How to Finance a Custom Home Build in California: Construction Loans Explained

Building a custom home isn't financed like buying one. There's no finished house to hand the bank as collateral yet — just a lot, a set of plans, and a builder. So instead of a standard mortgage, you use a construction loan: a short-term loan that releases money in stages as your home goes up, then either pays off or converts into a permanent mortgage when the house is done.

It's the part of the process that intimidates most first-time custom-home clients in Tulare County. After 25+ years building homes in the Central Valley, I've watched the financing — not the framing — be the thing that stalls projects. This guide explains how construction loans actually work in California in 2026, what they cost, what it takes to qualify, and how to line one up before you ever break ground.

Why you can't just use a regular mortgage

A traditional mortgage funds a home that already exists. The lender appraises a finished property, hands over the full amount at closing, and takes the house as security. None of that works for a build. On day one there's nothing standing, so the bank can't lend against a finished value or release all the cash up front.

A construction loan solves this by doing three things differently: it lends against the projected finished value based on your plans and builder's contract, it releases funds in draws tied to construction milestones, and it charges interest-only on the money you've actually drawn during the build. You're only paying interest on what's been spent so far — not the whole loan.

The two loan structures you'll choose between

Almost every custom-home borrower in California picks one of two paths:

1. Construction-to-permanent ("one-time close")

This is the one I steer most clients toward. It's a single loan with a single closing that covers both the build and your long-term mortgage. You lock your terms before construction starts, pay interest-only on drawn funds through the 12–18 month build, and then the loan automatically converts to a permanent mortgage when the home is finished — no second application, no second set of closing costs, no re-qualifying.

The big advantage is certainty: you close once, you pay closing costs once, and you're not exposed to whatever rates do while your house is being built. The tradeoff is that you commit to the permanent terms early.

2. Stand-alone construction loan (two-close)

Here the construction loan and the permanent mortgage are two separate loans. You take a short-term construction loan (usually about 12 months), and when the house is done you refinance into a regular mortgage. That means qualifying twice, closing twice, and paying closing costs twice — plus you're betting that rates and your finances still look good at the finish line.

It can make sense if you expect rates to fall, if you're planning to shop the permanent loan aggressively, or if you already have a lender relationship for the takeout financing. For most people building one home to live in, the one-time close is simpler and cheaper.

What construction loans cost in 2026

Construction financing carries a bit more risk for the lender than a standard mortgage, and the pricing reflects it. Here's what borrowers are seeing across California this year:

Those are general ranges, not a quote — your actual rate depends on credit, down payment, reserves, and the lender. Rates move, so confirm current numbers with a loan officer before you build a budget around them. A few things worth knowing:

• The down payment is calculated on total project cost — land plus construction — not just the build. If you already own your lot free and clear, its equity can often count toward your down payment, which is a big help.
• Interest-only during the build keeps your carrying cost low early on and rises as more of the loan is drawn. Budget for these payments on top of any rent or existing mortgage while you build.
• You'll pay for an appraisal based on plans and specs, plus inspections at each draw. Build a little cushion for these soft costs.

How draws work — and why your builder matters here

The money doesn't land in your account all at once. The lender releases it in a series of draws as construction hits pre-agreed milestones — for example: foundation poured, framing complete, roof and rough-ins done, drywall, and final completion. Before each draw, the lender usually sends an inspector to confirm that phase is actually finished before releasing the next round of funds.

This structure protects you: money is tied to completed work, so a builder can't collect for a phase they haven't done. But it also means your builder has to manage cash flow through the gaps between draws and keep the project moving on a schedule the inspections can keep up with. A disorganized builder who misses milestones can choke the whole loan. This is one more reason to vet your general contractor carefully before you sign — a licensed builder with a track record of clean draw schedules makes the financing side far smoother.

What it takes to qualify in California

Construction lenders underwrite you and the project. Expect them to look at:

• Credit score. Most lenders want 680 or higher; the best rates go to 720+. Some government-backed programs (like FHA construction loans) can go lower, into the low 600s, with tradeoffs.
• Down payment & reserves. Plan on 20–25% down and cash reserves on top — lenders want to see you can weather overruns.
• A licensed contractor. Lenders almost always require a licensed, insured general contractor with a signed fixed-price or cost-plus contract. In California, any residential job over $500 in labor and materials legally requires a licensed contractor anyway.
• Complete plans and a detailed budget. Architectural plans, a line-item cost breakdown, specs, and a construction timeline. The more complete your package, the smoother the appraisal and approval.
• Debt-to-income and income documentation, same as any mortgage.

A note on owner-builder loans

If you're thinking about acting as your own general contractor to save money, know that owner-builder construction loans are much harder to get. Most lenders won't consider one unless you work in construction or have successfully run a build before, and they charge higher rates with stricter terms — because owner-built projects fail more often. For nearly everyone building a first custom home, financing through a licensed builder is both easier to fund and less risky.

Loan options beyond a conventional construction loan

Depending on who you are, a few specialized programs can lower the barrier:

• FHA one-time-close construction loans — lower credit and down-payment thresholds, at the cost of mortgage insurance.
• VA construction loans — for eligible veterans and service members, potentially 0% down. These are a real advantage for qualifying Central Valley veterans building a home.
• USDA construction loans — for eligible rural properties, which covers a lot of the land outside Visalia, Tulare, and the smaller Tulare County towns.
• Local banks and credit unions — Central Valley institutions like Valley Strong Credit Union and other regional lenders offer construction programs and often understand local builders, lots, and permitting better than a national call center. A local loan officer who's funded builds in Tulare County is worth seeking out.

Lining up financing before you break ground: a step-by-step

Here's the order I walk clients through so the money is ready when the plans are:

1. Get pre-qualified early. Before you fall in love with a plan, talk to a construction lender so you know your real budget. This shapes everything downstream — see our cost-to-build breakdown for Tulare County to set realistic expectations.
2. Lock the lot. Lenders need the parcel identified. If you already own land, its equity may cover much of your down payment.
3. Choose your builder before finalizing plans. A builder can price your design before you spend thousands drafting something the loan won't cover. This is the core argument for design-build over the traditional path.
4. Assemble the loan package. Final plans, a line-item budget, the signed construction contract, your builder's license and insurance, and a timeline.
5. Choose one-time-close vs. two-close based on how much rate certainty you want and whether you expect to refinance.
6. Close, then draw. Once funded, the build begins and draws release on schedule. Knowing how long the build takes helps you plan the interest-only payments across the 12–18 months.

The bottom line

A construction loan isn't as complicated as it first looks — it's a short-term, milestone-funded loan that either converts to or gets replaced by a normal mortgage when your home is finished. The two decisions that matter most are picking the right structure (one-time close for most people) and having complete plans, a solid budget, and a licensed builder who can keep the draw schedule clean.

Get those pieces in place early and financing stops being the scary part of building. If you're weighing a custom build in Visalia, Tulare, Hanford, or anywhere in Tulare County and want a realistic budget and timeline to take to a lender, that's exactly what a first consultation is for.