Mortgage Payments During Home Construction

Building a home in the Raleigh-Durham Triangle is one of the most rewarding things you can do — and one of the most misunderstood when it comes to paying for it. The question I hear most: how do the payments actually work while there's no house yet, just a foundation and a framing crew?

Here's the short version. You're not on a traditional mortgage during the build. You're on a construction loan, and it behaves nothing like the loan you'd use to buy an existing home. Let me walk you through the mechanics so nothing catches you off guard.

How construction loans work

A construction loan is a short-term loan that covers the cost of building your home. With a traditional mortgage you get one lump sum to buy a house that already exists. A construction loan is different: the money comes to you in stages that line up with the progress of the build.

Those stages are called draws. Your lender releases funds as work gets completed — site prep and foundation first, then framing, roofing, and on down the line. Because the money arrives in pieces, so does the interest you owe on it.

You pay interest only on the money that's actually been drawn — so your payments start small and climb as the house rises.

Your two financing paths

Nearly every construction borrower in the Triangle chooses between two structures. They split on one question: do you close once, or twice?

What you actually pay during the build

The flexible payment structure during construction is the biggest advantage of these loans. Two payment options come up most often.

Interest-only payments

With most construction loans, you pay interest only on the amount drawn from the loan so far. That keeps your payments lower while the house is being built — a real help if you're still paying rent or a mortgage on your current place.

Here's the math. Say your total construction loan is $300,000. In the first month, only $50,000 has been disbursed for site prep and the foundation. You pay interest on that $50,000, not the full $300,000. As more funds are drawn for framing, roofing, and the rest, your interest payments rise step by step.

Deferred payments

Some lenders offer an even more flexible option: no payments during construction at all. The interest gets added to the loan balance and paid off as part of your permanent mortgage once the home is complete.

That eases cash flow during the build. Understand the trade-off, though — it results in a higher loan balance and potentially higher long-term costs. Weigh the long-term implications of any financing decision before you sign.

Switching to a permanent mortgage

Once the home is built, you move from the construction loan to permanent financing. How that happens depends on which loan you picked.

The conversion

With a construction-to-permanent loan, the transition is automatic once construction is finished and you've received a certificate of occupancy. The loan converts to a standard mortgage, and you begin regular principal-and-interest payments.

With a stand-alone construction loan, you apply for a new mortgage to pay off the construction loan. It works much like getting a mortgage on an existing home, except your newly built house serves as the collateral.

Refinancing after the build

Even with a construction-to-permanent loan, refinancing once the home is done can make sense — if rates have dropped or your financial picture has improved since you were first approved. Confirm current rates with your lender before you decide.

Weigh the potential savings against the costs of refinancing: application fees, closing costs, and possible prepayment penalties on your original loan.

Keeping your finances steady during construction

A build is exciting. It can also stretch you financially. A few things keep clients of mine on solid ground.

Budget for more than the build

Your budget should cover more than direct construction costs — account for overruns, temporary housing, and a reserve for surprises. I tell every client to set aside a contingency fund of 10–20% of the total budget. That buffer has been a lifesaver more times than I can count when an unexpected expense lands.

Ease the strain

Time your build for when you have the most financial flexibility — after you sell your current home, say, or after a bonus lands. And look hard at temporary housing: a short-term rental or a stretch staying with family keeps you off the hook for two properties at once.

Delays and equity

Delays are common in construction. They can affect your loan terms, interest payments, and overall budget. Some lenders offer extensions, though those may carry additional fees — keep open communication with both your lender and your builder so you can address delays promptly.

As the house rises, so does your equity. Some lenders let borrowers tap that equity for upgrades or unexpected costs. It adds flexibility, but it also increases your loan balance and your long-term costs, so weigh it carefully before you draw on it.

How the draws and payments unfold

1. Close on the construction loan. One closing for a construction-to-permanent loan; the first of two for a stand-alone.
2. First draw funds site prep and foundation. You pay interest only on that first slice — small payments to start.
3. Draws release as work completes. Framing, roofing, systems, finishes. Each draw raises the drawn balance, so your interest payments step up.
4. Construction finishes and you receive the certificate of occupancy. The build is officially done.
5. Financing goes permanent. A construction-to-permanent loan converts automatically; a stand-alone loan is paid off by a new mortgage you apply for.
6. Regular payments begin. You start paying principal and interest on your standard mortgage — and consider refinancing if rates or your finances have moved.

Frequently Asked Questions