Learn instantly if you can have an ADU on your property

Try Symbium Build for Milpitas, to find and sketch ADU designs that fit your property and your needs, connect with ADU professionals, and get your free report with all the information you need to get started.

Toolkit for Accessory Dwelling Units

This workbook was created as a resource to help residents of Milpitas build a second unit. It provides a detailed, step-by-step approach to the entire project—from getting started to assisting homeowners in the process of building a second unit. The workbook was designed to provide useful information and reduce the uncertainty in what can feel like a complicated process.


ADU Mondays

An online appointment platform has been created where you will be able to schedule a virtual meeting with members from Building Safety, Planning, and Land Development to explore the development of an ADU.

Please click below to answer a few brief questions and schedule your ADU Monday appointment.  We look forward to assisting you.

*Please note that this is not an express plan review service. Should you decide to submit a permit application to develop an ADU, City procedures and charges in accordance with the City’s fee schedule will apply.

The Building Safety and Housing Department launched the Accessory Dwelling Unit (ADU) Incentive Program and the Safe ADU Legalization Program which feature the waiver of all City permitting fees for the construction of a new ADU and legalization of a non-permitted ADU or JADU. Sample Template of JADU or ADU Deed Restriction.

If you would like to e-mail your questions regarding ADUs, please send them to To read the full ADU Zoning Ordinance.