The new construction home mortgage process runs on a phased structure: you apply for either a single-close construction-to-permanent loan or a two-loan combination, the lender releases money to the builder in stages as work is completed and inspected, you make interest-only payments on what has actually been drawn, and once the finished home passes a final appraisal and receives a certificate of occupancy, the loan converts to a standard 15- or 30-year mortgage. That’s the shape of it. The details around draw inspections, rate locks, builder approval, and post-move-in property taxes are where the process either goes smoothly or costs you unexpected money.
Choosing Between a Single-Close and a Standalone Loan
The first fork in the road is whether you want one closing or two.
A construction-to-permanent loan, sometimes called a single-close loan, wraps the building phase and the long-term mortgage into a single transaction. You sit at the closing table once, the lender funds construction in stages, and when the home is finished the loan automatically converts to a 15- or 30-year mortgage. During construction you make interest-only payments on the amount drawn so far, not the full loan balance, which keeps early monthly costs down.1Fannie Mae. FAQs: Construction-to-Permanent Financing The construction period can run up to 12 months, and lenders can grant an extension to a maximum of 18 months if the project needs more time.2Fannie Mae. Conversion of Construction-to-Permanent Financing: Single-Closing Transactions You pay closing costs once, and your permanent financing terms are locked in before the first shovel hits dirt.
A standalone construction loan covers only the building phase. It usually lasts 12 months or less, and you’re responsible for securing a separate permanent mortgage to pay it off once the home passes final inspection. Two closings means two rounds of closing costs, two underwriting reviews, and the risk that your financial picture shifts between them. Lenders view standalone loans as riskier because they’re lending against unfinished collateral, so expect a higher interest rate and a down payment of 20 percent or more. The upside is flexibility: you can shop for the best permanent mortgage rate after construction wraps rather than committing months in advance.
One boundary worth noting. If you’re buying a completed home from a production builder, none of the above applies. The builder financed the construction themselves, and you take out a conventional purchase mortgage the same way you would on an existing home. No draw schedule, no interest-only period, no construction inspections.
FHA and VA Construction Loan Options
Government-backed programs lower the cash barrier if you qualify.
The FHA One-Time Close program finances the lot purchase, construction, and permanent mortgage in a single loan with a down payment as low as 3.5 percent if your credit score is at least 580. FHA loans carry mortgage insurance premiums for the life of the loan or until you refinance, which adds long-term cost, but the low upfront requirement makes this the practical option for buyers with limited savings.
Eligible veterans and active-duty service members can use the VA’s one-time close construction loan. Most VA transactions require no down payment. The general contractor must be a registered VA builder with a valid builder identification number issued before the VA appraisal, and the lender is responsible for confirming the builder is licensed, bonded, and insured under all applicable state and local requirements.3U.S. Department of Veterans Affairs. Circular 26-18-7 If you already own the lot free and clear, that equity can count toward reducing the VA funding fee.
How Draws and Interest-Only Payments Work
Construction loans don’t hand over the full loan amount on day one. Money is released in stages called draws, each tied to a construction milestone: site preparation and foundation, framing and roof, mechanical systems, interior finishes, and final completion. Before releasing each draw, the lender sends an inspector to confirm the work matches the approved plans and that the stage justifies the payment. If the inspector finds that framing doesn’t match the drawings, or that work hasn’t progressed far enough, the lender holds the funds until the builder corrects the issue. Draw inspections typically cost between $100 and $500 per visit, and those fees are usually your responsibility.
Your monthly interest-only payment is calculated on the cumulative amount drawn, not the total loan. If your loan is $400,000 but only $100,000 has been disbursed after the first draw, you pay interest on $100,000. Each draw increases your outstanding balance and your monthly payment along with it. Once construction finishes and the loan converts, you begin making full principal-and-interest payments on the entire balance.
Locking Your Rate for a Long Build
Construction timelines stretch six to eighteen months, and interest rates can move significantly in that window. Most lenders offering construction-to-permanent loans allow extended rate locks of 9 to 12 months, and some go longer. Longer locks cost more upfront because the lender takes on more interest-rate risk.
If your build runs past the lock expiration, you’ll need an extension. Each 15-day extension typically costs 0.125 to 0.375 percent of the loan amount. On a $400,000 loan, that’s $500 to $1,500 per extension, and those fees are not refundable.
