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Investing & Building

Renovation Loan Calculator

Model project cost, as-completed value, and the resulting payment.

What this calculator helps you estimate

This calculator estimates the total cost of a purchase or refinance renovation project, the loan amount that as-completed value could support, the contribution that may be required, and the resulting monthly payment.

Renovation loans combine property financing with improvement costs and are underwritten against an appraisal based on the completed project. Because the appraiser does not credit renovation spending dollar for dollar, the relationship between budget and completed value is the figure worth testing first.

Inputs

Project details

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$
$

Design, permits, consultant, inspection, and similar non-construction costs where eligible.

%

An illustration you control. Required contingency varies by program, property age, and scope.

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$

Your estimate only. The lender relies on an appraisal subject to completion.

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%

Not a published maximum. Limits vary by program, occupancy, property type, and investor.

%
$

Enter a figure only if the home may be uninhabitable during the work.

Results

Project summary

Estimated principal and interest payment$3,183.47
Total project cost$538,500
Improvement cost with contingency$102,500
Contingency amount$8,500
Loan amount modeled$478,500
As-completed loan-to-value83.2%
Estimated borrower contribution$60,000
Projected shortfall$0
Temporary housing during the project$0

Interpretation

The loan amount modeled above is the smaller of the financing requested and the amount produced by the as-completed loan-to-value figure you entered. A projected shortfall means additional borrower funds, a reduced scope, or a different financing structure would need to be considered.

The as-completed value you entered exceeds the acquisition or payoff amount plus the improvement budget. Appraisers do not credit renovation spending dollar for dollar, so treat that difference as an assumption to test rather than expected equity.

Understand the math

How this calculator works

Renovation loans finance the purchase (or refinance) and the improvement budget together, underwritten against the property's value once work is finished. This calculator estimates total project cost, the loan that as-completed value can support, and any contribution you may need to bring.

Worked example

$250,000 purchase price, $60,000 renovation budget, 10% contingency, $330,000 appraised as-completed value, 95% maximum loan-to-value.

  1. Contingency = $60,000 × 10% = $6,000
  2. Total project cost = $250,000 + $60,000 + $6,000 = $316,000
  3. Maximum loan at 95% of as-completed value = $330,000 × 95% = $313,500
  4. Required contribution = $316,000 − $313,500 = $2,500

Maximum supportable loan ≈ $313,500; estimated required contribution ≈ $2,500.

How to read your results

Interpretation guidance

  • As-completed value, not the purchase price plus budget, is what the loan is actually sized against.
  • A contingency reserve absorbs unexpected costs discovered mid-project — most programs expect one, even if the percentage varies.
  • If the required loan exceeds what as-completed value supports, you'll need a larger down payment or a smaller scope of work.
  • Draw procedures and contractor vetting requirements differ by lender — confirm them before finalizing a renovation budget.

Deeper answers

More questions about this calculator

What is as-completed value?

As-completed value is the appraised value of the property assuming the described work is finished as specified. It is an opinion of value, not a guarantee, and may be lower than the purchase price plus the renovation budget.

Why does the calculator include a contingency?

Renovation projects frequently uncover conditions that weren't visible during inspection. A contingency reserve sets aside money in the budget for those conditions; whether one is required varies by program and property.

Is the result an approval?

No. This is an educational estimate based only on the figures you enter. Eligible improvements, loan-to-value limits, and draw procedures vary by lender, program, and property.

Can I choose my own contractor?

Often yes, but the contractor generally needs to meet the lender's licensing, insurance, and approval standards before draws are released.

Disclosure

Results are estimates for educational purposes only and are not a commitment to lend, loan approval, or official Loan Estimate. Actual rates, payments, costs, taxes, insurance, mortgage insurance, eligibility, and loan terms may vary.

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Answers

Frequently asked questions

What is as-completed value?

As-completed value is the appraised value of the property assuming the described work is finished as specified. The appraiser reviews the plans, scope of work, and contractor bid, then values the property subject to completion. It is an opinion of value, not a guarantee, and it may be lower than the purchase price plus the renovation budget.

Why does the calculator include a contingency?

Renovation projects frequently uncover conditions that were not visible during inspection. A contingency reserve is money set aside inside the project budget for those conditions. Whether one is required, and how it is sized, varies by program, property age, and scope. The percentage here is an illustration you control.

Is the result an approval?

No. This is an educational estimate based only on the figures you enter. Eligible improvements, loan-to-value limits, contingency requirements, contractor review, and draw procedures vary by lender, investor, program, property, and borrower.

Next step

Numbers are helpful. A personalized strategy is better.

Review your scenario with a Vabasso mortgage expert. No pressure, no obligation — just clear guidance for your next move.