

Planning a custom home in the Cedar Rapids, Marion, or Iowa City area? A home construction loan from FSB funds your project from lot purchase to final walkthrough, with one closing and a local lender who knows the market.1
Start My ApplicationRequest Assistance
How Do Construction Loans Work?
A construction loan is a short-term loan that covers the cost of building a home. You borrow only what you need during the build, and you make interest-only payments while your home goes up. Once your home is complete, the loan converts to a permanent mortgage with no second closing. This one-time close, also called a construction-to-permanent loan, lets you sign once and lock your long-term rate up front.
What Can a Home Construction Loan Cover?
From excavation to final finishes, your construction loan can cover the essential costs that bring your home to life.
Home Construction Loan Timeline
Understand each step of the home construction loan process so you know what to expect and when to expect it.
- Pre-Approval & Budgeting
- Construction Phase Funding
- Closing & Long-Term Financing
Requirements for a Home Construction Loan
Obtaining a construction loan requires more preparation than a traditional mortgage. You'll need a qualified builder, detailed project plans, and proof that you can handle the financial side of the build.
- Construction blueprints
- Signed contract with licensed builder
- Lot or land information
- Detailed budget and cost breakdown
- Credit, income, and asset verification
- Builder license and insurance documentation
Custom Home Financing in Cedar Rapids and Iowa City
Building a custom home means your financing should fit your plan. FSB offers custom home financing for buyers in Cedar Rapids, Marion, Iowa City, and the surrounding communities, so you can fund your lot, your build, and your move-in with one loan.
You work with a local lender who reviews your plans, your builder, and your budget in person, then underwrites your loan here in Eastern Iowa.
Local Construction Loan Lenders in Cedar Rapids & Iowa City
We work directly with your builder to keep your project on track. With local underwriting and clear communication, you always know the status of your loan. Our team helps you avoid common delays and keeps financing simple.
We've helped families across Eastern Iowa turn open lots into homes. Ready to start building with FSB?
Frequently Asked Questions: Home Construction Loans
Find answers to the most common questions from homebuyers in Iowa.
How does a construction loan work in Iowa?
A construction loan provides short-term funding to pay for building your new home. Instead of receiving all the money up front, funds are distributed in phases as construction progresses.
These phases, called “draws,” are tied to milestones like pouring the foundation or finishing the roof. During construction, you’ll typically make interest-only payments on the amount drawn.
Once construction is completed, your loan automatically converts to a standard mortgage. This transition is called a construction-to-perm conversion and doesn’t require a second closing. You’ll then begin making regular principal and interest payments based on your finalized loan terms.
What’s the minimum down payment for a construction loan?
Most construction loans require a down payment of at least 10% to 20% of the total project cost.
This can vary based on your credit profile and whether you already own the lot. If you own the land, its value may count toward your equity and reduce the cash needed up front.
Can I use a construction loan to build on my own land?
Yes. If you already own the land, the loan can include the cost of construction only. The value of your lot may count toward your required down payment.
You’ll need to provide a copy of your deed, a title search, and proof that the land is build-ready with access to utilities or appropriate permits.
When do I start making payments on my construction loan?
You begin making payments as soon as the first draw is issued. These are interest-only payments based on the amount drawn, not the full loan.
Once construction is complete and your loan converts to a permanent mortgage, full principal and interest payments begin based on your final loan amount and terms.
What credit score is needed for a home construction loan?
Most lenders prefer a credit score of 680 or higher for construction loans. A stronger score gives you more financing options and can lead to better rates. FSB evaluates more than just your score, we also look at your income, debt, assets, and the details of your project to make a lending decision.
What happens when construction is done?
Once the final inspection is complete and all draws have been issued, your loan transitions to a permanent mortgage. This process, called construction-to-perm conversion, doesn’t require a second closing. You’ll lock in your final mortgage rate and begin making full payments, just like a traditional home loan.
How to qualify for construction loan?
To qualify for a construction loan, you’ll need more than just good credit. Lenders want to see a complete plan and confidence in your ability to repay once the home is built. Most require the following:
-
18 years old or older to apply
-
Credit score of at least 680
-
Finalized building plans and budget
-
Signed contract with a licensed builder
-
Proof of income and employment
-
Land ownership or a purchase agreement
-
Minimum 10% down payment or land equity
Some borrowers may qualify with lower scores or less money down, but stronger financials give you more flexibility. A local lender can guide you through exactly what you’ll need for approval.
Ready To Start Planning Your Build?
Whether you are building on land you already own or still working through plans, FSB can help you understand your construction loan options. Contact FSB's Mortgage department at 319-730-6990 or fill out the form below to connect with a local lender.

We’re Iowa’s Faster. Stronger. Better.® community bank—locally owned, family operated, and focused on helping Iowans build the homes they’ve been dreaming about.
With over 90 years of experience serving Eastern Iowa, including the Cedar Rapids, Marion, and Iowa City areas, our team knows what it takes to get a home construction project off the ground here. We work directly with trusted local builders, underwrite loans in-house, and keep communication clear every step of the way.
If you're ready to build, we're ready to help.