Current Land Use EXTENT: San Diego region DATE OF DATA: 2003
SANDAG's Land Layers were created for use in the Regional Growth Forecast to distribute projected growth for the San Diego region to suitable subareas in the region. These land layers include existing land use, planned land use, land ownership, constraints to development, land available for development, known site-specific developments, and lands available for redevelopment and infill. The land layers inventory is updated when new information is available.
Many of these data sets were built on the San Diego Geographic Information Source (SanGIS) landbase. The land use information for 2000 was updated from information collected in 1990. Multi-date satellite image change detection techniques were used to identify potential areas of change between 1990 and 1995. Color infra-red satellite images, black and white digital orthophotography, the SanGIS landbase, the County Assessor Master Property Records file, and other ancillary information were used to identify land use types. The land use information was reviewed by each of the local jurisdictions and the County of San Diego to ensure its accuracy. Although this inventory contains more categorical detail and has better positional accuracy than previous land use inventories, users should be aware that this data may be too generalized for some local planning projects.