District of Columbia data on voluntary legal agreements that protect historic properties by restricting development. The dataset is provided by the District of Columbia government and was last updated on March 25, 2026. Easements are registered with the Historic Preservation Office and can qualify as charitable contributions for federal tax purposes.
Use Cases
- Map protected historic properties based on geospatial data formats like KML and GeoJSON.
- Analyze the relationship between conservation easements and property development rights based on the legal framework described.
- Model potential tax benefits for property owners based on the description of easements as charitable contributions.
Strengths
- Data is provided under a permissive CC-BY-4.0 license.
- Multiple geospatial file formats are available, including KML, GeoJSON, and an ArcGIS REST API.
Limitations
- Row count is unknown, which may limit suitability assessment.
- Column-level documentation is absent; field semantics must be inferred after download.
Provenance
- Source
- District of Columbia
- Collection Method
- Registered by presenting proof of recordation to the Historic Preservation Office.
- Freshness
- Last updated 2026-03-25 08:31:02.780990; freshness should be verified.
- Geography
- Washington, D.C.