Common Ownership Lots
This polygon layer is built from the various lot types in the District. The common ownership dataset is conflated by Square, Suffix and Lot to include: Air Rights, Record, Parcel, Tax and Reservation lots. Some Parcels and Reservations fall outside of a Square’s boundary. It represents all lands that are outside right-of-way. It does NOT include condominiums. Refer to the Condo Approval Lots and Condo Relate Table.Record, Tax, Parcel, Reservation, and Air Rights Lots are all found individually on opendata.dc.gov. The Office of Tax and Revenue maintains a database known as Information Tax System (ITS) that contains the accounts for the real property taxes. ITS records reference record lots, tax lots, parcels, condominiums and federally owned lands such as reservations. Information from ITS is conflated to Common Ownership Lot features by SSL (Square, Suffix and Lot). This layer is regenerated WEEKLY with an automated algorithm using the latest Pubic Extract information for attribution.
Resources
7 resources available
-
ArcGIS GeoService
ARCGIS GEOSERVICES REST API -
CSV
CSV -
File Geodatabase
ZIP -
GeoJSON
GEOJSON -
KML
KML -
Shapefile
ZIP -
ArcGIS Hub Dataset
WEB PAGE
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| contactPoint |
{
"fn": "DCGISopendata",
"@type": "vcard:Contact",
"hasEmail": "mailto:gisgroup@dc.gov"
}
|
| description | <div style='text-align:Left;'><p><span>This polygon layer is built from the various lot types in the District. The common ownership dataset is conflated by Square, Suffix and Lot to include: Air Rights, Record, Parcel, Tax and Reservation lots. Some Parcels and Reservations fall outside of a Square’s boundary. It represents all lands that are outside right-of-way. It does NOT include condominiums. Refer to the </span><a target='_blank' href='https://opendata.dc.gov/datasets/DCGIS::condo-approval-lots/about' rel='nofollow ugc noopener noreferrer'><span>Condo Approval Lots</span></a><span> and </span><a target='_blank' href='https://opendata.dc.gov/datasets/DCGIS::condo-relate-table/about' rel='nofollow ugc noopener noreferrer'><span>Condo Relate Table</span></a><span>.</span></p><p><span>Record, Tax, Parcel, Reservation, and Air Rights Lots are all found individually on </span><a target='_blank' href='https://opendata.dc.gov:443/' rel='nofollow ugc noopener noreferrer'><span><u>opendata.dc.gov</u></span></a><span>. The Office of Tax and Revenue maintains a database known as Information Tax System (ITS) that contains the accounts for the real property taxes. ITS records reference record lots, tax lots, parcels, condominiums and federally owned lands such as reservations. Information from ITS is conflated to Common Ownership Lot features by SSL (Square, Suffix and Lot). </span>This layer is regenerated WEEKLY with an automated algorithm using the latest Pubic Extract information for attribution.</p></div> |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "ArcGIS GeoService",
"format": "ArcGIS GeoServices REST API",
"accessURL": "https://maps2.dcgis.dc.gov/dcgis/rest/services/DCGIS_DATA/Property_and_Land_WebMercator/FeatureServer/40",
"mediaType": "application/json"
},
{
"@type": "dcat:Distribution",
"title": "CSV",
"format": "CSV",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/1f6708b1f3774306bef2fa81e612a725/csv?layers=40",
"mediaType": "text/csv"
},
{
"@type": "dcat:Distribution",
"title": "File Geodatabase",
"format": "ZIP",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/1f6708b1f3774306bef2fa81e612a725/filegdb?layers=40",
"mediaType": "application/zip"
},
{
"@type": "dcat:Distribution",
"title": "GeoJSON",
"format": "GeoJSON",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/1f6708b1f3774306bef2fa81e612a725/geojson?layers=40",
"mediaType": "application/vnd.geo+json"
},
{
"@type": "dcat:Distribution",
"title": "KML",
"format": "KML",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/1f6708b1f3774306bef2fa81e612a725/kml?layers=40",
"mediaType": "application/vnd.google-earth.kml+xml"
},
{
"@type": "dcat:Distribution",
"title": "Shapefile",
"format": "ZIP",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/1f6708b1f3774306bef2fa81e612a725/shapefile?layers=40",
"mediaType": "application/zip"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"accessURL": "https://opendata.dc.gov/datasets/DCGIS::common-ownership-lots",
"mediaType": "text/html"
}
]
|
| identifier | https://www.arcgis.com/home/item.html?id=1f6708b1f3774306bef2fa81e612a725&sublayer=40 |
| issued | 2015-02-27T21:10:07.000Z |
| keyword |
[
"DC",
"DOB",
"District of Columbia",
"Land",
"Lot",
"Property",
"Square",
"Washington DC",
"air right",
"parcel",
"planning cadastre",
"record",
"reservations",
"tax",
"vpmdata"
]
|
| landingPage | https://opendata.dc.gov/datasets/DCGIS::common-ownership-lots |
| license | https://creativecommons.org/licenses/by/4.0 |
| modified | 2026-05-13T06:29:52.000Z |
| publisher |
{
"name": "Department of Buildings"
}
|
| spatial | -77.1194,38.8016,-76.9090,38.9960 |
| theme |
[
"geospatial"
]
|
| title | Common Ownership Lots |
