When investors ask about ADU ROI, they're often thinking only about monthly rental income divided by construction cost. That's one input, but it undercounts the real return in most cases.
Rental Income
The most direct return: a permitted ADU can be rented as a long-term or mid-term unit, generating monthly income against your construction investment. This is the number our ADU Cost Estimator is built to help you plan against.
Appraised Value
A legally permitted ADU typically increases a property's appraised value beyond just the construction cost, because appraisers and buyers alike recognize the income-generating potential of a second legal unit.
Refinance and Equity Position
Increased appraised value can support a cash-out refinance, letting investors redeploy equity into their next acquisition — a core mechanic of the BRRRR strategy.
Exit Flexibility
Properties with a permitted ADU appeal to a wider buyer pool at resale, including both owner-occupants seeking rental income and other investors, which can support a faster, more competitive sale.
Build the Full Picture Before You Commit
We scope every ADU project with all four of these return levers in view, not just the monthly rent projection. Learn more on our Investor Services page or schedule a consultation to run the numbers on your specific property.