Renovation ROI Calculator
Return on investment for home renovation.
Calculate ROI on home renovation based on cost and value added. Enter renovation cost and estimated value added to see roi percentage and net gain.
What this tool does
Enter renovation cost and estimated value added. The tool shows ROI percentage and net gain.
Enter Values
Formula Used
Spotted something off?
Calculations, display, or translation — let us know.
Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
25,000 kitchen renovation adding 35,000 value: 40% ROI, 10,000 net gain. Kitchens and bathrooms typically return 60-80% (partial payback). Loft conversions 50-70%. Luxury renovations rarely fully return cost — enjoy the space, don't expect break-even.
Run it with sensible defaults
Using renovation cost of 25,000, estimated value added of 35,000, the calculation works out to 40.00%. Nudge the inputs toward your own situation and the output recalculates instantly. The defaults are meant as a starting point, not a recommendation.
The levers in this calculation
The inputs — Renovation Cost and Estimated Value Added — do not pull with equal force. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.
How the math works
Standard ROI formula. The working is transparent — you can verify every step yourself in the formula section below. No black box, no opaque "proprietary model".
What the headline rate hides
Lenders quote a rate; what you pay is a blend of that rate, fees, insurance, and any early-repayment penalty built into the product. The figure here isolates the core interest cost so you can compare like-for-like across deals — then add the other costs separately before signing anything.
What this doesn't capture
The figure excludes arrangement fees, valuation costs, legal fees, insurance, and any early-repayment charges — those can add several thousand to the headline cost. Rate changes at renewal for fixed-term deals will shift the picture further. Use this for the core interest/principal math and add the other costs on top.
Related calculations worth running
Plans get firmer when you triangulate. Alongside this one, the home appreciation calculator, the property investment calculator, and the australian mortgage calculator tend to come up in the same conversations. Running two or three together exposes inconsistencies in any single assumption — which is usually where the useful insight lives.
Renovation ROI produces a return figure based on the inputs provided.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
Standard ROI formula.
References
Frequently Asked Questions
Typical ROI by room?
Over-spec risk?
Planning permission?
Time to sell matters?
Related Calculators
Home Appreciation Calculator
Calculate future home value based on purchase price and annual appreciation rate. Enter years to see projected future value and total appreciation.
Property Investment Calculator
Calculate property investment ROI from price, deposit, rent, expenses, appreciation, and years. Enter property price and see the result instantly.
More Mortgage Calculators
Mortgage
15 vs 30 Year Mortgage Calculator
Compare 15-year versus 30-year mortgage showing interest savings and monthly payment difference. Enter loan amount and 15-year rate for an instant result.
Mortgage
Adjustable Rate Mortgage Calculator
Calculate ARM initial and reset payments. See the payment increase when the fixed period ends. Enter loan amount and initial rate for an instant result.
Mortgage
ARM vs Fixed Rate Mortgage Calculator
Compare ARM initial payment vs fixed-rate mortgage. See 5-year initial savings and the rate gap. Enter loan amount and arm initial rate for an instant result.
Mortgage
Balloon Mortgage Calculator
Calculate balloon mortgage payment due. See monthly payment, total paid before balloon, and final lump sum. Enter loan amount and see the result instantly.
Mortgage
Biweekly Mortgage Payoff Calculator
Calculate years saved by switching to biweekly mortgage payments. See total interest saved. Enter mortgage balance and interest rate for an instant result.
Mortgage
Blended Rate Mortgage Calculator
Calculate the blended (weighted-average) interest rate across two mortgage loans of different balances and rates. Free and educational.
Explore Other Financial Tools
Financial Health
Teachable Revenue Calculator
Calculate Teachable course net revenue from students, price, fee %, and plan cost. Enter students monthly and course price for an instant result.
Budget
Gift Giving Annual Jar Calculator
Work out monthly contributions to a gift jar that covers all your annual present spending. Enter christmas recipients to see monthly amount to set aside.
Major Purchases
Double Glazing ROI Calculator
Calculate double glazing payback time and lifetime net benefit including property value uplift from installation cost and heating savings.