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Description: The housing element of the general plan must include an inventory of land suitable and available for residential development to meet the locality’s regional housing need by income level. Government Code (GC) Section 65583(a)(3) requires local governments to prepare an inventory of land suitable for residential development – including vacant sites and sites with potential for redevelopment, an analysis of the relationship of zoning and public facilities and services to these sites, and an analysis of the relationship of the sites identified in the land inventory to the jurisdiction’s duty to affirmatively further fair housing – as part of the housing element. The purpose of the inventory is to identify sites that can be developed for housing within the planning period (GC Section 65583.2).The purpose of the housing element’s site inventory is to identify and analyze specific land (sites) that is available and suitable for residential development in order to determine the jurisdiction’s capacity to accommodate residential development and reconcile that capacity with the jurisdiction’s Regional Housing Need Allocation (RHNA). The site inventory enables the jurisdiction to determine whether there are sufficient adequate sites to accommodate the RHNA by income category. A site inventory and analysis will determine whether program actions must be adopted to “make sites available” with appropriate zoning, development standards, and infrastructure capacity to accommodate the new development need.[1]Two types of sites are included in local housing elements. First, it includes sites that are suitable for residential development if zoned appropriately and available for residential use during the planning period. These sites make up the housing element sites inventory. Second, when the inventory demonstrates that there are insufficient sites to accommodate the RHNA for each income category, local governments must identify sites for rezoning and include them in a housing element program to make available additional sites to accommodate those housing needs early within the planning period.This data contains sites sourced from the Housing Element Site Inventory Form created by HCD: Table A, Housing Element Sites Inventory. SCAG obtained the housing unit capacity by income level and total capacity for housing element sites from Table A.To develop the dataset, SCAG downloaded available information from the California Department of General Services via a map viewer created pursuant to Senate Bill 6 (Beall, 2019) and Assembly Bill 1255 (Rivas, 2019) in October 2025. The downloaded dataset included housing element sites (Table A) for 147 jurisdictions in the SCAG region. Through research, SCAG staff were able to obtain sites inventory information for an additional 21 jurisdictions. The final dataset includes housing element sites for 168 local jurisdictions. Once the information was compiled, staff formatted Assessor Parcel Numbers (APN) from the source data to match SCAG’s 2024 parcel data. Some sites and their capacity could not be mapped due to unmatched or incomplete APNs. The unmatched APNs may reflect parcels for which official APNs were not available at the time the sites inventory was prepared. Housing capacity was aggregated to the parcel level separately for housing element sites and candidate sites for rezoning. Therefore, sites with the same APN were collapsed into a single record within each site type. During the data cleaning and quality control process, staff discovered discrepancies between the DGS data and currently available local data. The discrepancies might reflect the point-in-time nature of the DGS data at the time of reporting, as well as potential errors in data processing. An exercise was undertaken to address these issues; however, users should consult local jurisdictions for the latest site-specific information. Note: This dataset is intended for planning purposes only, and SCAG shall incur no responsibility or liability as to the completeness, currentness, or accuracy of this information. SCAG assumes no responsibility arising from use of this information by individuals, businesses, or other public entities. The information is provided with no warranty of any kind, expressed or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. Users should consult with each local jurisdiction directly to obtain the official residential development information.[1] California Department of Housing and Community Development. (2020). Housing Element Sites Inventory Guidebook. Retrieved from https://www.hcd.ca.gov/community-development/housing-element/docs/Sites_inventory_memo_final06102020.pdfData Description/Field DefinitionField NameData TypeLengthDescription SourceField DescriptionPID24Text13SCAG2024 SCAG's unique parcel identifierAPN24Text10SCAG2024 Assessor Parcel Number as collected from the County Assessor OfficeCOUNTYText14SCAGCounty nameJurisdictionText21HCDName of jurisdictionAssessor_Parcel_NumberText15HCDOriginal APN entered by the jurisdiction that was used to match with APN24Low_Income_HE_CapacityDoubleHCDEstimated net number of lower income units each parcel can accommodate, sourced from Housing Element Sites Inventory Form Table A, Column P. Moderate_Income_HE_CapacityDoubleHCDEstimated net number of moderate income units each parcel can accommodate, sourced from Housing Element Sites Inventory Form Table A, Column Q. Above-Moderate_Income_HE_CapacityDoubleHCDEstimated net number of above-moderate income units each parcel can accommodate, sourced from Housing Element Sites Inventory Form Table A, Column R. Total_HE_CapacityDoubleHCDEstimated total housing units each parcel can accommodate, sourced from Housing Element Sites Inventory Form Table A, Column S.

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