Overview
On March 11, 2025, the Board of Supervisors adopted the West San Gabriel Valley Area Plan Project. The Project included an amendment to the General Plan to establish the West San Gabriel Valley Area Plan (WSGVAP), land use and zoning changes, and Title 22 (Planning and Zoning) amendments. These changes were effective immediately, with the exception of the Title 22 (Planning and Zoning) Amendments which took effect on April 11, 2025.
The WSGVAP is a long-range planning and policy document for 9 unincorporated communities of Altadena, East Pasadena-East San Gabriel, Kinneloa Mesa, La Crescenta-Montrose, San Pasqual, South Monrovia Islands, South San Gabriel, South El Monte Island, and Whittier Narrows. The WSGVAP guides long-term growth of the area through development of a guiding vision, goals, policies, and implementation actions for the unincorporated communities in the West San Gabriel Valley. It supports principles such as walkability, connectivity, and community vibrancy. This project includes a comprehensive land-use analysis of the unincorporated areas. Additionally, development of the Plan involved consistent outreach and collaboration with stakeholders. These stakeholders include community residents, local businesses, community-based organizations, external public agencies, surrounding jurisdictions, and other County departments.
Resources
The availability of GIS technology allows the development of parcelized and digitized maps. This project page includes maps and documents that illustrate where the zoning and land use policy changed with sufficient detail that includes parcel outlines and street names. The GIS data that depict the previous versions of zoning and land use policy as well as specific change areas from this area plan update will be maintained in LA County Planning’s internal databases. The live GIS data layers for zoning and land use policy resulting from this area plan update (and any future zone changes and/or plan amendments) can be found on LA County’s Open Data Hub here: https://egis-lacounty.hub.arcgis.com.
Altadena Specific Area Plan Information
WSGV Area Plan Office Hours
Have questions about the West San Gabriel valley Area Plan? Join us each week for Virtual Office Hours. You will be able to speak with a Planner, ask questions, and learn more about the West San Gabriel Valley Area Plan.
Starting on Tuesday, April 16th, 2024, join us each week for Virtual Office Hours, every Tuesday from 12:00 PM to 1:00 PM. Office Hours are not available during County Holidays. Visit this link to learn more and to join Office Hours: WSGVAP Office Hours.
To join Office Hours via phone please call (323) 776-6996 and enter code 668 871 102# and you will be connected to a planner.
