LA County has no countywide BMO like LA City, but Title 22 Chapter 22.110 sets hillside grading and bulk limits, and several Community Standards Districts cap floor area ratio in unincorporated communities like Altadena, La Crescenta-Montrose, and Topanga.
Title 22 (Planning & Zoning) of the LA County Code regulates residential bulk through several pathways rather than one mansionization ordinance. Section 22.110.090 imposes hillside development standards: graduated height limits, ridgeline protection, and grading caps tied to slope. Roughly 20 Community Standards Districts in Title 22 Division 6 add neighborhood-specific FAR caps, lot coverage maximums, and second-story setback rules — Altadena CSD limits FAR to 0.45, La Crescenta-Montrose CSD adds daylight planes, and Topanga CSD restricts mass on visible hillsides. Department of Regional Planning reviews projects; large additions in CSDs need Director's Review or a hearing.
Stop-work orders and permit revocation for exceeding FAR or hillside limits. Title 22.60 administrative penalties run up to $1,000 per day. Illegal grading triggers separate Title 11 civil penalties and restoration orders under Public Works supervision.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Norwalk, CA
Norwalk prohibits storing abandoned, inoperable, or unregistered vehicles on public streets or visible on private property. Vehicles may be tagged and towed ...
Norwalk, CA
Norwalk regulates electric vehicle charging infrastructure for residential and commercial properties. Building codes may require EV-ready parking in new cons...
Norwalk, CA
Norwalk regulates overnight parking on public streets. Many areas restrict parking between certain hours or require permits for overnight street parking.
Norwalk, CA
Norwalk requires pool barriers meeting safety codes to prevent drowning. Fences must be at least 4 to 5 feet tall with self-closing, self-latching gates.
Norwalk, CA
Norwalk requires permits for retaining walls above a certain height, typically 4 feet. Engineering review may be required for taller walls.
Norwalk, CA
Norwalk restricts or prohibits intentional feeding of wildlife including deer, coyotes, and bears. Feeding wildlife creates public safety hazards and nuisanc...
Side-by-side rule comparisons with other cities in Los Angeles County.
See how other cities in Los Angeles County handle anti-mansionization.
See how Norwalk's anti-mansionization rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.