Vacant and Developed Land 2023

Area appearing unimproved on 2023 aerial photography, without regard to developability and accessibility. On partially developed parcels, only undeveloped areas 1/2 acre or larger are included. Metro's Vacant Land Definition: Every tax lot is determined to be vacant, partially vacant, or developed. Vacant tax lots are those that have no building, improvements or identifiable land use. Developed lots must have improvements and specific land uses. For example, a paved parking lot is developed but an unpaved lot where trucks are parked is vacant. Lots under site development are only considered developed if structure is evident. For example, earthwork and grading are considered vacant but buildings under construction (foundation or more) are considered developed. If a developed tax lot has 1/2 acre (20,000-sq. ft.) or greater portion that is vacant, the lot is considered to be partially vacant and partially developed. A polygon is delineated around the occupied portion, which includes buildings, landscaped yards, etc. The remaining portion (greater than 1/2 acre) is coded vacant (vac = 1). Parks and open spaces are treated as developed. During the assessment of each tax lot, no consideration is given to constrained land, suitability for building, or to redevelopment potential. Date of last data update: 2024-04-24 This is official RLIS data. Contact Person: Al Mowbray [e-mail] Emailing the contact person listed above is the fastest way to get a response, but if you prefer to call, you can contact the Data Resource Center at 503-797-1742 and someone will return your call as soon as they are able. RLIS Metadata Viewer: https://gis.oregonmetro.gov/rlis-metadata/#/details/3808 Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/open-database-license本数据集对应2023年航空摄影中呈现为未改良的区域，不考量其可开发性与可达性。针对部分已开发地块，仅纳入面积不小于0.5英亩的未开发区域。 都会区（Metro）空地定义标准如下：所有计税地块均被划分为空地、部分空地或已开发地块三类。无建筑、改良设施或可识别土地用途的计税地块即为空地。已开发地块需具备改良设施与明确土地用途：例如铺装停车场属于已开发地块，而停放卡车的未铺装场地则归类为空地。处于场地开发阶段的地块，仅当可见建筑结构时才被视为已开发：如土方工程与场地平整属于空地范畴，但已开工建设的建筑（地基及以上阶段）则属于已开发地块。若某已开发计税地块存在面积不小于0.5英亩（20000平方英尺）的空置区域，则该地块将被视为部分空地与部分已开发地块：工作人员会围绕包含建筑、景观庭院等在内的已占用区域绘制多边形要素，剩余面积超过0.5英亩的部分将被编码为空地（vac=1）。公园与开放空间均被视为已开发地块。在对每个计税地块进行评估时，无需考虑受限土地、建筑适宜性或再开发潜力。 最后一次数据更新日期：2024-04-24。本数据为官方RLIS数据。 联系人：Al Mowbray，电子邮箱：[e-mail]。通过上述联系人发送邮件是获取回复的最快途径；若偏好致电，可联系数据资源中心，电话：503-797-1742，工作人员将尽快回电。 RLIS元数据查看器：https://gis.oregonmetro.gov/rlis-metadata/#/details/3808 使用条款：https://rlisdiscovery.oregonmetro.gov/pages/open-database-license