These districts were established when zoning was created for Los Angeles County many years ago. It was a way to break the county up into distinct areas, smaller units, for easier record keeping and organization. It is still in use to identify and keep track of those ordinances and for running queries against permits and ordinances. For a list of zoned districts or for other information on these districts, please refer to County Code 22.16 Zoned Districts and Maps. Updated 12/1/16 for a major annexation to Santa Clarita that went into effect on 11/15/16, and for slight changes in overall city/community boundaries.

An airport influence area is the area which current or future airport-related noise, over flight, safety, and/or airspace protection factors may significantly affect land uses or necessitate restrictions on those uses. It includes airport owned property, Runway Protection Zones (RPZ), inner & outer safety zones and Community Noise Equivalent Level (CNEL) contours.

Airports within the County are under the jurisdiction of the Airport Land Use Commission (ALUC). The ALUC is required to prepare and adopt a Comprehensive Land Use Plan (CLUP), review and make recommendations concerning certain projects within the ALUC planning boundaries, and review and make recommendations on regulations of local agencies. Though given the authority to review and make recommendations, the ALUC does not have jurisdiction over airport operations.

State Law requires the creation of Airport Land Use Commissions (ALUCs) to coordinate planning for the areas surrounding public use airports. In Los Angeles County the Regional Planning Commission has the responsibility for acting as the Airport Land Use Commission (ALUC) and for coordinating the airport planning of public agencies within the county.

The community standards districts are established as supplemental districts to provide a means of implementing special development standards contained in adopted neighborhood, community, area, specific and local coastal plans within the unincorporated areas of Los Angeles County, or to provide a means of addressing special problems which are unique to certain geographic areas within the unincorporated areas of Los Angeles County. These are the boundaries for the 'Area Specific Standards' within CSDs. Examples include Union Pacific in East Los Angeles and Lake Avenue in Altadena.

This is a seperate zoning layer from the rest of the county as it has different categories. Santa Catalina Island falls under a specific plan (22.46.050 et.al.), which designates land use districts for the unincorporated area of the island. These land use districts serve the same role as zones, but supersede the basic zones in Title 22. This has been in effect as of the adoption of the Santa Catalina Island Specific Plan in 1989.

The Master Plan of Highways was originally developed by the County of Los Angeles Department of Public Works (DPW); it designates roadways in Los Angeles County by their planned capacity. Categories include major highway, secondary highway, limited secondary highway, parkway and expressway. Last updated, 8/15/12 for a Board adopted change in Agua Dulce.

This is zoning for the unincorporated areas of Los Angeles County. This shows zoning how it is shaded on traditional zoning maps (red = commercial, green = open space, etc.)

For more complete information, see Title 22 (Planning and Zoning) of the Los Angeles County Code, or stop by the office of the Los Angeles County Department of Regional Planning, Room 1360 Hall of Records, 320 W. Temple St., Los Angeles, CA 90012. Phone: (213) 974-6411. (Note: Citations which follow refer to sections within the Zoning Ordinance). LAST UPDATED 12/31/14 for zone changes in South Whittier, East Los Angeles, and an annexation in Santa Clarita Valley. PLEASE NOTE, Santa Catalina Island is not included in this dataset. It is in a separate data layer since Catalina has specific zoning categories that differ from the Countywide zoning categories found in Title 22.

This layer delineates ridgelines within selected CSDs whereupon restrictions are established for grading and ridgeline development. Last updated 10/29/14 for updated Significant Ridgelines in newly certified Santa Monica Mountains Coastal Plan. This data is for UNINCORPORATED AREAS only.

This table/chart is a sum of the number of permits, by permit type; for permits in UNINCORPORATED AREAS managed by the Dept. of Regional Planning. Permit type codes are explained in the attached spreadsheet.

This is from the Case Information layer also provided on this site. It shows the extent of past and currently pending permit cases (e.g., CUPs, yard modifications, plot plan reviews, environmental assessments, etc). These cases were drawn from the legacy CTRACK database, and are updated on a monthly basis from the currently active KIVA database. Cases mined from both databases reflect the wide range of land use issues addressed and administered by the LA County Dept of Regional Planning, both past and present. Most cases are parcel-based, although some pertain to subdivisions or other planning boundaries. Note that Notices of Violation (pertaining to Subdivision Map Act Section 66499.36) file numbers are also featured in this layer.

This table (Subdivision Activity) represents land subdivisions in the unincorporated area that are recorded, approved, or pending in the subdivision process. These are Tract Maps (TR) and Parcel Maps (PM).

This layer shows the spatial extent of past and currently pending permit cases (e.g., CUPs, yard modifications, plot plan reviews, environmental assessments, etc). These cases were drawn from the legacy CTRACK database, and are updated on a monthly basis from the currently active KIVA database. Cases mined from both databases reflect the wide range of land use issues addressed and administered by the LA County Dept of Regional Planning, both past and present. Most cases are parcel-based, although some pertain to subdivisions or other planning boundaries. Note that Notices of Violation (pertaining to Subdivision Map Act Section 66499.36) file numbers are also featured in this layer. Cases included through February 2015.