Can I put an accessory dwelling unit (secondary unit / in-law apartment) in the lower level of my house?

To initiate the process to create an accessory dwelling unit in a single-family dwelling, the owner will submit plans to the Building Division, complete a Building Permit Application (PDF) and pay plan review fees.

For more information on the requirements, view the basic Accessory Dwelling Unit Requirements (PDF). For residency verification questions, you may contact the Planning Division at 650-991-8033 to speak with a Planner.

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1. Can I put an accessory dwelling unit (secondary unit / in-law apartment) in the lower level of my house?
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