combined land and construction loan pays for the lot at closing, funds the build in draws, and then becomes your mortgage. The catch is timing: the lender must approve the land, your builder and your plans before the lot closes. If the seller won't wait, you may need to buy the land first.
Last updated: November 2, 2026
How does a land and construction loan work?
One loan pays the seller for the lot, then pays the builder in stages. On a one-time close, it converts to a permanent mortgage when the home is finished.
Fannie Mae's Selling Guide calls this a purchase transaction. It applies when "the borrower is not the owner of the lot at the time of the first advance of interim construction financing, and the borrower is using the proceeds from the interim construction financing to purchase the lot and finance the construction of the property."
FHA allows the same approach. HUD's Mortgagee Letter 2019-08 says, "The Borrower must either be purchasing the land at the closing of the construction loan, or already own the land." USDA's single-close program also lists "purchasing a lot" among the eligible uses of loan funds (USDA fact sheet).
For the bigger picture, see our guide on how to finance a custom home.
How is this different from other ways to pay for land?
It is one of three common paths. The right one depends on whether you own the lot yet and how ready your build is.
| Path | Who it fits | Main trade-off |
|---|---|---|
| Land and construction in one loan | You found a lot and have a builder and plans ready | The lot closing has to wait for full construction approval |
| Buy land first, then use its equity | You want the lot now and will build later | Two transactions, but the land may count toward your contribution |
| Separate land loan, then a construction loan | The lot must close fast and you need to borrow for it | More closings and more paperwork |
If you already own your lot, you don't need this kind of loan. See how land equity works on a construction loan or building on land you own free and clear. If you still owe on it, read building on land you're still paying off.
Can you finance land you haven't bought yet?
You can, but the lot has to pass the same review as the house plans. These are the steps that matter most.
1. Write the purchase contract with the build in mind. Ask for a financing contingency tied to the construction loan, not just a land loan. Also ask for enough time for a survey, soil or perc tests, and utility checks. Give the lender a copy as soon as it is signed.
2. Expect a lot appraisal as part of the as-completed appraisal. The appraiser values the finished home on that specific land, using your plans. Road access, utilities, slope and flood zone all affect that value. See how a construction loan appraisal works.
3. Line up the lot closing and the construction closing. In the simplest case, they happen on the same day. The lender pays the seller from the loan, and the first draws follow once permits are in hand.
4. Have a backup if the seller won't wait. Builder approval, plans, permits and the appraisal take time. If the land contract ends first, you may need to buy the lot with cash or a separate land loan. Then you build later using the lot's value as equity.
HUD's rules also show why the lot's history matters. The lender "must obtain the Closing Disclosure or similar legal document showing the cost of the land and the date of purchase" (HUD Mortgagee Letter 2019-08). How long you have owned land can change how a program values it.
How much do you need to buy land and build?
That depends on the program, the lot price and the total build cost. When you don't own the lot yet, you have no land equity to count, so more of your contribution usually comes from cash, gifts or other assets.
Our construction loan calculator shows a rough range for both cases, including the cash you may need when the lot isn't owned. For what the contribution covers and which programs offer a low down payment option for eligible borrowers, see how much you need down to build a custom home.
What land can be hard to finance with the build?
Some lots need extra review before a lender will close on them. Expect more questions if:
- The lot has no recorded road access, or relies on a shared private road.
- There is no public water or sewer, so a well and septic system are needed.
- Part of the land is in a flood zone.
- The parcel is large, rural or has farm uses.
Wells and septic systems are common on custom builds. As of the Census Bureau's 2025 annual data, published July 1, 2026, about half of contractor-built homes had an individual septic system, compared with about 1 in 11 homes built for sale (Census sewage system table).
For those cases, see building a custom home on rural land or acreage. If the land was a gift or you inherited it, read building on inherited land.
What should you ask lenders before you sign a land contract?
Ask before your contingency period starts:
- Do you finance the lot purchase in the same loan as the build?
- What do you need from me, the builder and the seller, and how long does approval take?
- Can the lot close on the same day as the construction loan?
- How do you treat well, septic and access on this parcel?
The CFPB suggests you "[r]equest multiple Loan Estimates from different lenders so you can compare and choose the loan that's right for you" (CFPB, Loan Estimate). Our guide on how to choose a construction lender covers what else to compare.
Frequently asked questions
Can I buy land and build a house with one mortgage?
Often, yes. Many one-time close programs pay for the lot at closing and fund the build from the same loan, then convert to a permanent mortgage when the home is done.
Can I finance land that I haven't purchased yet?
Yes, if the lot is under contract and the lender approves it along with your builder and plans. The lot purchase then closes with the construction loan or just before it.
Is one loan better than buying the land first?
Not always. One loan means one approval, but you need plans and a builder ready. Buying the land first gives you time, and its value may later count toward your contribution.
What if the land closing can't wait for the construction loan?
You may need to buy the lot first with cash or a separate land loan, then use the lot as equity when you apply to build.
Sources
- Fannie Mae Selling Guide B5-3.1-02, single-closing transactions
- HUD Mortgagee Letter 2019-08, Construction to Permanent
- USDA Rural Development, Single Close Construction-to-Permanent fact sheet
- CFPB, Loan Estimate explainer
Found land you want to build on?
Tell us about the lot, your builder and your timeline, and we'll connect you with lenders who finance land and construction together. Get connected at My Construction Path.
My Construction Path is not a lender and does not make loans or credit decisions. Not all borrowers will qualify. Equal Housing Opportunity. Requirements vary by lender, loan program, and location. This article is for general education and is not a commitment to lend. It is not a quote of rates, payments, or loan terms.