California ADU Code Summary and Los Angeles Specific

The California Accessory Dwelling Units (ADU) code, which came into effect on January 1, 2020, aims to increase the supply of affordable housing by allowing homeowners to build additional dwelling units on their properties. Here are some key points of the code:

1. Definition of ADUs: An ADU is a secondary dwelling unit on a single-family residential lot, with complete independent living facilities for one or more persons, including permanent provisions for living, sleeping, eating, cooking, and sanitation.

2. ADU types: The California ADU code allows for two types of ADUs: Attached ADUs, which are connected to the primary dwelling unit, and Detached ADUs, which are separate structures on the same property.

3. ADU size: Attached ADUs can be up to 50% of the primary dwelling's square footage or 1,200 square feet, whichever is less. Detached ADUs can be up to 1,200 square feet.

4. Setbacks and height: Setbacks and height requirements vary by local zoning ordinances, but generally, ADUs must be located at least 4 feet from the rear and side property lines, and 10 feet from the primary dwelling unit. Detached ADUs cannot be taller than 16 feet.

5. Parking: The California ADU code limits parking requirements for ADUs. For example, if an ADU is located within a half-mile of public transportation, or in a historic district, no additional parking is required.

6. Owner occupancy: California law prohibits local jurisdictions from requiring the property owner to live on the property in either the primary or ADU.

7. Utility connections: ADUs must be connected to the same utilities as the primary dwelling unit, including water, sewer, and electricity.

Overall, the California ADU code aims to encourage the development of more affordable housing units by making it easier for homeowners to build ADUs. However, specific regulations may vary depending on the local jurisdiction, and it's important to consult with local planning and building departments before starting any ADU project.

There are some special requirements for ADUs in Los Angeles that differ from the California ADU code. Here are a few key points to consider:

1. ADU size: The maximum size for an ADU in Los Angeles depends on whether it is attached or detached. Attached ADUs can be up to 50% of the existing primary dwelling or a maximum of 1,200 square feet, while detached ADUs can be up to 1,200 square feet.

2. Setbacks and height: In Los Angeles, ADUs must meet specific setback and height requirements. For example, detached ADUs must be located at least 5 feet from the rear and side property lines, while attached ADUs can be built up to the property line. The height of a detached ADU cannot exceed 15 feet, while the height of an attached ADU cannot exceed the height of the primary dwelling.

3. Owner occupancy: In Los Angeles, the owner of the property must live on-site in either the primary dwelling or the ADU. This requirement is known as owner occupancy and differs from the California ADU code, which does not require owner occupancy.

4. Parking: In Los Angeles, ADUs require one off-street parking space per unit, but this requirement can be waived if the ADU is located within a half-mile of public transit, or if the ADU is located in a historic district or a neighborhood that is subject to on-street parking restrictions.

5. Design and permitting: Los Angeles has specific design and permitting requirements for ADUs. For example, ADUs in Los Angeles must have separate entrances and be equipped with separate kitchens and bathrooms. Additionally, ADUs in Los Angeles must be permitted by the Department of Building and Safety and meet all applicable building codes.

It's important to note that these requirements may be subject to change, and it's always best to consult with the Los Angeles Department of Building and Safety or a qualified professional before starting an ADU project.

In the context of accessory dwelling units (ADUs), a separate kitchen typically refers to a self-contained area in the unit that is used for cooking and food preparation.

The California Building Code defines a kitchen as "an area used, or intended to be used, for cooking or preparation of food." Therefore, a separate kitchen in an ADU should have the necessary equipment and features to allow for cooking, such as a sink, counter space, stove or range, and a refrigerator.

In Los Angeles, as in many other jurisdictions, a separate kitchen is required for an ADU to be considered a complete living unit, separate from the primary dwelling unit. A separate kitchen typically means that the ADU must have its own kitchen sink, cooking appliance, and refrigerator, and may require separate electrical, plumbing, and ventilation systems.

It's important to note that the requirements for a separate kitchen may vary by jurisdiction and building code. Therefore, it's important to check with your local building department or a qualified professional to ensure that your ADU meets all applicable requirements.

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