A float-down provision protects you if rates drop. It lets you capture a lower rate mid-construction. Lenders usually charge 0.25 to 1 percent of the loan amount for this option, and the rate must drop by a minimum threshold, often 0.5 percent, before you can exercise it. The option doesn’t activate automatically; you have to tell your lender you want to use it, sometimes a set number of days before closing. In a stable rate environment, you’re paying for insurance you won’t use.
Documents You’ll Need to Apply
The personal documents match what any mortgage requires: W-2 forms from the past two years, recent pay stubs, federal tax returns, and bank statements showing you have the down payment and cash reserves available.4Fannie Mae. Documents You Need to Apply for a Mortgage Self-employed borrowers should expect to provide profit-and-loss statements and possibly business tax returns.
Beyond that, a construction loan requires a full project file: the signed construction contract, detailed architectural floor plans, a specifications sheet describing materials and finishes down to the foundation type and HVAC brand, and the lot’s legal description from the deed or site plan. Lenders use these details to confirm the proposed home meets local building codes and their own underwriting standards.
Why Your Builder Also Has to Be Approved
Your lender isn’t just approving you. Most lenders require the contractor to provide proof of general liability insurance naming the lender as an additional insured, a current contractor’s license, evidence of workers’ compensation coverage, and financial statements showing the business is solvent enough to complete the project. Some lenders maintain an approved-builder list and won’t fund a project with an unvetted contractor. For VA loans, the builder must be specifically registered with the VA before the appraisal can proceed.3U.S. Department of Veterans Affairs. Circular 26-18-7
Ask your builder for references from recent projects and check for unresolved complaints with your state’s contractor licensing board. A builder who can’t pass the lender’s vetting is telling you something. Discovering licensing or insurance gaps after ground is broken creates expensive complications.
Appraising a Home That Doesn’t Exist Yet
The appraiser reviews your floor plans, specifications sheet, and the building site, then estimates what the completed home will be worth based on comparable recently sold homes with similar square footage, quality, and location. Fannie Mae requires that the appraisal for new or proposed construction be based on plans and specifications, an existing model home, or other information sufficient to identify the quality and character of the improvements.5Fannie Mae. Requirements for Verifying Completion and Postponed Improvements
This prospective value becomes the collateral basis for your loan. If the appraiser’s estimate comes in lower than the contract price, you’re in the same position as any buyer facing an appraisal gap: renegotiate the construction cost, bring more cash to close, or walk away. Everything lives on paper until framing goes up, so a realistic appraisal matters more here than on an existing home where you can point to the physical structure.
Insurance Coverage During the Build
A standard homeowner’s policy doesn’t cover a house that’s being built. Before the first draw, your lender will require a builder’s risk insurance policy. This covers damage to the structure and materials during construction from events like fire, theft, vandalism, and wind. Most builder’s risk policies run for 12 months and can be extended if the build takes longer. Your lender will need to be named as loss payee.
The builder usually carries general liability insurance to cover injuries on the job site, but the builder’s risk policy protects the physical structure itself. Once the home is finished and you receive the certificate of occupancy, you’ll transition to a standard homeowner’s policy before the loan converts to permanent financing. Don’t let this handoff slip; a gap in coverage between the two policies leaves the lender’s collateral unprotected, and the lender won’t allow that.
Change Orders and Cost Overruns
Midway through the build you decide you want upgraded countertops or a different window package. Any modification to the approved plans affects the construction budget, and if the cost increases beyond what the loan covers, you pay the difference out of pocket. Lenders generally require you to submit change orders for approval before the work starts, because shifting money between budget line items can affect the finished appraised value.
Cost overruns from material price increases or unexpected site conditions create similar problems. If the total project cost exceeds the loan amount, the loan becomes “out of balance.” The lender can withhold further draws until you deposit the shortfall in cash. Many lenders require borrowers to set aside 5 to 10 percent of the total construction budget as a contingency fund before the project begins. Resist the urge to raid that fund for upgrades early on; you need it as a safety net for genuine surprises later.
Major scope changes can also trigger the need for a new appraisal. If you add 500 square feet or fundamentally change the floor plan, the original prospective valuation may no longer hold.
