What is the difference between a one-time close construction loan and a traditional construction loan?
A one-time close construction-to-permanent loan combines the construction financing and permanent mortgage into one loan closing. A traditional construction loan, also called a two-time close construction loan, finances the building phase first and requires a second mortgage closing when the custom home is complete.
Although the one-time close option sounds simpler, it is not automatically the best financial choice. Your loan amount, interest rate, down payment, credit score, builder, construction timeline, completed value, contingency reserve, and future refinance opportunities all affect which custom construction loan makes the most sense.
Before choosing a loan, review our step-by-step guide to buying land, financing construction, and building a custom home in California.
You can also visit our Renovation and Custom Construction Loan Hub to explore financing resources, planning tools, videos, and complimentary guides.
What Is a Construction Loan?
A construction loan provides financing for the costs associated with building a home from the ground up.
Unlike a mortgage for an existing home, the lender does not release all the construction money at once. Funds are distributed through a series of draws as the builder completes specific stages of construction.
A typical draw schedule might include funds for:
- Site preparation and foundation
- Framing
- Roofing, windows, and exterior work
- Plumbing, electrical, and mechanical systems
- Insulation and drywall
- Cabinets, flooring, and interior finishes
- Landscaping and final completion
Before approving the loan, the lender will evaluate the borrower, building plans, engineering reports, construction contract, detailed cost breakdown, general contractor, proposed draw schedule, contingency reserve, and estimated completed value of the home.
How Does a One-Time Close Construction Loan Work?
A one-time close construction loan, also known as a construction-to-permanent loan, combines the construction phase and permanent mortgage into a single transaction.
The borrower closes before construction begins. The lender then releases construction funds through draws as the home is built.
After the home is completed and the lender receives the required completion documents, the construction loan converts into a regular principal and interest mortgage.
Benefits of a One-Time Close Construction Loan
Potential benefits include:
- One primary loan closing
- One initial set of closing costs
- Construction and permanent financing arranged upfront
- Permanent loan terms established before construction begins
- Less exposure if mortgage rates rise while the home is being built
- No need to search for a new permanent mortgage immediately after completion
- A more streamlined transition from construction financing to a regular mortgage
One-time close does not always mean the lender will never review your financial information again. Depending on the loan program and construction timeline, updated income, employment, credit, asset, insurance, appraisal, or completion documents may be required before the loan converts.
Interest-Only Payments During Construction
One of the most attractive features of many construction loans is the interest-only payment structure during construction.
You are generally charged interest only on the construction funds that have actually been disbursed, not the full loan amount from the first day.
For example, if your approved construction loan is $1,950,000 but only $300,000 has been released during the early stages of construction, your interest payment is generally calculated using the $300,000 that has been drawn.
As additional funds are released to the builder, the outstanding balance increases and the interest-only payment gradually rises.
This helps keep the initial payments lower while the home is in the early stages of construction. Once the home is complete and the loan converts to permanent financing, the borrower begins making regular principal and interest payments based on the final loan balance and permanent loan terms.
The exact payment calculation, draw schedule, inspection process, and conversion terms will vary by lender.
The Interest Rate Tradeoff With a One-Time Close Loan
Construction financing carries more risk for the lender than a mortgage secured by a completed home.
Depending on the program and market, construction loan interest rates may be approximately 0.75 to 1.00 percentage points higher than comparable financing for a completed home. Actual pricing varies based on the loan amount, credit profile, loan-to-value ratio, reserves, builder, property, construction term, and market conditions.
The permanent rate included in a one-time close loan may also be higher than the standard mortgage rate you could obtain after the home is complete.
In a declining-rate market, you may end up refinancing the one-time close loan anyway to capture a lower permanent mortgage rate.
That does not necessarily make the one-time close structure a poor choice. It may still provide valuable protection, certainty, and convenience during construction. It simply means the borrower should consider both the initial financing strategy and the potential post-construction refinance strategy.
