ADU CalculatorHow Much Will Your ADU Really Cost?
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What Type of ADU Is Right for You?
Each ADU type has different costs, timelines, and benefits.
Garage Conversion
Turn an existing attached or detached garage into a fully livable unit. The most affordable ADU option, no new foundation required, and permitting is typically faster.
Detached ADU
A brand-new standalone structure built on your property. Offers the most privacy and flexibility, ideal for rental income or multi-generational living.
Junior ADU
A smaller unit (up to 500 sq ft) built within the existing footprint of your home. Low cost, fast to permit, and great for a guest suite or starter rental.
Your Smartest Investment
More space, more income, more value on land you already own.
ADUs consistently deliver some of the highest returns of any home improvement in California
Typical ADU rental income in Los Angeles County
California law allows ADUs on most residential lots, no special permits needed