ROI on Renovation Calculator

ROI = (post-value − pre-value − reno cost) / reno cost. Factor in regional appreciation to separate true ROI from market gains.

Inputs

Subtracted to isolate reno-driven ROI.

Result

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How to use this calculator

  • Enter pre-renovation appraised value.
  • Enter total reno spend.
  • Enter post-reno appraisal and months between.
  • Enter your area's appreciation rate (Zillow, FHFA HPI).

About this calculator

A renovation only earns ROI on the lift it creates beyond what the market would have given anyway. A 4% local appreciation rate over 6 months adds ~2% to home value with zero work, so naively comparing pre and post values overstates the project. This calculator subtracts that drift to show whether the reno itself paid back. Most kitchens and baths recoup 60-80% of cost; rare projects (curb-appeal upgrades, garage door swaps) approach 100%.

Frequently asked

Why subtract regional appreciation?+
Without it, you credit the renovation for gains the market would have produced anyway. Honest ROI isolates the reno effect.
What's a good reno ROI?+
Most kitchen/bath projects sit at −20% to 0% ROI (recoup 60-80% of cost). Curb-appeal projects, garage doors, and minor exterior work often beat 0%.
Where do I find regional appreciation?+
Zillow ZHVI, FHFA HPI by metro, or Redfin. Use the 1-year change for short reno timelines; 5-year for big projects.
What if I won't sell?+
ROI matters less — value is enjoyment + future option. Use this to sanity-check whether you're building "use" value or burning cash.
Should I include holding costs?+
For short projects (<6 months), no. For multi-year additions, add interest, taxes, and insurance during construction to reno cost.

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