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Contact Us
If you have questions about the ADU permitting process, please reach out to our ADU
Ally at the Permit Center:

ADU Ally

Email: adu.ally@sanjoseca.gov
Phone: 408-793-5302

ADU Resources
Building an accessory dwelling unit (ADU) is becoming popular throughout the Bay Area. Here are resources, local and regional, to help you with an ADU project.


ADU Workshops & Financial Assistance - Housing Trust Silicon Valley

Housing Trust Silicon Valley offers free educational workshops as well as financial assistance to Bay Area homeowners who are seeking to build an ADU. The workshops cover all aspects of an ADU project, from design to construction to financing to becoming a landlord. Visit the Housing Trust Silicon Valley's ADU Program website for information.


Cost Advantages of Pre-Approved ADU Designs - San Jose ADU Master Plan Program

In San Jose, one way to lower the overall cost of an ADU is to work with a vendor who offers ADU designs that are pre-approved by the City. Both construction and permitting costs on these units are typically much less than those for a custom-designed ADU. Please see the ADU/Single-Family Master Plan page for more information.