Construction Finance Guide

How Does a Construction Loan Work?

The complete guide to construction financing — from draw schedules and interest-only payments to one-time close loans and qualification requirements.

Last Updated: February 18, 2026 • By PayoffCalculators Editorial Team

Quick Answer

A construction loan is a short-term loan that finances building a home in stages. The lender releases funds through a "draw schedule" as construction milestones are completed. You make interest-only payments on the amount drawn during the building phase (12-18 months). When construction finishes, the loan converts to a permanent mortgage (one-time close) or you refinance into a new mortgage (two-time close). Most require 20-25% down, though FHA options start at 3.5%.

What Is a Construction Loan?

A construction loan is a specialized short-term financing product designed to fund the building of a new home or major renovation project. Unlike a traditional mortgage where you receive the full loan amount at closing, construction loans disburse funds incrementally as your project reaches predefined milestones.

Construction loans are considered higher-risk by lenders because the collateral (the home) doesn't exist yet. This is why they come with stricter qualification requirements, higher interest rates, and more oversight than standard home loans. According to the Federal Reserve, construction lending represents a small but important segment of residential financing.

Phase 1: Construction

  • Duration: 12-18 months
  • Interest-only payments on drawn amount
  • Funds released in 5-7 draws
  • Lender inspections before each draw

Phase 2: Permanent

  • Duration: 15-30 years
  • Principal + interest payments
  • Fixed or adjustable rate
  • Standard mortgage terms apply

Use our Construction Loan Calculator to estimate your monthly payments during both the construction and permanent phases, including draw schedule projections.

One-Time Close vs. Two-Time Close Construction Loans

The biggest decision in construction financing is choosing between a one-time close (single-close) loan and a two-time close (two-close) loan. Each has distinct advantages depending on your financial situation, risk tolerance, and the current interest rate environment.

FeatureOne-Time CloseTwo-Time Close
Number of Closings12 (construction + permanent)
Closing CostsPaid once ($3K-$6K saved)Paid twice
Rate LockLocked at initial closingLocked at second closing
Interest Rate RiskProtected from rate increasesExposed to rate changes
Rate ShoppingLocked in — can't shop laterCan shop for best permanent rate
Re-qualificationNo second qualificationMust re-qualify for permanent loan
Construction RateTypically higher (0.25-0.5% premium)May be lower initially
Best ForRising rate environment, simplicityFalling rates, rate shoppers

Which Should You Choose?

Choose one-time close if interest rates are rising or expected to rise, you want predictability and simplicity, or you're concerned about qualifying for a second loan after construction. Most first-time home builders prefer this option.

Choose two-time close if rates are falling and you want to lock in a lower permanent rate later, you want maximum flexibility to shop lenders, or you're confident in your ability to re-qualify. Experienced investors sometimes prefer this approach.

Regardless of which option you choose, compare the total cost — including all closing fees, points, and interest — using our Construction Loan Calculator. You may also want to explore bridge loan options if you need interim financing while selling your current home.

The Construction Draw Schedule Explained

The draw schedule is arguably the most unique aspect of construction loans. Instead of receiving all your money at once, the lender releases funds in stages — called "draws" — as your contractor completes each phase of construction. This protects both you and the lender.

1

Land & Site Prep

10-15%$30K-$45K on $300K loan

Land purchase, clearing, grading, permits

2

Foundation

10-15%$30K-$45K on $300K loan

Excavation, footings, foundation walls, waterproofing

3

Framing

15-20%$45K-$60K on $300K loan

Structure, roof trusses, sheathing, windows, exterior doors

4

Rough Mechanicals

15-20%$45K-$60K on $300K loan

Plumbing, electrical, HVAC rough-in, insulation

5

Drywall & Exterior

10-15%$30K-$45K on $300K loan

Drywall, siding, brick, roofing, exterior paint

6

Interior Finishes

10-15%$30K-$45K on $300K loan

Cabinets, countertops, flooring, trim, paint, fixtures

7

Final Completion

5-10%$15K-$30K on $300K loan

Landscaping, driveway, final inspections, certificate of occupancy

Important: The Inspection Process

Before releasing each draw, your lender sends a third-party inspector (typically costing $100-$150 per visit, charged to you) to verify the work matches the approved plans and specifications. If the inspector finds issues, the draw is held until corrections are made. This process adds 3-7 business days per draw, so factor this into your construction timeline. Keep communication open with your builder to avoid delays.

Your interest payments increase with each draw. For example, on a $300,000 construction loan at 7.5% interest, your monthly interest after the first draw ($45,000) would be about $281, but after all draws are complete, your monthly interest would be approximately $1,875. Plan your budget accordingly — use our Construction Loan Calculator to model these increasing payments.

