HousingElementRezone_poly_scag

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 B, Candidate Sites Identified to be Rezoned to Accommodate Shortfall Housing Need. SCAG obtained the estimated unit capacity under proposed rezoning from Table B for jurisdictions that were required to rezone and submitted site information.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 candidate sites for rezoning for 77 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 APN24Rezone_CapacityDoubleHCDEstimated realistic unit capacity for each parcel under the proposed zoning, sourced from Housing Element Sites Inventory Form Table B, Column Q.总体规划中的住房要素必须包含按收入层级划分的、适用于且可用于住宅开发的土地清单，以满足本地区域性住房需求。《政府法典》（Government Code, GC）第65583(a)(3)条要求地方政府编制适用于住宅开发的土地清单——包括空置地块及具备再开发潜力的地块，分析土地分区与公共设施、服务和这些地块的关系，以及土地清单中确定的地块与辖区积极推进公平住房义务的关系——作为住房要素的组成部分。该清单的目的是识别出可在规划期内开发为住宅的地块（《政府法典》第65583.2条）。 住房要素地块清单的目的是识别并分析可用于、适用于住宅开发的特定土地（地块），以确定辖区容纳住宅开发的能力，并将该能力与辖区的区域住房需求分配（Regional Housing Need Allocation, RHNA）相协调。该地块清单可帮助辖区确定是否有足够的合格地块，按收入类别容纳区域住房需求分配的住房量。地块清单与分析将确定是否需要通过相关规划行动，采用适当的土地分区、开发标准和基础设施容量，以“提供可开发地块”来满足新的开发需求[1]。 地方住房要素包含两类地块。第一类，是若经适当土地分区后可用于住宅开发、且在规划期内可供住宅使用的地块，此类地块构成住房要素地块清单。第二类，当清单显示现有地块不足以满足各收入类别的区域住房需求分配时，地方政府必须识别需进行土地分区调整的地块，并将其纳入住房要素规划，以在规划期内尽早提供额外地块来满足此类住房需求。 本数据集包含来自住房与社区发展部（Housing and Community Development, HCD）编制的《住房要素地块清单表》中的地块：即表B中确定的、拟通过土地分区调整以弥补住房需求缺口的候选地块。南加州政府联盟（Southern California Association of Governments, SCAG）从表B中提取了需进行土地分区调整的辖区在拟调整分区下的估算住宅单元容量，并提交了地块信息。 为构建本数据集，SCAG于2025年10月通过依据《参议院法案6》（Beall，2019）和《Assembly Bill 1255》（Rivas，2019）创建的地图查看器，从加利福尼亚州综合服务部（California Department of General Services, DGS）下载了可用信息。下载的数据集包含77个地方辖区的拟土地分区调整候选地块。信息汇总后，工作人员将源数据中的地块编号（Assessor Parcel Number, APN）进行格式调整，以匹配SCAG 2024年的地块数据。由于地块编号不匹配或不完整，部分地块及其容量无法完成制图。不匹配的地块编号可能反映出在编制地块清单时，官方地块编号尚未公开。住房容量分别按住房要素地块和拟土地分区调整候选地块两类，聚合至地块层级。因此，同一地块类型下具有相同地块编号的地块将被合并为单条记录。在数据清理与质量控制过程中，工作人员发现DGS数据与当前可用的本地数据存在差异。此类差异可能反映了DGS数据在报告时的时间点特性，以及数据处理过程中可能存在的误差。虽已开展相关工作以解决此类问题，但用户应咨询当地辖区以获取最新的地块专属信息。 注意：本数据集仅用于规划用途，SCAG不对本信息的完整性、时效性或准确性承担任何责任或义务。SCAG不对个人、企业或其他公共实体使用本信息所引发的任何问题承担责任。本信息不提供任何明示或暗示的担保，包括但不限于适销性和特定用途适用性的默示担保。用户应直接咨询各地方辖区以获取官方住宅开发信息。[1] 加利福尼亚州住房与社区发展部。(2020). 《住房要素地块清单指南》。检索自 https://www.hcd.ca.gov/community-development/housing-element/docs/Sites_inventory_memo_final06102020.pdf 数据描述/字段定义 字段名称 数据类型 长度 描述来源 字段说明 PID24 文本型 13 SCAG2024 SCAG 2024年唯一地块标识符 APN24 文本型 10 SCAG2024 从县评估办公室收集的地块编号（Assessor Parcel Number, APN） COUNTY 文本型 14 SCAG 县名称 Jurisdiction 文本型 21 HCD 辖区名称 Assessor_Parcel_Number 文本型 15 HCD 由辖区录入的原始地块编号，用于与APN24字段进行匹配 Rezone_Capacity 双精度型 HCD 拟调整分区下每块地块的估算合理住宅单元容量，源自《住房要素地块清单表》表B的Q列。