State law permits ADUs up to 1,200 sqft for detached units. 5,000–7,000 sqft typical residential lots. La Palma's uniform grid layout means most lots have consistent dimensions and predictable buildable areas. No minimum lot size required by state law to build an ADU.
Up to 16 feet for single-story detached ADUs. Up to 25 feet for two-story ADUs per state law (AB 1332) in qualifying residential zones.
4-foot minimum from rear and side property lines for new detached ADUs. Conversions of existing structures are exempt from setback requirements.
One parking space per ADU may be required. Exempt if within 0.5 miles of public transit, within one block of a car-share vehicle, or if the ADU is a conversion of existing space.
No owner-occupancy requirement for ADUs (made permanent by AB 976 in 2025).
Estimated cost $250K–$375K. Permit fees $5K–$10K. Impact fees: Waived under 750 sqft.
La Palma is one of Orange County's smallest and most tightly knit communities — just 1.8 square miles with approximately 15,000 residents. Despite its compact size, the city maintains an exceptional quality of life with well-kept neighborhoods, Central Park as the community's green heart, the La Palma Community Center, and a strong volunteer-driven civic culture. The residential character is predominantly single-family homes built in the 1960s and 1970s on lots typically ranging from 5,000 to 7,000 sqft. La Palma's location in northwest Orange County provides convenient access to the 5 and 91 freeways, placing residents within a short commute of Anaheim, Buena Park, and Cerritos employment centers. The city's quiet streets, low crime rates, and community-oriented atmosphere make it a hidden gem for families seeking an affordable OC foothold.