City of Portland, OregonRegional building footprints. Original buildings are constructed of multiple "polygons" representing the different building heights. All polygons making up a single building have the same "building ID" [Bldg_ID], which was used to dissolve the buildings into generalized building footprints. Attributes that apply to the entire building were retained. -- Additional Information: Category: Building Purpose: For mapping generalized building footprints, i.e., cartographic base maps. Update Frequency: Continually -- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52413ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/c59664c9f2204027ac9774eee7d330a6_48engPortlandMaps Open DataPublicBuilding Footprints [Oregon--Portland]Web servicesOregon--PortlandOregonLast Modified: 2026-01-07