LACO Title 22.110.090 governs Hillside Management Areas in unincorporated LA County, applying a slope-density formula, requiring vegetation protection, and triggering geotechnical review and CEQA evaluation for steep-lot development.
The Hillside Management Area (HMA) regulations under LACO Title 22.110.090 cover unincorporated parcels mapped on the county's hillside layer. Maximum residential density is calculated through a slope-density formula: as average parcel slope increases, the allowed dwelling units per acre drops, with very steep parcels (over 50 percent slope) often limited to one unit per several acres. Significant native vegetation, ridgelines, and prominent landforms are protected. Projects trigger geotechnical and soils reports, grading review, haul-route approval, and CEQA evaluation for slope stability, fire risk, and biological resources. Many hillside parcels also lie inside Very High Fire Hazard Severity Zones, layering Title 32 fire code rules on top.
Unpermitted grading, exceeding density limits, removing protected vegetation, or skipping geotech review triggers stop-work orders, daily fines, and required restoration to pre-violation conditions.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
El Monte, CA
Modified exhaust and loud motor-vehicle noise on El Monte streets are primarily enforced under California Vehicle Code §§27150–27151. Stationary vehicle nois...
El Monte, CA
El Monte has no 'dibs' or space-saving ordinance. The practice originated in snow-belt cities like Chicago and Boston and is not relevant to El Monte's Medit...
El Monte, CA
Chain-link is prohibited for residential uses. Barbed, pointed, spiked, razor, or piercing materials are banned on any fence or wall citywide.
El Monte, CA
Fences and walls in El Monte are regulated under Title 17 (Zoning), with general development standards in Chapter 17.60. Front-yard fences are limited to 42 ...
El Monte, CA
El Monte has no separate hoarding-specific ordinance, but animal hoarding is prosecuted under California Penal Code §597 (animal cruelty/neglect) when the nu...
El Monte, CA
El Monte Municipal Code Title 6 (Animals) restricts livestock in urban residential zones. Animal control is contracted to the Los Angeles County Department o...
Side-by-side rule comparisons with other cities in Los Angeles County.
See how El Monte's hillside overlay rules rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.