Pre-Approved ADU Plans Now Available!
Interested in using our no-cost, "off-the-shelf" ADU building plans? Learn more about our permit-ready ADU plans containing complete sets of construction drawings that conform to the latest codes!
Please review the Permit Requirements below as these vary from project to project.
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All Accessory Dwelling Units (ADUs) require a Design Review Exemption (DRX) Permit from the Planning/Zoning Bureau, along with Building Permits.
Here are the categories of Single-Family ADUs under California state law:
Please note that a Category 1 OR a Category 2 ADU may be combined on the lot with one JADU. However, a lot may NOT contain both a Category 1 ADU and a Category 2 ADU. If a lot contains two ADUs, one must be a JADU.
See below for step-by-step requirements to apply for your ADU permits or review our Guidebook to Single-Family ADUs.
Please note that ADUs that are less than 500 square feet in size are NOT subject to OUSD school impact fees.
Once we receive your application and have created it in our system, we will review your plans. If your plans require corrections or if we need further information, we will contact you. Once you've gone through Steps 1 and 2, we will contact you to issue your permit. Depending on our workload and the complexity of the project, the process may take between 6-8 weeks from the date the City receives a completed application to the date when we issue your permit (subject to time limits set forth in California Government Code 65852.2).
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