Accessory Dwelling Units
To see if you live in one of the
unincorporated communities where our
fee waiver program
and pre-approved plans may be used, please
click here.
![]() | NEW! Browse Pre-Approved County Standard ADU Building Plans! |
You may want to consider taking advantage of the change in State law which made it easier to add a second house, called an Accessory Dwelling Unit (ADU), to your residential zoned property. | ![]() |
![]() | What is an ADU? An ADU is an additional dwelling unit that could provide affordable housing options for family members, friends, students, the elderly, in-home health care providers, the disabled, and others. |
Where is an ADU allowed?
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![]() | Is a building permit required
for an ADU?
Yes, you will be required to obtain a Building Permit to ensure that the new house meets all the zoning, building, health & safety codes. |
What size ADU is allowed? How big?
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Examples for allowable ADU sizes are provided below:
To find out how your property is zoned (please enter your APN # on the upcoming screen) |