Common Ownership Lots for Washington, D.C., Representing Land Outside Right-of-Way

Weekly updated geospatial data from the District of Columbia's Vector Property Mapping database, representing all lands outside public rights-of-way. The layer is built from multiple polygon feature classes including Record, Tax, Parcel, Reservation, and Air Rights Lots, with attribution conflated from the Office of Tax and Revenue's Information Tax System. It does not include condominium records.

Use Cases

• Map and analyze property boundaries based on the polygon layer representing land outside rights-of-way.
• Cross-reference land ownership for tax assessment purposes based on the linkage to the Information Tax System (ITS).
• Identify and visualize different lot types such as Air Rights or Reservation Lots for development planning.
• Integrate parcel data with other geospatial layers for urban infrastructure analysis based on the weekly update cycle.

Strengths

• Data is regenerated weekly, suggesting regular updates.
• Attribution is conflated from the authoritative Office of Tax and Revenue Information Tax System (ITS).
• Layer is built from multiple source polygon feature classes, suggesting a consolidated view.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and spatial extent details are unknown, which may limit suitability assessment.
• The description notes the layer does not include condo records, which may be a gap for certain analyses.

Provenance

Source

District of Columbia's Vector Property Mapping database and Office of Tax and Revenue Information Tax System (ITS).

Collection Method

Built from various polygon feature classes and regenerated weekly with an automated algorithm using the latest Public Extract.

Freshness

Last updated 2026-03-25 08:17:54.823886; freshness should be verified.

Geography

Washington, D.C., United States.