Free tool City of San Diego

ADU INCOME CALCULATOR

What could a San Diego ADU earn?

Enter your project cost, the rent you expect, a vacancy allowance and your monthly operating costs. See the annual amount left before loan payments, and a simple yield on the cost.

FREE ADU INCOME CALCULATOR

Try the numbers.

Change any number. The results update instantly.

Your assumptionsUse your own numbers.

Enter the total recurring costs you plan to pay each month — for example insurance, maintenance, utilities you cover, management and property tax on the new unit. Include the expenses you want this calculation to count.

First resultBefore loan payments and income tax.
Annual amount before debt$23,100Annual gross rent$30,000After vacancy$28,500Annual operating costs$5,400Simple yield before debt11.6%

These starting numbers are examples, not figures for your property. The result subtracts your vacancy allowance and the monthly operating costs you entered, and adds no other expenses on its own. Loan payments, income tax, changes in property value and sale value are not included.

THE RENT FIGURE

Start from listings, not hope.

Compare three to five current long-term listings near you with the same bedroom count and a similar size. Write down a low, a likely and a high. Enter the likely figure, then try the low one.

How to find a rent you can defend

WHAT IT LEAVES OUT

Loans, taxes and the sale.

The result is operating income before debt. Loan payments, income tax, and what the unit adds to the property's value are separate questions with their own guides.

How could I finance it?Is an ADU worth it?

YOUR PROPERTY IS THE NEXT QUESTION

Check your property for free.

Enter your address for a free Untapped Value Report on what could fit on your lot. No account or phone number needed.

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