Square Boundaries
Each Square is an Island, alone unto itself. There is not now nor has never been, any citywide Survey Coordinate System in D.C. Most squares are unrelated to other Squares by a “Measured” distance. They are related by Record. Street width is approximate. You cannot rely on the published official street widths to set up property lines or determine right-of-way. There is digital scan information available from DDOT regarding Right-of-Way. Some Squares are divided by streets making them muti-part and continues on the other side of the street. Since there is no citywide Survey Coordinate System, squares were placed in their approximate location. This process is known as “best fit”.
Resources
7 resources available
-
ARCGIS GEOSERVICES REST API
ArcGIS GeoService
ARCGIS GEOSERVICES REST API -
CSV
CSV -
File Geodatabase
ZIP -
GeoJSON
GEOJSON -
KML
KML
KML -
Shapefile
ZIP -
WEB PAGE
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 | <p>Each Square is an Island, alone unto itself. There is not now nor has never been, any citywide Survey Coordinate System in D.C. Most squares are unrelated to other Squares by a “Measured” distance. They are related by Record. Street width is approximate. You cannot rely on the published official street widths to set up property lines or determine right-of-way. There is digital scan information available from DDOT regarding Right-of-Way. Some Squares are divided by streets making them muti-part and continues on the other side of the street. Since there is no citywide Survey Coordinate System, squares were placed in their approximate location. This process is known as “best fit”.</p> |
| 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/41",
"mediaType": "application/json"
},
{
"@type": "dcat:Distribution",
"title": "CSV",
"format": "CSV",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/84ab8b676a384c339062b53dca3bdfa2/csv?layers=41",
"mediaType": "text/csv"
},
{
"@type": "dcat:Distribution",
"title": "File Geodatabase",
"format": "ZIP",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/84ab8b676a384c339062b53dca3bdfa2/filegdb?layers=41",
"mediaType": "application/zip"
},
{
"@type": "dcat:Distribution",
"title": "GeoJSON",
"format": "GeoJSON",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/84ab8b676a384c339062b53dca3bdfa2/geojson?layers=41",
"mediaType": "application/vnd.geo+json"
},
{
"@type": "dcat:Distribution",
"title": "KML",
"format": "KML",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/84ab8b676a384c339062b53dca3bdfa2/kml?layers=41",
"mediaType": "application/vnd.google-earth.kml+xml"
},
{
"@type": "dcat:Distribution",
"title": "Shapefile",
"format": "ZIP",
"accessURL": "https://opendata.dc.gov/api/download/v1/items/84ab8b676a384c339062b53dca3bdfa2/shapefile?layers=41",
"mediaType": "application/zip"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS Hub Dataset",
"format": "Web Page",
"accessURL": "https://opendata.dc.gov/datasets/DCGIS::square-boundaries",
"mediaType": "text/html"
}
]
|
| identifier | https://www.arcgis.com/home/item.html?id=84ab8b676a384c339062b53dca3bdfa2&sublayer=41 |
| issued | 2015-02-27T21:10:08.000Z |
| keyword |
[
"Cadastral",
"DC",
"District of Columbia",
"Land",
"Lot",
"Property",
"Squares",
"Washington DC",
"vpmdata"
]
|
| landingPage | https://opendata.dc.gov/datasets/DCGIS::square-boundaries |
| license | https://creativecommons.org/licenses/by/4.0 |
| modified | 2026-05-01T00:00:00.000Z |
| publisher |
{
"name": "Department of Buildings"
}
|
| spatial | -77.1142,38.8103,-76.9095,38.9960 |
| theme |
[
"geospatial"
]
|
| title | Square Boundaries |
