Check your property's zoning, browse designs & get contractor estimates for your ADU project:
City Hint: The City of Stanton permitted a total of 19 ADU projects in the past year of 2020.
Number of ADUs allowed:
Under state law, each single-family home may now construct at least one Accessory Dwelling Unit. Owner occupied single-family properties may construct one Accessory Dwelling Unit and one Junior Accessory Dwelling Unit (JADU). Multi-family properties, per every four existing residential units, may construct one Accessory Dwelling Unit, so long as the existing units were legally established.
Types of ADUs allowed:
Detached ADU, Attached ADU, Junior ADU are approved. ADUs may be new construction or converted from existing space. Junior ADUs must be converted from existing space.
Single family and multi-family residential properties will not be subject to the minimum lot size of the underlying zoning district or by ordinance for ADU projects. ~ Updated: State Law AB-68
Residential properties will be allowed to add up to 850 square feet for a one bed ADU or up to 1,000 square feet for a two bed ADU, regardless of the underlying zoning standards of the property. A Junior Accessort Dwelling Unit (JADU) is allowed up to 500 square feet. According to California Residential Code, the minimum size of any living unit is 150 square feet (including Accessory Dwelling Units and Junior Accessort Dwelling Unit (JADU)s). ~ AB68
The maximum required setback for a detached new construction Accessory Dwelling Unit (ADU) shall be no more than 4 feet from the rear and side property lines. Setbacks will not be required for Accessory Dwelling Unit (ADU)s and Junior Accessory Dwelling Units converted from existing space that was legally eastablished. Attached Accessory Dwelling Unit (ADU)s and conversions from existing space to be expanded will be required to comply with the setbacks of the underlying zone. ~ Updated: State Law AB-68
Properties which convert an existing garage to an Accessory Dwelling Unit (ADU) or Junior Accessort Dwelling Unit (JADU) will not be subject to replacement parking requirements. ~ Updated: State Law AB-68
Accessory dwelling units shall not be required to provide fire sprinklers if they are not required for the primary dwelling.
Shape, materials and style:
An accessory dwelling unit shall be compatible with the design of the primary dwelling unit in terms of height, bulk, architectural character, materials, color, and landscaping treatment. An entrance to an accessory dwelling unit shall not be visible from the public right-of-way.
An accessory dwelling unit shall conform to the height, setback, and lot coverage requirements appropriate to the zone where it is located, except that a detached accessory dwelling unit shall be located only in the rear portion of the lot and shall be screened from the street by the primary dwelling and/or its garage.
No accessory dwelling unit shall be established or maintained until there has been a building permit approved by the City. An accessory dwelling unit within an existing space, including the primary structure, attached or detached garage or other accessory structure shall be permitted with a building permit regardless of all other standards within the chapter if complying with: An accessory dwelling unit shall only be allowed where there is an existing single-family detached dwelling.
Number of Bedrooms:
Not specified by State Standards.
Between between 2020 and 2025, owner occupancy requirements will not apply to new Accessory Dwelling Unit (ADU)s. (applicable to new construction and conversion units) ~ Updated: State Law SB-13
Local health officer approval where a private sewage disposal system is being used, if required. (State requirements)
*** Beginning in 2020, according to state law, all residential zoning districts, including single-family and multi-family, are allowed to build Accessory Dwelling Units. ***
Residential Building Code:
The California Building Code (CBC) 2019 is adopted.
ADU Design Library
Browse hundreds of models to find the right fit for your property.
ADU Model 752 sqft
32 ft x 25 ft
ADU Model 720 sqft
20 ft x 20 ft
ADU Model 768 sqft
32 ft x 24 ft
This estimate is based on recently completed projects in the area and is inclusive of all typical soft costs such as permitting, design and engineering fees.