Construction loans are different from any other mortgage you've dealt with. The property doesn't exist yet—or exists only as a bare lot—and you're borrowing to build something.
This creates complications that catch people off guard.
How Construction Loans Work
Traditional mortgages are straightforward: you borrow money to buy an existing property. The house is collateral. Done.
Construction loans are phased:
**Construction phase**: You borrow against the future completed value of the home. Money is disbursed in "draws" as construction progresses. You typically pay interest-only on the amount drawn.
**Permanent phase**: After construction completes, you either refinance into a traditional mortgage or the construction loan converts automatically (in a construction-to-permanent loan).
Types of Construction Loans
**Construction-only loan**: Covers only the building phase. When construction completes, you get a separate permanent mortgage. Two closings, two sets of fees, but sometimes better rates.
**Construction-to-permanent (CTP)**: One loan that starts as construction financing and automatically converts to a permanent mortgage when building finishes. One closing, less paperwork, but sometimes slightly higher rates.
**Renovation loans**: FHA 203(k), Fannie Mae HomeStyle, or conventional renovation loans that fund both purchase and rehabilitation of existing properties.
For new construction, most people prefer construction-to-permanent for simplicity.
The Approval Process
Construction loans are harder to get than standard mortgages:
**You need solid credit**: Typically 680+, with 720+ preferred.
**Larger down payments**: Expect 20-25% down. Some lenders require more.
**Detailed plans required**: Complete building plans, specifications, and cost breakdowns reviewed by the lender.
**Approved builder**: Your contractor typically needs lender approval—licensed, insured, experienced, financially stable.
**Cost appraisal**: The lender appraises what the finished home will be worth, not what exists today.
The Draw Process
This is where it gets complicated.
Run the numbers for your situation: Use our free loan amortization calculator to see your exact monthly payment, total interest, and full amortization schedule.
You don't receive the full loan amount upfront. Instead, funds are released in "draws" as construction milestones complete:
1. Foundation complete → First draw 2. Framing complete → Second draw 3. Roofing, plumbing rough → Third draw 4. And so on...
Each draw requires an inspection confirming work completed. This protects the lender but can slow things down if inspections aren't scheduled promptly.
Interest During Construction
During construction, you pay interest only on the amount drawn, not the full loan.
If you've drawn $150,000 of a $400,000 loan at 8%, your monthly interest is roughly $1,000—not the $2,600 it would be on the full amount.
This is helpful, but interest-only payments for 8-12 months still add up.
The Budget Problem
Construction costs have a way of exceeding estimates. Materials cost more than expected. Changes get made. Weather delays add labor costs.
If you're borrowing $400,000 to build a house estimated at $400,000, and actual costs come in at $450,000, you have a problem. The lender won't increase the loan easily. You need that extra $50,000 from somewhere.
Build contingency into your budget—at least 10-15% for overruns. If you don't use it, great. If you do, you're not scrambling.
Finding a Lender
Not all lenders do construction loans. Start with: - Local banks and credit unions (often more flexible) - Builders who have lending relationships - Mortgage brokers who work with construction-loan lenders
Big national lenders often avoid construction loans because they're more complex to underwrite and manage.
Choosing a Builder
Your builder matters enormously. Beyond quality and price:
**Are they lender-approved?** Your lender will vet them. **Are they financially stable?** A builder who goes bankrupt mid-project is a nightmare. **Can you verify references?** Talk to recent clients. **Is the contract clear?** Scope, price, timeline, change-order process—all documented.
A cheap builder who cuts corners or goes bust costs far more than a reliable one.
The Timeline Reality
New construction takes longer than you expect. Plan for 8-14 months, sometimes longer. Weather, permit delays, material shortages, subcontractor scheduling—all add time.
Factor housing costs during construction. Where will you live? Can you stay in your current home until it's done? Budget for rent if needed.
When Construction Loans Make Sense
**You can't find what you want**: In areas with limited inventory or specific needs, building might be the only option.
**You want everything custom**: New construction lets you design exactly what you want.
**New construction is cost-competitive**: In some markets, building costs roughly what buying existing would cost.
**You have time and flexibility**: If you need to move by a specific date, construction's uncertainty is risky.
The Bottom Line
Construction loans are more complex, require more documentation, and carry more risk than traditional mortgages.
But they give you the ability to build exactly what you want where you want it.
If you're considering building, talk to lenders early—before you're deep into plans. Understand the approval requirements, budget adequately, choose your builder carefully, and build in time and cost contingencies.
Building a home is exciting. Construction financing is tedious. Accept both.
