Metro Data Resource CenterThe undeveloped land layer represents lands appearing unimproved on 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 Definitions 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 show building activity, but development is incomplete and they are considered vacant. 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. The vacant portion is added to the vacant land database. 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: 1996-07-15 This is official RLIS data. Contact Person: Al Mowbray al.mowbray@oregonmetro.gov 503-797-1843 RLIS Metadata Viewer: https://gis.oregonmetro.gov/rlis-metadata/#/details/2913 RLIS Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/terms-of-useArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/d2d8ae900c594415acc318c2a8a80cad_0engRLIS DiscoveryPublicVacant and Developed Land 1996 [Oregon--Portland]Web servicesOregon--PortlandOregon1996