Detached ADU

A Detached Accessory Dwelling Unit (ADU), often referred to as a granny flat, backyard cottage, or in-law suite, is a secondary housing unit that exists on the same lot as a primary residential structure. In Los Angeles, as in the rest of California, ADUs have become increasingly popular as a solution to the housing shortage in many parts of the state.

Detached ADUs are stand-alone structures, separate from the primary dwelling. They are self-contained units with their own living spaces, including a kitchen, bathroom, and sleeping area. They can be used for a variety of purposes such as housing for family members, rental housing, or a home office.

Requirements for building a detached ADU, are as follows:

• Zoning: The lot must be zoned for residential use. Some specific types of zones might have different rules.
• Lot Size: There is generally no minimum lot size for ADUs, but the unit must meet other spatial requirements such as setbacks.
• Setbacks: Setbacks refer to the distance a structure must be from the property lines. For ADUs, there is usually a requirement of a 4-foot setback from the side and rear property lines.
• Size: The maximum size for a detached ADU is typically up to 1,200 square feet or 50% of the existing primary dwelling, whichever is smaller. However, the specific maximum size can vary based on local rules and the specifics of the lot and existing dwelling.
• Height: Detached ADUs typically must not exceed 16 feet in height.
• Parking: No additional parking is required for the ADU if it is located within a half-mile of public transit. In other cases, one parking space may be required, and it could be provided as tandem parking on an existing driveway, in setback areas, or through other means that do not involve creating a new or separate parking area.
• Owner Occupancy: There is no owner-occupancy requirement, meaning the owner is not required to live in either the ADU or the primary dwelling.
• Utilities: The ADU must have necessary utilities. They can either be shared with the main house or separate, depending on local regulations and the preferences of the owner.
• Building Code Compliance: The ADU must meet local and state building codes. This includes safety, construction quality, and environmental regulations.

These requirements are subject to change, and can also vary based on specific situations and locations. It's essential to consult with local planning officials or a planning professional to get the most accurate and up-to-date information.