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Planning Building and Code Enforcement
San Jose Home
Accessory Dwelling Units (ADUs)
ADU Tuesdays

On ADU Tuesdays,
we offer expedited plan review for ADUs!
Secondary units — also called accessory dwelling units, ADUs, or granny flats — are small living units, including a kitchen and bathroom, on a property that has a single-family home. There are many benefits to ADUs, including that they:
  • Create more affordable housing for our community, family members, or disabled persons;
  • Provide an income opportunity for homeowners;    
  • Promote infill development; and
  • Encourage the use of public transportation.

Properties that qualify for an ADU
  • Single-family lots that are 3,000 square feet or larger may qualify.
  • View the ADU Screening Form for rules and answers to common questions.

Are you ready to proceed with an ADU project? View the Permit and Plan Preview Process.

You may also find it helpful to watch our "ADU Permit Video" on our YouTube channel. Our expert planners and inspectors provide tips on how to design a project that complies with the Zoning code and how to avoid common mistakes in the inspection process.