If you plan to replace a higher construction-to-permanent rate after completion, review the best questions to ask when shopping for a refinance before comparing lenders and closing costs.
What Is a Two-Time Close Construction Loan?
With a two-time close construction loan, the borrower first obtains a construction-only loan.
That loan finances the home during the building period. When construction is complete, the borrower applies for a separate permanent mortgage to pay off the construction loan.
Because the permanent mortgage is a new transaction, the borrower will generally complete a second underwriting process and pay a second set of closing costs.
Benefits of a Two-Time Close Construction Loan
A two-time close strategy may allow the borrower to:
- Shop among more permanent mortgage lenders after completion
- Obtain a standard mortgage rate based on a completed home
- Choose from more permanent loan programs
- Take advantage of lower rates if the mortgage market improves
- Select a different loan term or structure after construction
- Avoid keeping a higher construction-to-permanent rate for the full mortgage term
Risks of a Two-Time Close Construction Loan
The second mortgage is not guaranteed simply because the borrower qualified for the original construction loan.
The borrower must generally qualify again. Changes in employment, income, credit, monthly debts, property value, interest rates, insurance, or lending guidelines can affect the new approval.
Mortgage rates might fall during construction, but they could also rise.
A two-time close also creates a second set of potential expenses, which may include:
- Lender fees
- Title and escrow charges
- Recording fees
- Appraisal expenses
- Prepaid interest
- Insurance and tax reserves
- Other third-party closing costs
Could Refinancing Still Make Financial Sense?
Yes. This is especially important when comparing jumbo construction financing with a standard jumbo mortgage on a completed home.
Even after paying another set of closing costs, refinancing could make financial sense if the permanent mortgage rate is meaningfully lower.
The complete analysis should also consider:
- How long you plan to keep the home and mortgage
- Total interest savings
- Available cash
- The new loan term
- Whether extending the term increases long-term interest
- Prepayment provisions
- Qualification requirements
- The opportunity cost of paying closing costs
Refinancing is never guaranteed. The borrower must qualify under the rates, property values, and lending guidelines available at that time.
Is $1 Million the Dividing Line Between Conforming and Jumbo?
No. Some lenders may limit a particular one-time close product to loan amounts below $1 million, but $1 million is not a universal mortgage rule.
Jumbo status is based on the requested loan amount compared with the conforming loan limit for that county and year. It is not based solely on the lot price, construction contract, or total project cost.
For 2026, the one-unit conforming loan limit in El Dorado County is $832,750. A loan above that limit will generally fall into the jumbo category, even if the loan amount is below $1 million.
In other California counties, the conforming loan limit may be higher.
If your requested loan exceeds the county’s conforming loan limit, read our Complete Guide to Jumbo Home Loans to learn about credit scores, reserves, down payments, and qualification requirements.
What Credit Score Is Required for a Construction Loan?
Credit-score requirements depend on the loan amount and construction loan program.
For the programs discussed in this article, the general minimum credit-score requirements are:
- Conforming construction-to-permanent loan: 680 FICO score or higher
- Jumbo construction loan: 720 FICO score or higher
- Ground-up investor construction loan: 720 FICO score or higher
Meeting the minimum credit-score requirement does not guarantee approval.
The lender will also evaluate:
- Income and employment
- Monthly debts
- Credit history
- Cash available for the project
- Land equity
- Required reserves
- Construction budget
- Builder qualifications
- Proposed completed value
- Loan-to-value ratio
- Overall strength of the loan file
A borrower at the minimum credit score may need stronger compensating factors than a borrower with excellent credit, substantial reserves, and a lower loan-to-value ratio.
Because credit requirements can change, borrowers should have their credit reviewed before purchasing land or signing a nonrefundable construction contract.
A Real Custom Construction Loan Example in Serrano
One of my clients is currently preparing an offer on a lot in the beautiful Serrano community of El Dorado Hills, California.
