Learn instantly if you can have an ADU on your property
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Step 1
Check if your California property is eligible for an accessory dwelling unit.
Step 2
Explore designs from ADU pros or sketch your own. Find one that works for you and your property.
Step 3
Learn about the cost and next steps for getting your ADU designed, approved, and built.
What’s an ADU?
ADUs are known by many names — including accessory dwelling unit, second unit, in-law unit, granny flat, casita, and backyard home. But, no matter what you call them, these are secondary homes located on the same piece of property as another home.
Why should I build an ADU?
  • Earn extra rental income to help pay your mortgage, save for retirement, or build a financial safety net.
  • Increase your property value.
  • Downsize without moving away from your community.
  • Provide a nearby, yet private, home for family, friends, or caretakers.