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Real Estate and Lending

Construction Loan Calculator

Estimate construction loan draws, monthly interest, interest reserve, lender fees, cash contribution, loan commitment, LTC, completed-value LTV and permanent mortgage payments.

Construction draw schedule
LTC and LTV analysis
Permanent loan estimate

Construction Project Details

Enter the land, building budget, loan terms, draw method and completed property value.

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Construction interest is estimated on the outstanding balance after each scheduled draw. Actual lenders may use daily interest, inspection dates, retainage and different draw procedures.

Construction Financing Estimate

Review the projected loan commitment, interest, leverage and conversion payment.

Estimated monthly construction payment $0.00 Interest is added to the financed reserve
Projected payoff at completion $0.00 Estimated construction loan balance
Permanent loan payment $0.00 Principal and interest estimate
Base project loan
$0.00
Construction interest
$0.00
Interest reserve
$0.00
Lender points
$0.00
Total lender fees
$0.00
Estimated borrower cash
$0.00
Total project cost $0.00
Contingency amount $0.00
Estimated loan commitment $0.00
Loan-to-cost ratio 0.00%
Completed-value LTV 0.00%
Equity at completion $0.00
Average construction draw $0.00
Average monthly interest $0.00
Peak monthly interest $0.00
First-month interest $0.00
Total financing cost $0.00
Project basis with financing $0.00
The completed property value exceeds the projected construction loan payoff.
Construction delays, change orders, inspections, draw timing and interest-rate changes can increase the final loan balance and required borrower cash.

What Is a Construction Loan?

Understand how lenders release funds in stages while a residential or commercial property is being built.

A construction loan is short-term financing used to pay for land acquisition, labour, materials, permits, contractor invoices and other building expenses.

Instead of releasing the full construction budget at once, lenders commonly provide funds through a series of draws. Each draw may correspond with a completed stage of the project, such as foundation work, framing, roofing or interior completion.

Interest is generally calculated on the outstanding amount already drawn rather than the entire approved commitment. When construction is complete, the balance may be repaid, refinanced or converted into permanent financing.

How to Use the Construction Loan Calculator

Estimate the project funding and draw interest in four straightforward steps.

01

Enter Project Costs

Add the land cost, construction budget and contingency allowance for unexpected expenses.

02

Add Borrower Equity

Enter the cash contribution being applied toward the land and construction expenses.

03

Set Draw and Loan Terms

Choose the construction term, draw profile, interest rate, points and treatment of fees and interest.

04

Review the Financing

Compare the loan commitment, draw interest, LTC, LTV, cash requirement and permanent payment.

Important Construction Loan Metrics

These measurements help explain project leverage, interest exposure and the expected financing position at completion.

Construction Draws

Funds released in stages as work is completed and approved according to the lender's draw process.

Interest Reserve

A financed amount used to cover estimated construction interest instead of requiring monthly borrower payments.

Loan-to-Cost Ratio

The projected construction loan commitment compared with the total land and building project cost.

Completed-Value LTV

The projected payoff balance compared with the estimated market value after construction.

Construction Loan Draw Preview

Review the estimated monthly construction draw, interest charge and outstanding loan balance.

Month Opening Balance Construction Draw Interest Charge Cash Payment Ending Balance

Construction Loan Calculator FAQs

Helpful answers about construction draws, interest reserves, contingencies, LTC and permanent financing.

Construction interest is generally based on the amount already drawn and outstanding. As additional funds are released, the balance and monthly interest charge can increase.
A construction draw is a release of loan funds used to pay eligible building expenses. Lenders may require inspections, invoices, lien waivers or other documents before approving a draw.
An interest reserve is a portion of the financing used to pay construction-period interest. In this calculator, financed interest is added to the outstanding balance.
A contingency allowance provides room for unexpected costs, material price changes, design modifications and other expenses that were not included in the original construction budget.
Loan-to-cost compares the projected financing with the total project cost. Loan-to-value compares the projected payoff balance with the estimated completed property value.
A construction-to-permanent loan is designed to finance construction and then convert into longer-term mortgage financing after the project is completed and applicable conditions are satisfied.
No. The permanent mortgage payment estimate includes principal and interest only. Property taxes, insurance, association dues and other ownership expenses are not included.
No. The results are educational estimates. Approval and final terms depend on lender underwriting, plans, permits, contractor qualifications, appraised value, borrower credit, equity and other requirements.
Important: This construction loan calculator is provided for general informational and planning purposes only. It does not constitute a loan offer, approval, appraisal, financial advice, tax advice, accounting advice or legal advice. Actual results may vary.