Tax System Property Sales (CAMA): Real Estate Transaction History for Washington, D.C.

Daily updated sale history for active properties on the District of Columbia's real property tax assessment roll. Data originates from the Office of Tax and Revenue's Computer-Assisted Mass Appraisal system, used for ad valorem property tax valuation. The dataset represents a snapshot extracted from the CAMA system and is subject to constant maintenance and change.

Use Cases

• Modeling property valuation trends based on historical sale data.
• Analyzing real estate market activity for commercial and residential properties.
• Studying the relationship between property sales and tax assessments.
• Mapping property sale locations and frequencies using geospatial data.

Strengths

• Data is updated daily, providing a current snapshot.
• Maintained by the District of Columbia's official Assessment Division.
• Covers both commercial and residential real estate properties.

Limitations

• Row count and specific column definitions are unknown.
• Data is a snapshot and subject to change after extraction.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

District of Columbia Office of Tax and Revenue's Computer-Assisted Mass Appraisal (CAMA) system.

Collection Method

Extracted from the CAMA system used for property tax valuation.

Freshness

Updated daily; last recorded update was 2026-03-11 07:55:37.642662.

Geography

Washington, D.C., District of Columbia.