How Construction Loan Interest-Only Payments Work

During the construction phase, you make interest-only payments on the amount that has been disbursed — not the full loan amount. This is a key advantage because your payments start small and gradually increase as construction progresses. Understanding this helps you budget for the building period.

Example: $300,000 Construction Loan at 7.5% Interest

MonthDraw StageCumulative DrawnMonthly Interest
1-2Land & Site Prep$45,000$281
3-4Foundation$90,000$563
5-7Framing$150,000$938
8-9Rough Mechanicals$210,000$1,313
10-11Drywall & Exterior$255,000$1,594
12-13Interior Finishes$285,000$1,781
14Final Completion$300,000$1,875

Total construction-phase interest: approximately $13,500-$16,000 over 14 months. Source: Federal Reserve average construction loan rates, Feb 2026.

After construction is complete and the loan converts to a permanent mortgage, your payments shift to standard principal and interest. On this $300,000 example at a 6.5% permanent rate over 30 years, your monthly payment would be approximately $1,896. Compare different scenarios with our Loan Payoff Calculator to see how extra payments could save you money.

Keep in mind that if you're still paying rent or a mortgage on your current home during construction, you'll have dual housing costs. This is a common budget oversight. Consider a bridge loan if you need to sell your current home before the new one is ready, or explore hard money loans for short-term gap financing.

How to Qualify for a Construction Loan

Construction loans have stricter requirements than standard mortgages because the lender is financing a project, not an existing asset. Here's what lenders typically require:

Credit Score

680+ (conventional)

FHA construction loans may accept 620+. Higher scores (720+) get the best rates. Check your score using our credit score guide.

Down Payment

20-25% of project cost

Based on appraised value of the completed home. FHA: 3.5%, VA: 0%, USDA: 0% in eligible areas.

Debt-to-Income Ratio

Below 43-45%

Total monthly debt payments (including new mortgage) divided by gross monthly income. Some lenders want 36% or below.

Cash Reserves

6-12 months of payments

Lenders want to see reserves covering both construction interest payments and your current housing costs during the build.

Documentation You'll Need

Financial Documents

  • 2 years of tax returns
  • Recent pay stubs (30-60 days)
  • Bank statements (2-3 months)
  • Investment/retirement account statements
  • Proof of down payment funds

Construction Documents

  • Builder contract with detailed specs
  • Architectural plans and blueprints
  • Detailed construction budget
  • Builder's license, insurance, and references
  • Construction timeline / draw schedule

Your builder matters as much as your finances. Lenders evaluate the builder's track record, financial stability, licensing, and insurance. Most require at least 2-3 years of experience and several completed projects. If your builder doesn't meet the lender's requirements, the loan will be denied regardless of your financial qualifications. Learn more about your credit needs in our credit score guide — the same principles apply to construction loan qualification.

5 Types of Construction Loans

Not all construction loans are created equal. The right type depends on your project, credit profile, and eligibility for government-backed programs.

1

Conventional Construction Loan

Most Common

Offered by banks and credit unions, conventional construction loans follow standard underwriting guidelines. Available in both one-time close and two-time close options.

20-25% down680+ creditCustom & spec homes
2

FHA Construction Loan (One-Time Close)

Low Down Payment

Backed by the Federal Housing Administration, these loans allow lower down payments and credit scores. The FHA one-time close program is especially popular with first-time home builders.

3.5% down620+ creditOne-time close onlyRequires MIP
3

VA Construction Loan

Veterans Only — Zero Down

Available to eligible veterans, active-duty service members, and surviving spouses. The VA construction loan offers the most favorable terms but can be harder to find lenders that offer this program.

0% downNo PMICompetitive ratesVA funding fee applies
4

USDA Construction Loan

Rural Areas — Zero Down

For building in USDA-eligible rural areas, this program offers zero-down financing. Income limits apply — generally capped at 115% of area median income.

0% down640+ credit (preferred)Rural areas onlyIncome limits apply
5

Owner-Builder Construction Loan

Experienced Builders Only

For borrowers who want to act as their own general contractor. These loans have the strictest requirements because the lender's risk is significantly higher without a professional builder.

25-30% down720+ credit (typical)Must prove experienceHigher rates (+0.5-1%)

Government-backed options (FHA, VA, USDA) can dramatically lower your upfront costs. However, they come with additional requirements including mandatory mortgage insurance, property condition standards, and approved builder lists. For a quick comparison of monthly costs, run different scenarios in our Construction Loan Calculator.

7 Common Construction Loan Mistakes to Avoid

Construction loans are more complex than standard mortgages. These are the most common mistakes that lead to budget overruns, delays, and financial stress.

1. Underestimating the Total Budget

The loan amount is just part of the cost. Budget for land, permits ($500-$5,000), utility connections ($5,000-$30,000), landscaping, and a 10-15% contingency for unexpected issues. Many first-time builders underestimate by 15-20%.

