All states
District of Columbia
2 layers of parcels and buildings, each tested with our export code. The national base map (roads, water, buildings) is offered everywhere too.
Open the map| Area | Layers | Checked | Map |
|---|---|---|---|
| Statewide | ParcelsBuildings | 3 Nov 2026 | Map |
Terms, checks and service URLs for every layer
Statewide
ParcelsChecked 3 Nov 2026
- What it is
- Owner Polygons (Common Ownership Layer). OTR extract up to 2026-10-16 (EXTRACTDAT). Assessor tax parcels, not legal boundaries or a survey.
- Publisher
- DC Office of the Chief Technology Officer (DC GIS)
- Checked
- Fetched by our export code on a ~300 m test site on 3 November 2026: 23 features. See it on the map
- Terms
- Public; attribution: District of Columbia (DC GIS / OCTO)
- Layer URL
Building footprintsChecked 3 Nov 2026
- What it is
- DC Building Footprints (planimetrics). Current planimetric capture (CAPTUREYEAR per building)
- Publisher
- DC Office of the Chief Technology Officer (DC GIS)
- Checked
- Fetched by our export code on a ~300 m test site on 3 November 2026: 320 features. See it on the map
- Terms
- Public; DC GIS open data (CC BY 4.0)
- Layer URL
“Checked” means fetched by our export code on a test site. How we check · Data credits. Most local layers were found through Basesheet's source list (Copyright (c) 2026 Hunter Hillman, MIT License), then re-checked by us.