Renovation ROI Calculator

How to Calculate Home Improvement ROI

Return on investment (ROI) for home improvements measures how much of your renovation cost you recover through increased home value when you sell. The Cost vs. Value report expresses this as cost recouped = resale value added ÷ project cost × 100. A project pays for itself at resale only when that figure is above 100%. Personal enjoyment and energy savings can add to the return, but they depend on your home and your situation, so the calculator asks you to estimate them yourself.

The project figures in this calculator are national averages from Zonda's 2025 Cost vs. Value Report, published with JLC. In the 2025 national data, cost recouped ranges from 267.7% for a garage door replacement down to 18% for an upscale primary suite addition, and only 5 of the 28 projects recouped more than their cost.

Projects That Recouped the Most in 2025

These projects had the highest national average cost recouped in the 2025 report:

1. Garage door replacement: 267.7% recouped ($4,672 cost, $12,507 resale value).
2. Steel entry door replacement: 216.4% ($2,435 cost, $5,270 resale value).
3. Manufactured stone veneer: 207.9% ($11,702 cost, $24,328 resale value).
4. Fiber-cement siding replacement: 113.7% ($21,485 cost, $24,420 resale value).
5. Minor kitchen remodel (midrange): 112.9% ($28,458 cost, $32,141 resale value).

Factors That Affect Renovation ROI

Several factors influence how much value a renovation adds to your home:

• Local market conditions: the Cost vs. Value report publishes regional tables because results differ by market. A pool adds more appeal in a hot climate than a cold one.
• Over-improvement risk: a common rule of thumb is to be cautious when a single project costs more than about 10% of your home's value, because comparable sales cap what buyers will pay.
• Time before selling: finishes wear and styles date, so a renovation done many years before a sale is likely to add less at resale than a recent one.
• Quality of work: professional installation with permits and documentation is easier for buyers and appraisers to trust than undocumented DIY work.
• Neighborhood comps: your home's value is capped by comparable sales in your area.

Frequently Asked Questions

What home renovation has the highest ROI?

In the 2025 Cost vs. Value national data, garage door replacement recouped the most (267.7% of its cost), followed by steel entry door replacement (216.4%) and manufactured stone veneer (207.9%). Exterior projects dominate the top of the list.

Is a kitchen remodel worth the investment?

It depends on scope. A midrange minor kitchen remodel recouped 112.9% of its $28,458 average cost in the 2025 report, while a midrange major kitchen remodel recouped 50.9% of $82,793 and an upscale major remodel 35.7% of $164,104. Smaller refreshes tend to return more of their cost than full remodels.

How do I avoid over-improving my home?

Research comparable home sales in your neighborhood to understand your home's value ceiling, and be cautious with any single project above roughly 10% of your home's value (a rule of thumb, not a hard limit). Focus on projects that bring your home in line with neighborhood standards rather than exceeding them.

Does documenting renovations affect ROI?

Documentation does not change the national averages, but permits, receipts, contractor details, before and after photos, and warranty information make it easier for buyers, inspectors and appraisers to verify the work you are asking them to pay for.