2. Skipping the Contingency Fund

Material prices fluctuate, weather causes delays, and change orders are almost inevitable. Without a 10-15% contingency buffer ($30K-$45K on a $300K build), you risk running out of funds before the project is complete.

3. Choosing a Builder Based Only on Price

The cheapest bid often leads to cost overruns, delays, and quality issues. Check references, verify licensing and insurance, review their warranty policy, and visit their completed projects. Your lender will vet them too.

4. Not Locking in Material Costs

Lumber, steel, and concrete prices can swing 10-30% in months. Get fixed-price contracts with material specifications. If your contract says "or equivalent," the builder may substitute cheaper materials.

5. Ignoring Dual Housing Costs

If you're paying rent or a mortgage while building, you'll have 12-18 months of double payments. Budget for this or time your sale/move carefully. A bridge loan may help — calculate options with our bridge loan calculator.

6. Making Expensive Change Orders

Every change during construction costs more than if you'd included it in the original plan. Moving a wall might cost $500 in planning but $5,000 during framing. Finalize your design before breaking ground.

7. Forgetting About Rate Lock Expiration

Rate locks on one-time close loans typically last 12-18 months. If construction delays push past your lock period, you may face the current (potentially higher) rate or pay for a rate lock extension. Build timeline buffers into your planning.

Many of these mistakes relate to underestimating costs. Before committing, run realistic numbers through our Construction Loan Calculator and read our guide on how to reduce your total loan cost for strategies that apply to construction financing.

The Construction Loan Process: Step by Step

From initial planning to moving in, here's the complete timeline for getting a construction loan and building your home.

1

Get Pre-Approved

2-4 weeks

Submit financials to 2-3 lenders. Get pre-approval letters showing your maximum construction loan amount.

2

Select Your Builder

2-8 weeks

Interview builders, check references, verify licensing. Your lender must approve the builder before closing.

3

Finalize Plans & Budget

4-12 weeks

Complete architectural plans, get permits, and create a detailed budget with your builder. Include 10-15% contingency.

4

Appraisal & Underwriting

3-6 weeks

Lender orders an appraisal based on plans and comparable homes. Underwriters review all documentation.

5

Close the Loan

1-2 weeks

Sign closing documents, pay closing costs and down payment. For one-time close, this is your only closing.

6

Construction Begins

12-18 months

Builder breaks ground. Draws are released per schedule. You make interest-only payments on drawn amounts.

7

Final Inspection & CO

2-4 weeks

Final lender inspection + municipal inspections. Certificate of Occupancy (CO) issued when approved.

8

Loan Conversion / Refi

2-4 weeks

One-time close: automatic conversion. Two-time close: close on permanent mortgage. Regular payments begin.

Total Timeline: 6-18 Months (Pre-Construction) + 12-18 Months (Building)

The entire process from initial planning to move-in typically takes 18-36 months. The pre-construction phase (steps 1-5) often takes longer than expected, so start planning early. During this time, continue building your savings — every additional dollar reduces your loan amount and prevents your total loan balance from growing unnecessarily.

Construction Loan Rates and Current Market (2026)

Construction loan interest rates are typically 0.5-1.5% higher than conventional mortgage rates due to the additional risk lenders assume. As of February 2026, here's what to expect:

Loan TypeConstruction RatePermanent RateDown Payment
Conventional7.0-8.5%6.5-7.5%20-25%
FHA One-Time Close6.5-7.5%6.0-7.0%3.5%
VA Construction6.0-7.0%5.5-6.5%0%
USDA Construction6.0-7.0%5.5-6.5%0%

Source: Federal Reserve Economic Data (FRED), Feb 2026. Rates vary by lender, credit score, and location. Get personalized quotes from multiple lenders.

Rates fluctuate based on Federal Reserve policy and market conditions. Learn how rate changes affect your costs in our guide: How to Reduce Your Total Loan Cost. For auto loans and other financing needs during your building project, explore our Auto Loan Refinance Calculator to free up cash flow, or consider strategies from our student loan refinance guide if you're carrying education debt.

Frequently Asked Questions

Written by

PayoffCalculators Editorial Team

Our editorial team specializes in construction financing, home building, and mortgage strategies. All content is researched, written, and reviewed to provide accurate, actionable guidance.

Reviewed by Licensed Mortgage Professional

Disclaimer: This guide is for educational purposes only and does not constitute financial advice. Construction loan terms, rates, and requirements vary by lender, location, and individual circumstances. All rates and figures cited are estimates based on publicly available data from the Federal Reserve and industry sources as of February 2026 and may not reflect current market conditions. Consult with a licensed mortgage professional before making any construction financing decisions. PayoffCalculators.org is not a lender and does not originate loans. See our full disclaimer for more information.