Accessory Dwelling Units (ADUs)

Want to expand your home or add a new living space? Accessory Dwelling Units (ADUs) can be a great option! This page will help you understand what ADUs are, the types available, and how to start your project.

What is an ADU?

Oakland ADU photo

An Accessory Dwelling Unit (ADU) is a small, self-contained home on the same property as a Single-Family or Multi-Family residence. ADUs include everything needed for independent living, like a kitchen, bathroom, and sleeping area.

Here in Oakland, ADUs cannot be rented for short-term stays (less than 30 days). ADUs come in different types based on where they are built and how they are constructed. 

Design & Apply for Your ADU

Design Your ADU:

Use Pre-Approved Plans – Faster approval with city-approved designs. 
Modify a Pre-Approved Plan – Customize an existing design. 
Hire a Professional – Work with an architect or contractor experienced with Oakland permits.

California encourages ADU construction, making the permit process faster than most home projects

Your application has two main steps

1. Zoning Approval – Ensures the ADU meets location, size, and height requirements.
2. Building Permit – Verifies that the ADU is built safely and meets Building Codes. 

Follow any of the button links below for details on each type of ADU shown.

About

We’re here to help! Contact us for information on permits, costs, and requirements

Email us for a faster response:

Call us:

  • (510) 238-3891 (Building)
  • (510) 238-3911 (Planning/ Zoning)

Permit Questions Portal

Banner photo credit: Valley Home Development Corp. & Prefab ADU

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