Square Boundaries

Squares are calculated by the outer extents of the record or tax lots within a defined area (typically a city block). There are roughly 4896 active squares. A Square is similar to a city block. Squares were numbered starting at 1 and are currently in the 6000 series. Not all squares are active. A common cause of squares becoming inactive has been through street closing and combining squares. When the squares are combined usually the lower square number is killed and the higher square number is used for the combined square. For example if squares 1 and 2 are combined, square 1 is killed and the combination becomes square 2.Spatial locations:Each Square is an Island, alone unto itself. There is not now, and has never been, any citywide Survey Coordinate System in D.C. Most squares are unrelated to other Squares by “Measured.” 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. That is, the same Square 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”.

Data e Risorse

Campo	Valore
accessLevel	public
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catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy	https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier	https://www.arcgis.com/home/item.html?id=84ab8b676a384c339062b53dca3bdfa2&sublayer=41
issued	2015-02-27T21:10:08.000Z
landingPage	https://opendata.dc.gov/datasets/DCGIS::square-boundaries
license	https://creativecommons.org/licenses/by/4.0
metadata_type	geospatial
modified	2025-05-19T18:29:23.000Z
old-spatial	-77.1142,38.8103,-76.9095,38.9960
publisher	Department of Buildings
resource-type	Dataset
source_datajson_identifier	true
source_hash	4ccf9b6dc069f6ce57bb39376c828a25f1dda05a303fe330add8395051fa431a
source_schema_version	1.1
spatial	{"type": "Polygon", "coordinates": [[[-77.1142, 38.8103], [-77.1142, 38.9960], [-76.9095, 38.9960], [-76.9095, 38.8103], [-77.1142, 38.8103]]]}
theme	{geospatial}
Gruppi	AmeriGEOSS National Provider North America
Tag	AmeriGEO AmeriGEOSS CKAN GEO GEOSS National North America United States cadastral dc district-of-columbia land lot property square squares vpmdata washington-dc
isopen	True
license_id	cc-by
license_title	Creative Commons Attribution
license_url	http://www.opendefinition.org/licenses/cc-by
maintainer	DCGISopendata
maintainer_email	gisgroup@dc.gov
metadata_created	2025-09-23T15:55:55.716320
metadata_modified	2025-09-23T15:55:55.716327
notes	<div style='text-align:Left;'><div><div><p><span>Squares are calculated by the outer extents of the record or tax lots within a defined area (typically a city block). There are roughly 4896 active squares. A Square is similar to a city block. Squares were numbered starting at 1 and are currently in the 6000 series. Not all squares are active. A common cause of squares becoming inactive has been through street closing and combining squares. When the squares are combined usually the lower square number is killed and the higher square number is used for the combined square. For example if squares 1 and 2 are combined, square 1 is killed and the combination becomes square 2.</span></p><p><span>Spatial locations:</span></p><p><span>Each Square is an Island, alone unto itself. There is not now, and has never been, any citywide Survey Coordinate System in D.C. Most squares are unrelated to other Squares by “Measured.” 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. That is, the same Square 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”.</span></p></div></div></div>
num_resources	7
num_tags	18
title	Square Boundaries