District of Columbia Office of the Chief Technology Officer (OCTO) / DC GIS
DC Owner Polygons (Common Ownership Lots): the District of Columbia source behind our records
DC Owner Polygons (Common Ownership Lots) is published by District of Columbia Office of the Chief Technology Officer (OCTO) / DC GIS for District of Columbia. Inspect Pro Connect queries this service live for assessment / tax, land use / zoning class, ownership, parcel boundary, parcel / apn, situs address; it was last proven end to end against a real address on 2026-08-30.
What this service publishes
Geocoded into DC (FIPS 11001). dc-parcels returned 8 fields (published street address matched).
- Publishing agency
- District of Columbia Office of the Chief Technology Officer (OCTO) / DC GIS
- Jurisdiction covered
- District of Columbia
- Publication vintage
- Annual assessment year (EFFECTIVETAXYEAR attribute)
- Last verified against a real address
- 2026-08-30 — 2935 Mills Ave NE, Washington, DC 20018
How we cite it
Every value Property 360 prints from this service carries the agency name, the endpoint above and the verification date, and is labelled a fact from the record rather than an inference. When the agency publishes nothing for a field, the profile says so instead of filling the gap.
Start a free trial