Accessory Dwelling Units (ADUs) / Secondary Units

Accessory Dwelling Units (ADUs) — also known as Secondary Units — are attached or detached accessory dwellings that provide independent living for one or more people, including permanent facilities for living, sleeping, eating, cooking, and sanitation. As of January 1, 2020, state and local laws surrounding ADUs have changed to allow for their construction with Single- and Multi-Family dwellings. See below for new applications and how-to guides that reflect the latest requirements.

Public Meetings & Hearings

Sep 15, 2021

September 15, 2021 Planning Commission Meeting

In accordance with the revised Emergency Order No. 3 of the City of Oakland, Planning Commission meetings will be held on a virtual platform. Click here for: Minutes for approval at the September 15, 2021 PC Meeting

All Meetings »

Guides & Reports

Read our report on ADUs in Oakland & check out our guides on how to build or rent one out.

Apply Now

Select from the following to apply for your ADU today!

IMPORTANT METERING UPDATE! Please note that separate utility meters may be required for your ADU as per California Public Utility Code (P.U.Code) Section 780.5. Please read our joint ADU bulletin with PG&E for details.

About

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

To help expand housing options for Oakland residents, the City is streamlining the process for property owners to build Accessory Dwelling Units (ADUs) on their lots. As of January 1, 2020, state and local laws surrounding ADUs have changed.

Here are the new categories of ADUs under California state law:

SINGLE-FAMILY ADUs:

  • JUNIOR ADU (JADU): Involves conversion of space within the building envelope of an existing or proposed Single-Family dwelling, resulting in a living unit of not more than 500 sq. ft., requiring owner-occupancy in the JADU or primary dwelling unit.
  • CATEGORY ONE ADU: Involves either conversion of space within an existing Single-Family Dwelling, or conversion or rebuild of an existing accessory structure; includes no expansion of the existing building envelope other than up to 150 sq. ft. for purposes of accommodating ADU access and egress only.
  • CATEGORY TWO ADU: Involves construction of a new detached or attached structure, including an exterior addition to an existing structure to accommodate the ADU, in conjunction with a proposed or existing Single-Family dwelling.

TWO- OR MULTI-FAMILY ADUs*:

  • CATEGORY ONE ADU: Conversion of existing non-habitable space located within portions of an existing Two-Family Dwelling or Multi-Family Dwelling, such as storage rooms, boiler rooms, passageways, attics, basements or garages
  • CATEGORY TWO ADU: Construction of new detached structure(s) or conversion of existing detached structure(s) on lots with an existing Two-Family or Multi-Family Dwelling

* Change of Occupancy regulations for the California Existing Building Code (CEBC) may apply when adding ADUs.

IMPORTANT METERING UPDATE! Please note that separate utility meters may be required for your ADU as per the latest California Public Utility Code (P.U.Code) Section 780.5. Please read our joint ADU bulletin with PG&E for details.

Please see the Documents section for new ADU applications that conform to the latest legal requirements.

Contact Us

Phone Numbers

Email Address