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San Jose Regulation Guide

A guide to learning more about ADU regulation and zoning in San Jose, CA

We are here to help you with information and knowledge looking for permitting guide to build ADU in San Jose

San Jose regulation guide information

City of San Jose, is the cultural, financial, and political center of Silicon Valley and the largest city in Northern California, by both population and area.

San Jose, CA has one of the best supported ADU programs in the Bay Area. Although each city has its own planning and building department that address questions related to construction and building regulation, San Jose excels with fast-response email service and a comprehensive, yet digestible online resource.

You can visit San Jose’s ADU support page here: or contact their ADU Ally via email or phone at or (408) 793-5302.

City of San José: Building Department Contact Information

Phone Number: (408) 793-5302
Email Address:
General Resource:
Secondary Dwelling Resource:
ADU Application: Download PDF
Location: City of San Jose: Building Division 200 E. Santa Clara St. Tower, 2nd Floor San José, CA 95113


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