Los Angeles County Department of Regional Planning

Accessory Dwelling Units

Accessory Dwelling Units - Ordinance

The County has updated its accessory dwelling unit regulations to comply with state laws that took effect on January 1, 2017. The ADU Ordinance was adopted on April 30, 2019 and took effect on May 30, 2019.

Please note that the County’s ordinance only applies in the unincorporated areas of Los Angeles County.

Title 22 ADU Ordinance

Public Hearings - ADU Ordinance

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Department of Regional Planning
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Los Angeles, CA 90012
T: (213) 974-6411 . F: (213) 626-0434
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