The preliminary project numbers are:
- Lot purchase price: $595,000
- Estimated construction cost: $2,200,000
- Estimated cost before contingency and certain additional expenses: $2,795,000
- Estimated completed or end value: $3,000,000
For the jumbo construction program being considered, the maximum loan is based on 65% of the estimated end value.
At a $3,000,000 end value, 65% equals a potential maximum loan amount of approximately $1,950,000, subject to the program’s final appraisal, cost analysis, underwriting, and loan guidelines.
This is more accurately described as a 65% loan-to-value requirement. It means the borrower must have substantial cash or equity in the project.
Based on the preliminary $2,795,000 land and construction cost, the difference between the project cost and a $1,950,000 maximum loan is approximately $845,000 before closing costs, financing expenses, contingency requirements, or other project costs.
Why This Client’s Timing Works
Timing is critical with a construction-to-permanent loan.
Many construction lenders require the builder to break ground within a specific period after the loan funds. For the program being used in this client’s situation, construction must begin within 60 days of funding.
Fortunately, this client is not starting with only an idea and a vacant lot.
The builder already has:
- Architectural plans
- Engineering reports
- A detailed construction budget
- The project moving through the permit process
- An expectation that permits will be available within the next several weeks
Because the plans, engineering, budget, builder, and permits are already well underway, the project should be ready to break ground within the lender’s required 60-day window.
This is why financing preparation must begin long before closing. A buyer who purchases land first and then starts designing the home may not be ready to meet a construction lender’s start deadline.
Permit timing and construction-start requirements vary by city, county, lender, builder, and loan program.
Why a 10% Contingency Reserve Matters
Large custom-home projects rarely follow the original budget perfectly.
Material costs can change. Excavation may reveal unexpected site conditions. Engineering requirements may be revised. The buyer may request upgrades or change orders. Labor costs may increase, and finishes selected later may cost more than originally estimated.
For that reason, construction lenders commonly require a contingency reserve.
On a $2,200,000 construction contract, a 10% contingency reserve would be approximately $220,000.
The borrower should mentally and financially treat that reserve as part of the project budget.
Do not plan the project under the assumption that the entire contingency will remain unused. Earmark it for construction from the beginning. If the project is completed without needing all of it, you can be pleasantly surprised.
Depending on the loan program, unused contingency funds may reduce the amount ultimately drawn rather than being returned to the borrower as cash.
The contingency reserve can protect the project from delays and help prevent a cost overrun from turning into a financing emergency.
Adding the $220,000 contingency to the initial $2,795,000 land and construction estimate creates a planning total of approximately $3,015,000 before certain financing and closing expenses. That is very close to the estimated $3,000,000 end value, which makes detailed cost control and appraisal support especially important.
Why Land Loans Are Harder to Find
Land loans are still more difficult to find than mortgages secured by completed homes.
Vacant land creates additional risk for lenders. Its value can be affected by zoning, utilities, access, soil conditions, environmental issues, easements, engineering requirements, permit restrictions, and whether the proposed home can actually be built.
Land can also take longer to sell if a borrower experiences financial difficulty.
Fannie Mae and Freddie Mac focus primarily on residential mortgages secured by completed homes. They generally do not purchase stand-alone vacant-land loans. As a result, land financing is usually provided by portfolio banks, credit unions, private lenders, or specialty investors.
These programs may require:
- A large down payment
- Strong credit
- Significant cash reserves
- A shorter loan term
- A clear construction plan
- Evidence that the property is buildable
- A realistic exit strategy
We do have access to potential land-loan sources, but planning ahead is essential.
Can You Be Your Own General Contractor?
Many construction lenders require an independent, experienced, and properly licensed general contractor to manage the project.
Even if the borrower is a licensed general contractor, lenders may not allow that borrower to serve as the builder for their own owner-occupied home.
This is often a financing restriction rather than a question of whether the borrower has construction knowledge. The lender must manage completion risk, construction draws, inspections, cost overruns, subcontractor payments, mechanic’s liens, and potential conflicts of interest.
