Department of BuildingsThese are lines beyond which property owners or others have no legal or vested rights to extend a building or any part thereof without approval of the proper authorities; ordinarily a line of demarcation between public and private property, but also applied to a building restriction line, when recorded in the records of the Surveyor.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/2b0a357ebb564f6eb94d307741cf5e1c_9engOpen Data DCPublicBuilding Restriction Lines [District of Columbia--Washington]Web servicesDistrict of Columbia--WashingtonDistrict of ColumbiaLast Modified: 2025-05-16