How construction loans differ from traditional mortgages

Key takeaways

• Construction loans can be more difficult to qualify for than traditional mortgages. Because lenders are financing a home that does not yet exist, buyers can face stricter credit requirements, larger down payments and more scrutiny of their finances.
• Lenders evaluate both the buyer and the building plan. In addition to assessing credit, income and savings, lenders require a licensed builder, detailed plans, a realistic budget and a clear construction timeline to reduce risk.
• Buyers must choose between flexibility and simplicity when selecting loan types. Construction-only loans offer more flexibility but require two closings, while construction-to-permanent loans simplify the process with one closing but limit future lender options.

When you buy an existing home, you typically take out a mortgage. But building a house requires a different kind of financing.

Because lenders are funding a property that has not yet been built, construction loans come with stricter requirements, higher upfront costs and more documentation. Understanding how construction loans work — and how they differ from traditional mortgages — can help buyers decide whether building a home is the right move.

To buy a house, most people have a mortgage, a loan that they pay interest on to cover the cost of the home.

For people who want to build a home, you will likely need a loan, but the type of loan is different because the lender is investing in a home that doesn’t exist yet.

Since there is no structure initially to back the loan if payments are not made, lenders will require more assurances that the home will deliver. They also need to know that your cost estimate is accurate, so you have enough money to complete the construction

For borrowers, that means the bar to securing a loan can be higher.

Similar to getting a mortgage, the lender will assess your financial readiness by looking at your credit score, income, savings and debt-to-income ratio.

“Most lenders have a minimum credit rating in the 680 range, a low debt-to-income ratio, and income history and cash reserves,” said Daniel Cabrera, owner of Roof Direct San Antonio in San Antonio, Texas. 

Construction loans are riskier for lenders. Buyers need to be ready to take on a project that could cost more than anticipated. Be ready to provide the lender with lots of information as they review your application.

“The first thing to do when you are planning to apply for a construction loan is to organize your financial documents and verify your credit standing before meeting a lender,” Cabrera added. “This is important because construction loans are harder to qualify for compared to traditional mortgages.”

The down payment for a conventional mortgage on an existing home can go as low as 3% or 5%, but for a newly built house, most lenders will want to see a 20% to 25% down payment.

The buyer’s ability to pay is one piece of the puzzle.

• Review your credit score and overall credit history.
• Confirm your debt-to-income ratio is within lender guidelines.
• Gather proof of income and employment history.
• Take stock of savings and available cash reserves.
• Organize financial documents before contacting a lender.
• Verify your credit standing and address any issues early.
• Prepare for higher qualification standards than a traditional mortgage.
• Budget for a down payment of 20% to 25% for a new build.
• Plan for potential cost overruns and financial risk during construction.

Lenders will most likely require that you have a licensed builder on your team who has proven their ability to build a home on budget. When searching for a builder, a lender is going to look for their track record and ask about their reputation.

“Choosing a builder early in the process is very important, especially when applying for a construction loan,” Cabrera said. “This is because most lenders would not approve a construction loan without an approved and licensed builder. The builder must be able to provide a signed construction contract, a scope of work, a set of plans and specifications, a construction timeline and financial history or references.”

Next, the lender will look at the budget and plan. Your builder team is the expert here, so it will need to provide an architectural plan and a detailed budget broken down into line-item costs.

“The lender will order an appraisal based upon the plans and specifications to evaluate the projected value of the completed home,” Cabrera said. “They also compare the construction budget to local cost-per-square-foot benchmarks to make sure the numbers are reasonable. If the budget appears inflated or unreasonably low, this also serves as a red flag.”

The construction timeline is also important, since the longer the project, the more it typically costs.

“In addition, the lender evaluates the construction schedule to make sure it fits within the loan term, which is generally a 12-month term for the construction phase,” Cabrera said. “An organized builder with clean documentation makes the lender’s task much easier and more likely to get approved.”

If you still need to purchase land to build on, then that will need to be included in the budget and project plan.

• Hire a licensed and experienced builder early in the process.
• Confirm the builder’s track record and reputation.
• Obtain a signed construction contract from the builder.
• Secure a detailed scope of work.
• Provide architectural plans and specifications.
• Prepare a construction timeline that fits within a 12-month loan term.
• Create a detailed, line-item construction budget.
• Ensure budget estimates align with local cost-per-square-foot benchmarks.
• Be prepared for a lender-ordered appraisal based on completed-home value.
• Organize builder documentation clearly and thoroughly.
• Include land purchase costs in the budget if the land is not yet owned.

There are two main types of construction loans for new builds: a construction loan and a construction-to-permanent loan.

Regardless of the type of loan, you will start with paying interest on only the money that has been drawn upon for the project. So, if you have a loan approved for up to $500,000 but the builder has only drawn on $100,000, then you are only paying the interest on the $100,000. What interest rate you are paying will vary.

This type of loan only covers the cost of construction. Once the home is built, it can be converted into a mortgage. This gives the buyer a chance to refinance and possibly get a better rate, depending on the market.

Pros

• Flexibility in financing options. Once construction is finished, you can shop around for the best mortgage rate or lender.
• Useful if plans may change. This option can work well if you expect to sell the property or refinance quickly after completion.
• Interest-only payments during construction. Borrowers typically pay interest only on the funds drawn, not the full loan amount.

Cons

• Two loan closings. You’ll need one closing for the construction loan and another for the mortgage, increasing fees and paperwork.
• Rate uncertainty. Mortgage rates are not locked in during construction, which can create risk if rates rise before refinancing.
• Stricter qualification twice. You must requalify financially for the permanent loan, which can be a problem if income or credit changes.
• More overall costs. Two appraisals, two sets of fees and possible rate increases can raise the total cost.

This loan automatically converts into a mortgage once the home is complete. You will only have to close on one deal, and the rate set upfront is your locked-in rate. The ease of this loan makes it popular for people.

Pros

• One closing. You close once upfront, saving time and reducing closing costs.
• Rate protection. Many lenders allow you to lock in your permanent mortgage rate before construction begins.
• Simplified process. You qualify once for the full loan, reducing paperwork and future approval risk.
• Predictable long-term planning. Knowing your mortgage terms in advance makes budgeting easier.

Cons

• Less flexibility later. You’re committed to the same lender and loan terms once the loan converts.
• Potentially higher interest rate. Rates may be slightly higher than a construction-only loan to account for long-term rate locks.
• More upfront documentation. Lenders require detailed plans, contracts and budgets before approval.
• Harder to change course. Switching lenders or selling mid-build is more complicated.