Accessory Dwelling Unit (ADU)

ADUADU General Information

An Accessory Dwelling Unit (ADU) is an attached or detached residential dwelling unit with complete living facilities (bedroom, kitchen, bathroom, etc.) in zoning districts that allow single-family and multi-family uses.

A Junior Accessory Dwelling Unit (JADU) is a dwelling unit that is no more than 500 square feet in size and contained entirely within an existing or proposed single-family dwelling. The JADU may include separate living facilities, or it may share the facilities with the existing structure. 

ADUs go by many different names, including granny flats, in-law units, backyard cottages, secondary units, and more. The key distinction between an ADU and other types of detached structures, such as pool cabanas, is the inclusion of a kitchen in the ADU.

Current State law regarding Accessory Dwelling Units and Junior Accessory Dwelling Units can be found on the State of California's Legislative Information website. 

City of Ventura ADU Ordinance

On October 23, 2023, the City Council adopted Ordinance No. 2023-09 which contains development standards for the construction of ADUs and JADUs within the City.

CalHFA ADU Grant Program

The CalHFA ADU Grant Program provides up to $40,000 in assistance for pre-development costs and non-reoccurring closing costs. The program is open for new applications beginning Monday, December 11, 2023. Learn more here.


To learn more, visit our frequently asked questions (FAQs) below. 


For assistance, please send us an email or call us at 805-654-7869.

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