California may permit certain owner-builder arrangements, but that does not mean a mortgage lender will finance the arrangement.
Before committing to a project, confirm both:
- What California and the local building department permit
- What the proposed construction lender will finance
What Is a Ground-Up or Spec Construction Loan?
Ground-up construction loans for professional builders are different from owner-occupied construction-to-permanent mortgages.
These business-purpose loans are often called spec-construction loans. They are designed for licensed builders constructing homes to sell rather than occupy.
A spec-construction lender may review:
- The builder’s license
- Ground-up construction experience
- Previously completed projects
- Proof that prior homes were owned, completed, and sold by the builder
- Project costs
- Proposed finished value
- Local comparable sales
- Builder liquidity
- Cash reserves
- Borrower equity
- Expected profit
- Exit strategy
One available program may require the licensed general contractor to have completed, owned, and sold at least one ground-up construction project during the previous 36 months.
That project would need to be documented in the contractor’s personal name or business entity, with public records showing the property was completed and sold.
Other lenders may require more experience. Builder-experience guidelines are program-specific.
Spec-construction loans are generally more expensive than owner-occupied construction financing in both rate and fees.
Licensed contractors and developers building homes for sale can also explore our Ultimate Guide to Real Estate Investing for additional information about financing strategy, liquidity, risk, and building long-term wealth.
How to Choose Between a One-Time and Two-Time Close
Before selecting a construction loan, compare:
- Required cash investment
- Minimum credit score
- Maximum loan-to-value ratio
- Treatment of land equity
- Construction interest rate
- Permanent mortgage rate
- Interest-only payment calculation
- Draw and inspection fees
- Initial and permanent closing costs
- Builder-approval requirements
- Permit requirements
- Required construction-start date
- Construction completion deadline
- Extension fees
- Contingency reserve
- Liquidity and reserve requirements
- Requalification risk
- Future refinance opportunities
- Expected refinance break-even period
A one-time close may provide valuable convenience and protection if mortgage rates rise.
A two-time close may provide greater flexibility and better permanent mortgage pricing after the home is complete.
In a declining-rate market, either borrower may eventually choose to refinance. The goal is to structure the construction financing so the home can be completed successfully while preserving good long-term mortgage options.
Inspiration Comes Before Financing
Before you select a loan, determine where you want to build and what type of home you want to create.
Think about more than square footage and bedroom count. Consider how you want to live in the home.
Ask yourself:
- What community and location fit my lifestyle?
- Do I want a one-story or two-story home?
- How many bedrooms, bathrooms, and workspaces do I need?
- Do I need space for children, parents, guests, or multiple generations?
- How important are outdoor living, a pool, or an entertainment area?
- What rooms will my family use every day?
- Which features are essential?
- Which upgrades would be nice but are not necessary?
- How long do I expect to live in the home?
- What design decisions could affect future resale value?
Building a custom home can be one of the most stressful purchases a family makes because there are so many decisions.
The clearer you are about what you want before construction begins, the easier it becomes to communicate with your architect and builder. Clarity can reduce change orders, control costs, shorten decision times, and make the entire experience less stressful.
Start gathering inspiration early. Save examples of floor plans, kitchens, bathrooms, lighting, flooring, outdoor spaces, storage solutions, and architectural styles. Then organize those ideas into must-haves, preferences, and future possibilities.
Getting clear about the home and lifestyle you want is an important first step. Our guide to buying your dream home in California can help you define your priorities before making major design and financing decisions.
You can also download our complimentary Custom Home Blueprint Planner to clarify your vision, identify priorities, and begin organizing your custom-home ideas.
Use our VISION Planner GPT App to work with AI, explore ideas, compare features, organize inspiration, and think through the home you want to build.
The Right Team Matters
A successful custom-home project requires the right team working together from the beginning.
