ADU ROI Calculator
Backyard unit economics: build cost vs rent, yield-on-cost, property-value lift and payback period.
Formula
ADUs win where rents are high and land is pre-paid — the marginal unit needs no land purchase. Risks: appraisers credit less than cost in low-rent areas, and financing is clumsy (HELOC/renovation loans). California-style state laws overriding local zoning have made the permit path far more predictable.
Not financial advice — for informational and analytical use only. Verify all figures with a qualified professional before acting on them.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Need adu roi calculator results fast? Analysts, founders, traders and finance professionals use the ADU ROI Calculator to skip the spreadsheet and get a defensible answer in one step — free, private and instant.
About ADU ROI Calculator
Backyard unit economics: build cost vs rent, yield-on-cost, property-value lift and payback period. ADUs win where rents are high and land is pre-paid — the marginal unit needs no land purchase. Risks: appraisers credit less than cost in low-rent areas, and financing is clumsy (HELOC/renovation loans). California-style state laws overriding local zoning have made the permit path far more predictable. The governing relationship is YoC = annual NOI / build cost. The ADU ROI Calculator computes entirely in your browser — free, private (your figures never leave your device) and instant, recalculating live as you change any input.
How to use ADU ROI Calculator
- 1Enter ADU build cost (currency), Expected monthly rent (currency), Operating costs (% of rent), Property value lift (% of build cost) into the ADU ROI Calculator.
- 2The result is computed automatically using YoC = annual NOI / build cost — there is no button to press.
- 3Change any input to model a different scenario, then copy or share the result.
Why use ADU ROI Calculator?
- ✓Computes adu roi calculator instantly with the correct formula — no spreadsheet needed
- ✓100% free and unlimited, with no sign-up, login or paywall
- ✓Runs entirely in your browser, so the figures you enter stay private
- ✓Shows the formula, a live worked example and references so you can defend the number
Frequently asked questions
What is the formula behind the ADU ROI Calculator?+
ADU ROI Calculator uses YoC = annual NOI / build cost. ADUs win where rents are high and land is pre-paid — the marginal unit needs no land purchase. The tool substitutes your actual inputs into this relationship and shows the worked example step by step.
What inputs does the ADU ROI Calculator need?+
Enter ADU build cost (currency), Expected monthly rent (currency), Operating costs (% of rent), Property value lift (% of build cost) and the result updates immediately — there is no button to press. Change any value to model a different scenario in real time.
Is the ADU ROI Calculator free, and is my data private?+
Yes — it is completely free with no sign-up or usage limit, and it runs entirely in your browser, so the numbers you enter are never uploaded or stored on any server. It is for informational and analytical use, not financial advice.
What should I watch out for when using the ADU ROI Calculator?+
Risks: appraisers credit less than cost in low-rent areas, and financing is clumsy (HELOC/renovation loans). California-style state laws overriding local zoning have made the permit path far more predictable.
What is the ADU ROI Calculator based on?+
The method follows authoritative sources: California ADU law; UC Berkeley ADU cost studies. The formula and references are shown on the page so you can verify and cite the result.
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