Credit Re-Verification Before Conversion
Here’s what catches many new-construction borrowers off guard. Your lender will check your credit and financial status again before the loan converts to permanent financing. For Fannie Mae loans, if your credit documents are more than 120 days old at the time of conversion, the lender must update your income, employment, and credit report and re-qualify you based on the new information. For loans with a loan-to-value of 95 percent or below that received an eligible automated underwriting recommendation, credit documents can be up to 18 months old.1Fannie Mae. FAQs: Construction-to-Permanent Financing
Taking on new debt, changing jobs, or missing payments during the six to twelve months of construction can derail a loan that was already approved. Treat the entire build period as a financial freeze. Don’t finance a car, don’t open new credit cards, and don’t make large unexplained deposits. The re-verification is not optional, and the lender can revoke a clear-to-close if your financial picture has deteriorated.
Certificate of Occupancy and Final Appraisal
When the builder finishes the home, the local municipality sends its own inspector to verify the structure meets all applicable building codes. If it passes, the municipality issues a certificate of occupancy, the government’s confirmation that the home is safe to live in. Without it, the lender won’t fund the permanent loan and you can’t legally move in.
After the certificate of occupancy is issued, the appraiser returns for a final inspection to confirm the finished home matches what was described in the original prospective appraisal. For Fannie Mae loans, either the appraiser documents this verification, or the borrower and builder can sign an attestation letter with supporting evidence confirming the property was completed according to the approved plans. Verification of completion is required before Fannie Mae will purchase the loan from the lender.5Fannie Mae. Requirements for Verifying Completion and Postponed Improvements
If the finished home deviates significantly from the approved plans, say a bedroom was dropped or a garage was downsized, the appraised value may come in lower than expected. That creates a last-minute loan-to-value problem that can require you to bring additional cash to closing.
Closing on the Permanent Mortgage
For a single-close construction-to-permanent loan, conversion happens automatically once construction is complete and all conditions are satisfied. The construction-related provisions in the loan rider become void, and the permanent terms take effect.2Fannie Mae. Conversion of Construction-to-Permanent Financing: Single-Closing Transactions You don’t return to the closing table. For standalone construction loans, you go through a full second closing on the permanent mortgage, complete with new closing costs.
Before either type of conversion, do a thorough walk-through of the finished home, typically a few days before or the day of the conversion date. Check that all contracted fixtures are installed, appliances work, and no damage occurred during the final construction stages. Document anything incomplete or damaged in writing and get the builder’s commitment to a repair timeline before you sign off. The lender coordinates the final disbursement of any remaining construction funds, pays off the builder, and the deed is recorded at the county recorder’s office. At that point, you own the home and your permanent mortgage payments begin.
Property Tax Escrow After Move-In
This is where new-construction buyers routinely get caught. When your lender sets up your escrow account at closing, the monthly property tax estimate is based on the most recent tax assessment, which for a newly built home usually reflects only the value of the vacant land. The completed house hasn’t been reassessed yet.
Within the first year or two, your county assessor will revalue the property to include the finished home. Your property tax bill can jump dramatically. Your escrow account won’t have enough money to cover the higher bill, creating a shortage. The lender then increases your monthly payment to cover both the new tax amount and the deficit from the underfunded period. Seeing your mortgage payment rise by several hundred dollars a month with little warning is jarring but entirely predictable if you plan for it.
Before closing, contact your local tax assessor’s office and ask for an estimate of what the property taxes will be once the finished home is assessed. Compare that figure to the tax estimate your lender used in the escrow calculation. If the numbers are far apart, set aside the difference each month in a savings account. Some jurisdictions also issue a separate supplemental tax bill after the reassessment, which may not be automatically covered by your escrow account.
Warranty Protection After You Move In
When you finance a new home through an FHA or VA loan, the builder is required to warrant the property against defects in equipment, materials, and workmanship for one year from the date of title transfer or initial occupancy, whichever comes first. The warranty also covers construction that doesn’t conform to the approved plans and specifications. You must notify the builder of any defects in writing within the one-year window, and the builder is responsible for fixing them at their own expense.6U.S. Department of Housing and Urban Development. Warranty of Completion of Construction
For conventional loans, warranty coverage depends on the builder’s contract and whether the builder participates in a third-party warranty program. Many production builders offer a tiered warranty: one year on workmanship, two years on mechanical systems, and ten years on structural defects. Read the warranty terms before you sign the construction contract, not after you move in. Pay attention to what’s excluded and what process the builder requires for filing claims. A warranty with an arbitration clause and a narrow definition of “defect” protects the builder far more than it protects you.