That team should include:
- A knowledgeable real estate professional
- An experienced architect or designer
- A licensed and lender-approved general contractor
- Qualified engineers and other specialists
- An experienced mortgage advisor who understands custom construction loans
Your builder needs to understand the lender’s draw and inspection process. Your architect needs to design with the site, budget, and local requirements in mind. Your real estate professional needs to help you evaluate the land and location.
And you need me, your expert mortgage advisor experienced in custom construction financing, to help connect the project budget, completed value, borrower qualifications, builder approval, loan structure, and construction timeline.
The best time to discuss financing is before you purchase the lot, finalize the construction contract, or make nonrefundable commitments.
❓FAQs About Custom Construction Loans
Credit-score requirements depend on the loan amount and program.
For the construction loan programs discussed in this article, the general minimums are:
Conforming construction-to-permanent loan: 680 FICO score
Jumbo construction loan: 720 FICO score
Ground-up investor construction loan: 720 FICO score
A qualifying credit score does not guarantee approval. The lender will also review income, debts, reserves, available cash, land equity, loan-to-value ratio, builder qualifications, and the overall strength of the loan file.
A one-time close combines construction financing and the permanent mortgage into one loan transaction.
A two-time close begins with a construction-only loan. Once the home is complete, the borrower must obtain a separate permanent mortgage.
The one-time close can reduce the initial number of closings and provide more certainty during construction. The two-time close may provide access to better permanent mortgage pricing, but it requires the borrower to qualify again.
Down payment and equity requirements depend on the loan program, completed value, project cost, and borrower qualifications.
For the jumbo example in this article, the maximum loan equals 65% of the estimated $3,000,000 end value. That produces a potential maximum loan of approximately $1,950,000.
The borrower must provide the remaining required investment through cash, eligible land equity, or a combination of the two.
Most construction loans require interest-only payments during construction.
The borrower generally pays interest only on funds that have been disbursed. As more money is released through construction draws, the outstanding balance and interest payment increase.
Once the home is complete and a construction-to-permanent loan converts, regular principal and interest payments begin.
A contingency reserve protects the project against unexpected costs, including site conditions, material increases, engineering changes, permit requirements, labor costs, and buyer change orders.
On a $2,200,000 construction contract, a 10% reserve equals approximately $220,000.
Borrowers should earmark the reserve for construction and be pleasantly surprised if the entire amount is not needed.
Requirements vary by lender, but the project must be ready to meet the lender’s construction-start deadline.
For the client example in this article, the builder must break ground within 60 days after funding. The plans and engineering reports are already complete, and permits are expected within several weeks.
A borrower who is still developing preliminary plans may not be ready to close a construction loan.
Many construction lenders require an independent, experienced, and properly licensed general contractor.
Even if the borrower is a licensed contractor, the lender may not permit the borrower to build their own owner-occupied home.
California may allow certain owner-builder arrangements, but the construction lender is not required to finance them.
An experienced licensed contractor may qualify for a business-purpose ground-up or spec-construction loan.
For the investor program discussed here, the borrower generally needs a minimum 720 FICO score and at least one documented ground-up construction project completed, owned, and sold within the previous 36 months.
The lender will also review borrower equity, liquidity, reserves, project costs, completed value, expected profit, and exit strategy.
Ready to Build Your Custom Home?
Whether you are ready to purchase land, already have plans, or are simply collecting ideas, we can help you understand what may be possible.
During your complimentary exploration call, we can discuss:
- Where you want to build
- The type of home you envision
- Your estimated land and construction budget
- Available cash and land equity
- One-time close and two-time close options
- Conforming and jumbo construction financing
- Builder and permit requirements
- The steps needed to move from inspiration to construction
Book your complimentary Custom Home Exploration Call today and let’s start creating a financing strategy for the home you have always imagined.
This article is for general educational purposes and is not a commitment to lend, rate quote, or individualized financial, legal, tax, appraisal, or construction advice. Loan programs, rates, fees, loan limits, credit-score requirements, loan-to-value requirements, contingency requirements, builder qualifications, and construction timelines vary by lender and are subject to change. All financing is subject to underwriting and approval.
