Connecticut Protected Open Space Parcels

About this view: This hosted feature view represents a filtered subset of the statewide parcel and CAMA dataset described below. The subset was produced by executing a text‑based query on the Owner, Co-Owner and State Use Description attributes of the authoritative parcel layer. The query identifies parcels where the fields contains includes text strings associated with lands preserved for conservation, passive or active recreation, natural resource protection, or public enjoyment. Data may be missing for certain municipalities (see Ownership Suppression below). Publicly Owned Parcels Query: Owner or Co-Owner (contains any of the following): land trust, land alliance, conserv (conservancy, conservation). State Use Description (contains any of the following): forest (forst), open (opn), rec. The list above is not exhaustive. The GISO has identified minimal false positives in this query. Reach out at [e-mail] with any feedback. About the source: Pursuant to Section 7-100l of the Connecticut General Statutes, each municipality is required to transmit a digital parcel file and an accompanying assessor’s database file (known as a CAMA report), to its respective regional council of governments (COG) by May 1 annually. The dataset has combined the Parcels and Computer-Assisted Mass Appraisal (CAMA) data for 2025 into a single dataset. This dataset is designed to make it easier for stakeholders and the GIS community to use and access the information as a geospatial dataset. Included in this dataset are geometries for all 169 municipalities and attribution from the CAMA data for all but one municipality. These data were gathered from the CT municipalities by the COGs and then submitted to CT OPM. This dataset was created on September 2025 from data collected in 2024-2025. Data was processed using Python scripts and ArcGIS Pro for standardization and integration of the data. To learn more about Parcel and CAMA in CT visit our Parcels Page in the Geodata Portal. Coordinate system: This dataset is provided in NAD 83 Connecticut State Plane (2011) (EPSG 6434). Ownership Suppression: The updated dataset includes parcel data for all towns across the state, with some towns featuring fully suppressed ownership information. In these instances, the owner’s name was replaced with the label "Current Owner," the co-owner’s name will be listed as "Current Co-Owner," and the mailing address will appear as the property address itself. For towns with fully suppressed ownership data, please note that no "Suppression" field was included in the submission to confirm these details and this labeling approach was implemented as the solution. New Data Fields: The new dataset introduces the “Property Zip” and “Mailing Zip” fields, which will display the zip codes for the owner and property. Service URL: In 2024, we implemented a stable URL to maintain public access to the most up-to-date data layer. Users are strongly encouraged to transition to the new service as soon as possible to ensure uninterrupted workflows. This URL will remain persistent, providing long-term stability for your applications and integrations. Once you’ve transitioned to the new service, no further URL changes will be necessary. CAMA Notes: The CAMA underwent several steps to standardize and consolidate the information. Python scripts were used to concatenate fields and create a unique identifier for each entry. The resulting dataset contains 1,354,720 entries and information on property assessments and other relevant attributes. CAMA was provided by the towns. Spatial Data Notes: Data processing involved merging the parcels from different municipalities using ArcGIS Pro and Python. The resulting dataset contains 1,282,833 parcels. No alteration has been made to the spatial geometry of the data. Fields that are associated with CAMA data were provided by towns. The data fields that have information from the CAMA were sourced from the towns’ CAMA data. If no field for the parcels was provided for linking back to the CAMA by the town a new field within the original data was selected if it had a match rate above 50%, that joined back to the CAMA. Linking fields were renamed to "Link". All linking fields had a census town code added to the beginning of the value to create