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Fannie Mae & Freddie Mac Single-Close Construction

Build with conventional financing and mortgage insurance that actually goes away

A conventional construction-to-permanent loan funds the land, the build, and your permanent mortgage in one closing — backed by Fannie Mae or Freddie Mac. As a brokerage, North Bay Capital shops the widest menu of lenders for the best fit on your Sonoma County or California build.

10%–20%Typical down payment
1Closing, construction to permanent
CancellablePMI drops off as you build equity
$0Household income cap (none)
The short version

A conventional construction loan is a single-close, construction-to-permanent mortgage backed by Fannie Mae or Freddie Mac. It typically needs 10%–20% down, and if you put less than 20% down, the PMI cancels once you build enough equity — unlike FHA's lasting mortgage insurance. It's the most flexible option for move-up buyers with decent credit, has no household income caps, and comes with the widest lender menu of any construction program.

Conventional Construction Loans

Programs we broker

The options under conventional construction loans — and the right fit for each.

Conventional Single-Close Construction-to-Permanent Loan

One closing covers the lot, the build, and the permanent conforming mortgage.

This is the conventional answer to building from scratch. Fannie Mae and Freddie Mac both allow a single-close construction-to-permanent loan: you close once, draw funds in stages as the home is built, pay interest only on what's drawn during construction, and then the loan converts to a standard conforming mortgage when it's finished. One set of closing costs, one approval, no second refinance to arrange when the dust settles.

Compared to FHA and government construction loans, conventional gives you the widest lender menu and the most flexible terms — 15- or 30-year fixed, no household income caps, and no lasting mortgage insurance. If you put down less than 20%, you'll carry PMI, but it cancels automatically as your equity grows. For a move-up buyer rolling equity from a prior sale into a new build, this is usually the lowest long-term cost. We'll compare it head-to-head against FHA, VA, and USDA when those apply.

Down payment
Typically 10%–20% (varies by lender and credit — verify)
Mortgage insurance
PMI only if under 20% down; cancellable as equity builds
Credit score
Generally 620 minimum, best pricing 740+
Loan basis
Lesser of finished appraised value or total land-plus-cost
Loan limits
Conforming (verify current Sonoma County limit)
Right fit for
  • Move-up buyer rolling equity from a prior sale into a new build
  • Buyer with strong credit who wants PMI that eventually cancels
  • Household above USDA income limits who still wants a single close
  • Owner of a Sonoma County lot building a primary or second home

Conventional Construction Loan on an Owned Lot

Fold the land you already own into one conforming construction loan.

If you already own your lot, a conventional construction-to-permanent loan can wrap it into the financing and often let the land's equity count toward your down payment. The loan is sized on the lesser of the finished home's appraised value or your total documented cost of land plus construction — so a parcel you bought at the right price can shrink the cash you bring to closing.

Conventional also opens doors the government programs don't. Depending on the lender's guidelines, a conventional construction loan can be used for a second home as well as a primary residence, which matters for a wine-country getaway build. We'll confirm the specific lender's occupancy and down-payment rules before you lock plans, because overlays vary more on construction loans than on a standard purchase.

Land equity
Equity in an owned lot can count toward down payment
Occupancy
Primary and (with many lenders) second home
Terms
15- or 30-year fixed; some lenders offer ARMs
Builder
Licensed, insured general contractor approved by the lender
Overlays
Vary by lender — reserves, credit, and draw rules differ (verify)
Right fit for
  • Buyer who owns a lot and wants land equity to reduce cash to close
  • Second-home build in Sonoma or Napa wine country
  • Borrower who wants a 30-year fixed locked at the single closing
  • Move-up buyer who doesn't fit FHA or USDA guidelines
Run the numbers

Calculators for this loan

Frequently asked

What people ask before they apply

How much do I need to put down on a conventional construction loan?

Most conventional construction-to-permanent loans run 10% to 20% down, though the exact figure depends on the lender, your credit, and whether it's a primary or second home. If you put down less than 20%, you'll carry PMI, but unlike FHA that insurance cancels as you build equity. If you already own the lot, its equity can count toward your down payment.

What's the difference between a conventional and an FHA construction loan?

The biggest practical difference is mortgage insurance. FHA has an upfront premium plus annual MIP that usually stays for the life of the loan, but allows as little as 3.5% down with lower credit. Conventional needs more down and better credit, but has no upfront premium and its PMI cancels. For a buyer with decent credit and some equity, conventional is often the lower long-term cost. Because we're a brokerage, we run both side by side.

Is a conventional construction loan one closing or two?

The product we focus on is a single-close, construction-to-permanent loan. You close once, build with staged draws, and the loan converts to a standard conforming mortgage when the home is finished — no second application and no separate refinance. Some lenders only offer a two-close structure, so we specifically shop for the single-close option.

Are there income limits on a conventional construction loan?

No. Unlike USDA, conventional financing has no household income caps. That makes it the natural fit for move-up buyers and higher earners who'd be over the USDA limit but still want a single-close construction loan with cancellable mortgage insurance.

Can I use a conventional construction loan for a second home?

Often, yes — depending on the lender's guidelines. Conventional is one of the few construction programs that can finance a second home, not just a primary residence, which matters for a wine-country or coastal getaway build in Northern California. Down-payment and occupancy rules are stricter for a second home, so we confirm the specific lender's overlays before you commit.

What credit score do I need to build with a conventional loan?

Most conventional construction loans want a minimum score around 620, but construction lenders often apply overlays above that, and the best pricing shows up at 740+. Conventional pricing is risk-based, so a stronger score meaningfully lowers your rate. If your score is on the edge, we'll compare conventional against FHA and VA construction options.

What are the conforming loan limits for a California construction loan?

Conventional construction loans have to fit within the annual conforming loan limit for your county, set by the Federal Housing Finance Agency. High-cost California counties carry higher limits than most of the country, and Sonoma County sits in its own tier. We confirm your county's current figure before you lock, and if your build runs above it, we'll look at a jumbo construction option.

How are the construction funds released during the build?

In stages, called draws, tied to completed phases and inspections — foundation, framing, and so on. During construction you typically pay interest only on the funds that have actually been drawn, not the full loan, which keeps your payment lower while the home goes up. When the final inspection clears, the loan converts to your permanent mortgage.

Ready when you are

See whether conventional is your lowest-cost path to build

Conventional construction financing gives you the widest lender menu and mortgage insurance that actually goes away — but the only way to know if it beats FHA, VA, or USDA for your build is to run the numbers. Call Jesse Gonzalez at North Bay Capital at 707-595-5393, or email jesse@northbaycap.com, and we'll compare real lender offers for your scenario.