Los AngelesThe Los Angeles County Department of Regional Planning relaxed its ADU laws in 2023, per new statewide laws. But keep in mind that planning departments for coastal areas often have separate building requirements, and L.A. is no exception.
Los Angeles ADU Permits and Regulations Resources
email@example.com (213) 974-6411
Max ADU Size
1,200 square feet for a new-construction detached ADU on a property with a single-family residence.
Varies per Title 22.
Primary Residence Setback
For a new-construction detached ADU, 16 feet.
Side and Rear Setback
Each is 4 feet.