Boundary of areas considered urban, urban coasta, and rural for planning purposes.

Boundaries of planning zones in San Mateo County. Definitions of specific zoning codes can be found in the County of San Mateo Zoning Regulations document: http://planning.smcgov.org/zoning-other-regulations

Land use type boundaries in San Mateo County. Includes information on landuse density, landuse type, area, and narrative description. This data includes areas in the County's planning jurisdiction. Areas within city jurisdictions are excluded.

Parcels that are regulated under the Williamson Act. The purposes of the Land Conservation Act (Williamson Act) are to preserve the County’s prime soils and intensive high value agricultural operations, and to discourage premature and unnecessary conversion of agricultural land to urban use.

Location of Scenic Corridors in San Mateo County. Scenic Corridors are defined as: public views within and from Scenic Corridors shall be protected and enhanced, and development shall not be allowed to significantly obscure, detract from, or negatively affect the quality of these views. Vegetative screening or setbacks may be used to mitigate such impacts. Development visible from Scenic Corridors shall be so located and designed as to minimize interference with ridgeline silhouettes.

Boundaries for State (SRA) and Local (LRA) Responsibility Areas for fire protection. Includes hazard classification and hazard codes: 1 Moderate, 2 High, 3 Very High.

Enacted in 2011, the state fire prevention fee is applied to parcels with habitable structures within California's State Responsibility Areas (SRA). Residents in SRA neighborhoods receive a bill annually from the state Board of Equalization. SRA, by definition, does not include any lands within city or town limits.

Boundaries of the spheres of influence of cities in San Mateo County. A sphere of influence is a planning boundary outside of an agency’s legal boundary (such as the city limit line) that designates the agency’s probable future boundary and service area. Data includes the names of areas located within the sphere of influence.

Boundaries of the spheres of influence of cities in San Mateo County. A sphere of influence is a planning boundary outside of an agency’s legal boundary (such as the city limit line) that designates the agency’s probable future boundary and service area. Data includes the names of areas located within the sphere of influence.