Learn about the most recent GIS data updates to the District's comprehensive geospatial database.
The DC GIS program operates a data maintenance and enhancement program to keep data current and introduce new and valuable GIS layers to the District government and public. The most recent data additions and updates to the DC GIS data services are:
Air Rights Lots
* CAMA - Computer Aided Mass Appraisal
The data is accessible through the DC GIS Data Clearinghouse/Catalog. Enter a keyword or layer name into the search field to return metadata and download options. Download options are available for both ESRI and Google formats. DC GIS data can also filtered by layer theme for grouped results. The advanced search allows for specialized searching.