If you’ve started researching how to finance a custom home, you’ve probably run into the term “construction-to-permanent loan” without much explanation of what actually happens after you sign. It’s the loan structure most Silicon Valley custom-build buyers end up using, and knowing it exists isn’t the same as knowing how the money moves from groundbreaking to move-in day.
Quick answer: A construction-to-permanent loan closes once, upfront, and pays out in draws as your home gets built. Once construction finishes and passes final inspection, the loan converts automatically into a standard mortgage, no second closing and no second round of closing costs.
How the Construction Phase Actually Works
As we outline in how custom-build financing works, the loan closes and the rate locks before a single shovel goes into the ground. From there, the lender doesn’t hand over the full amount at once. Funds get released in draws tied to specific, inspected milestones, foundation, framing, roofing, and so on, with an inspector confirming each stage is actually done before the next draw goes out.
During this phase, you’re only paying interest on the money that’s actually been drawn, not the full loan balance. That’s a meaningful difference from a regular mortgage payment, and it’s part of why the monthly cost during construction tends to be lower than people expect, even though the loan amount on paper looks large.
If you haven’t settled on a lot yet, it’s worth running this financing conversation in parallel with your site search rather than after it. Browsing what’s currently available through AL Homes’ own listings alongside talking to a lender keeps your budget and your site options aligned instead of finding a lot you love and then discovering the numbers don’t work.
How Conversion to Permanent Financing Happens
Conversion isn’t something you have to apply for separately. Once the home passes its final inspection and gets a certificate of occupancy, the loan shifts automatically from the interest-only construction phase into a standard amortizing mortgage. There’s no second closing and no second set of closing costs, which is the main reason buyers choose this structure over a standalone construction loan in the first place.
Whether your rate is locked at the original closing or adjusts slightly at conversion depends on the specific lender and loan product, so it’s worth confirming directly rather than assuming either way. It’s one of the few genuine variables in an otherwise fairly standardized process.
What Qualifies You for This Loan Type
Underwriting on a construction-to-permanent loan looks at more than your credit and income. Lenders also evaluate the builder’s track record, since the project’s completion is part of what they’re underwriting against. Down payment expectations typically run 10 to 20%, and you’ll need a detailed, category-by-category budget rather than a single lump-sum estimate.
Construction-to-Permanent vs. a Standalone Construction Loan
A standalone construction loan only covers the build itself. Once it’s finished, you refinance separately into a mortgage, which means two closings, two sets of closing costs, and exposure to rate movement between the two. A construction-to-permanent loan folds both into a single loan and a single closing, locking in your rate structure before construction even starts.
That single-closing structure is a big part of why it’s the default choice for most Bay Area custom builds. It removes the uncertainty of qualifying for a second loan once construction wraps, and it locks your rate before market conditions get a chance to move against you mid-build. A standalone construction loan can still make sense in narrower cases, like a buyer planning to sell shortly after completion rather than hold permanent financing, but for most buyers building a home they intend to keep, the single-closing structure is the more predictable path.
Frequently Asked Questions
Can the rate change between the construction phase and the permanent phase?
Can the rate change between the construction phase and the permanent phase?
It depends on the lender and the specific loan product. Some lock a single rate at closing that carries through both phases; others adjust slightly at conversion. Ask this directly before you commit to a lender.
What happens if construction finishes early or late?
What happens if construction finishes early or late?
Draws are tied to milestones, not a calendar, so finishing early or slightly late doesn’t usually change the loan structure itself. A significant delay can affect interest costs during the construction phase, since you’re paying interest the whole time the loan is in draw status.
Do I need a new appraisal when the loan converts to permanent financing?
Do I need a new appraisal when the loan converts to permanent financing?
Most lenders don’t require a second appraisal at conversion, since the original loan was already sized against the completed home’s projected value. Confirm this with your specific lender, as requirements vary.
Is a construction-to-permanent loan harder to qualify for than a regular mortgage?
Is a construction-to-permanent loan harder to qualify for than a regular mortgage?
The bar is different, not necessarily higher. Lenders look closely at your builder’s history and your project budget in addition to the usual credit and income review, which is why building with an established builder tends to move faster through underwriting.
Ready to Talk Through Your Financing?
Figuring out which financing path fits your project is easier once you’re looking at real numbers instead of general ranges. Talk to the AL Homes team about your specific build, or start browsing available lots and homes to see what’s realistic in your target area right now.