a unique identifier per town. Any field that was not town name, Location, Editor, Edit Date, or a field associated back to the CAMA, was not used in the creation of this Dataset. Only the fields related to town name, location, editor, edit date, and link fields associated with the towns’ CAMA were included in the creation of this dataset. Any other field provided in the original data was deleted or not used. Field names for town (Muni, Municipality) were renamed to "Town Name". Attributes included in the data: Town Name Owner Co-Owner Link Editor Edit Date Collection year – year the parcels were submitted Location Property Zip Mailing Address Mailing City Mailing State Mailing Zip Assessed Total Assessed Land Assessed Building Pre-Year Assessed Total Appraised Land Appraised Building Appraised Outbuilding Condition Model Valuation Zone State Use State Use Description Land Acre Living Area Effective Area Total rooms Number of bedrooms Number of Baths Number of Half-Baths Sale Price Sale Date Qualified Occupancy Prior Sale Price Prior Sale Date Prior Book and Page Planning Region FIPS Code *Please note that not all parcels have a link to a CAMA entry. *If any discrepancies are discovered within the data, whether pertaining to geographical inaccuracies or attribute inaccuracy, please directly contact the respective municipalities to request any necessary amendments Additional information about the specifics of data availability and compliance will be coming soon. If you need a WFS service for use in specific applications : Please Click Here Contact: [e-mail]关于此托管要素视图（hosted feature view）： 本托管要素视图为下文所述的全州宗地与计算机辅助批量评估（Computer-Assisted Mass Appraisal, CAMA）数据集的过滤子集。该子集通过对权威宗地图层的所有者、共同所有者及州用地描述属性执行基于文本的查询生成。此查询用于识别字段中包含与保护用地、被动或主动娱乐、自然资源保护或公共享用相关文本字符串的宗地。部分市政区域可能存在数据缺失情况（详见下文「所有权抑制」说明）。 公共所有宗地查询规则： 所有者或共同所有者（包含以下任一关键词）：land trust、land alliance、conserv（涵盖conservancy、conservation）。 州用地描述（包含以下任一关键词）：forest（forst）、open（opn）、rec。 上述关键词列表并非穷尽式列举。地理信息系统办公室（Geographic Information Systems Office, GISO）已识别到此查询存在少量假阳性结果。如有反馈，请发送邮件至[e-mail]。 关于源数据： 根据《康涅狄格州法典》第7-100l条规定，各市政区域须于每年5月1日前向其所属区域政府委员会（regional council of governments, COG）提交数字宗地文件及配套的评估师数据库文件（即CAMA报告）。本数据集整合了2025年的宗地与计算机辅助批量评估（CAMA）数据，形成单一数据集。本数据集旨在方便利益相关方与地理信息系统（GIS）社区将其作为空间数据集使用与获取。 本数据集包含全州169个市政区域的几何数据，以及除1个市政区域外其余所有区域的CAMA属性数据。上述数据由区域政府委员会从康涅狄格州（Connecticut, CT）各市政区域收集后提交至康涅狄格州人事与管理部（OPM）。本数据集于2025年9月基于2024-2025年收集的数据创建。数据通过Python脚本与ArcGIS Pro进行标准化处理与整合。如需了解康涅狄格州宗地与CAMA的更多信息，请访问地理数据门户中的「宗地页面」。 坐标系： 本数据集采用NAD 83康涅狄格州平面坐标系（2011）（EPSG 6434）。 所有权抑制： 本更新后的数据集包含全州所有城镇的宗地数据，其中部分城镇的所有权信息已完全抑制。此类情况下，所有者姓名将替换为「当前所有者」，共同所有者姓名将显示为「当前共同所有者」，邮寄地址将直接使用物业地址。对于完全抑制所有权数据的城镇，请注意提交的数据集未包含「抑制」字段以确认此类信息，因此采用上述标注方式作为解决方案。 新增数据字段： 本数据集新增「物业邮编（Property Zip）」与「邮寄邮编（Mailing Zip）」字段，用于显示所有者与物业的邮政编码。 服务URL： 2024年，我们启用了稳定URL以保障公众能够访问最新的数据图层。强烈建议用户尽快迁移至新服务，以确保工作流程不受中断。此URL将保持持久可用，为您的应用与集成提供长期稳定性。完成迁移后，无需再进行URL变更。 CAMA说明： CAMA数据经过多步骤标准化与信息整合处理。我们使用Python脚本拼接字段并为每条记录创建唯一标识符。最终数据集包含1,354,720条记录，涵盖物业评估值及其他相关属性信息。CAMA数据由各城镇提供。 空间数据说明： 数据处理过程中，我们使用ArcGIS Pro与Python合并了来自不同市政区域的宗地数据。最终数据集包含1,282,833宗宗地。未对数据的空间几何信息进行任何修改。与CAMA数据相关的字段由各城镇提供。源自CAMA的数据字段均取自各城镇的CAMA数据集。若某城镇未提供用于关联宗地与CAMA的字段，我们将选取匹配率高于50%的原有数据字段以实现与CAMA的关联。关联字段已重命名为「关联ID（Link）」。所有关联字段均在值前添加了普查城镇代码，以生成每个城镇的唯一标识符。 本数据集仅保留城镇名称、位置、编辑器、编辑日期以及与各城镇CAMA相关的关联字段，其余原始数据字段均已删除或未使用。城镇名称字段（原字段名为Muni、Municipality）已重命名为「城镇名称（Town Name）」。 数据包含的属性： 城镇名称（Town Name） 所有者（Owner） 共同所有者（Co-Owner） 关联ID（Link） 编辑器（Editor） 编辑日期（Edit Date） 收集年份——宗地提交的年份 位置（Location） 物业邮编（Property Zip） 邮寄地址（Mailing Address） 邮寄城市（Mailing City） 邮寄州（Mailing State） 邮寄邮编（Mailing Zip） 总计税评估值（Assessed Total） 土地计税评估值（Assessed Land） 建筑计税评估值（Assessed Building） 前一年度总计税评估值（Pre-Year Assessed Total） 土地估值（Appraised Land） 建筑估值（Appraised Building） 附属建筑估值（Appraised Outbuilding） 状况（Condition） 模型估值（Model Valuation） 区划（Zone） 州用地代码（State Use） 州用地描述（State Use Description） 土地面积（Land Acre） 居住面积（Living Area） 有效面积（Effective Area） 总房间数（Total rooms） 卧室数量（Number of bedrooms） 浴室数量（Number of Baths） 半浴室数量（Number of Half-Baths） 销售价格（Sale Price） 销售日期（Sale Date） 合格入住资格（Qualified Occupancy） 往期销售价格（Prior Sale Price） 往期销售日期（Prior Sale Date） 往期账簿与页码（Prior Book and Page） 规划区域（Planning Region） FIPS代码（FIPS Code） *请注意，并非所有宗地都有对应的CAMA关联条目。 *若发现数据存在地理或属性方面的偏差，请直接联系所属市政区域以申请必要的修正。 有关数据可用性与合规性的更多具体信息将近期公布。 如需用于特定应用的Web要素服务（Web Feature Service, WFS）：请点击此处。 联系方式：[e-mail]