The District of Columbia

Zoning

Zoning

by Office of Zoning on Weekly

Keywords
About: Zoning, Planning, District, Land use regulation, Residence District, Special purpose District, Mixed use District, Commercial District, Industrial District, boundary
Taking place at: Washington, D.C., District of Columbia, DC, DC GIS, DCGIS

Abstract

Zoning. The dataset contains polygons representing zoning districts, as submitted to the DC Office of Zoning, created for the DC Office of Zoning (DCOZ). Zoning districts were identified from official adopted zoning and unofficial zoning documents and heads-up digitized from the 1995 orthophotographs.

All data is stored and exported in Maryland State Plane coordinates NAD 83 meters.

METADATA CONTENT IS IN PROCESS OF VALIDATION AND SUBJECT TO CHANGE.

Purpose

This data is used for the implementation and regulation of development in Washington, D.C. by local government agencies.

Access constraints

Contact OCTO GIS. Any data obtained outside of OCTO GIS or the DC Office of Zoning are unauthorized copies.

Use constraints

Acknowledgment of the DC Geographic Information Systems Program (DC GIS). The District of Columbia Government makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein.

For a fee, the Office of Zoning provides a zoning certification service when legal proof of zoning designation is required. The zoning map represented by this layer is unofficial and has not been adopted by the DC Office of Zoning. Once the DC OZ adopts the map, the only official Zoning map will reside on the DC Office of Zoning's server. Extracts from the map may be distributed to other DC government offices, but these extracts will not be official Zoning maps.

Point of contact

Nyambi Nyambi
in D.C. Office of Zoning

441 4th St NW
Washington DC, 20001,

phone: (202) 727-0314
fax: 202-727-5660
hours: 10 am - 5 pm

Credits

District of Columbia Office of Zoning (DCOZ)

Data accuracy

Accuracy
Data believed to be complete and accurate, subject to change. Digital version compared with original source data for accuracy and completeness. Validated by source and/or responsible agency.

Logical consistency
Data is updated by Data Coordinator and QC'ed by the Chief Technology Officer. Topology is enabled and checked with each change.

Completeness
Data believed to be complete and accurate, subject to change. Digital version compared with original source data for accuracy and completeness. Validated by source and/or responsible agency.

Horizontal positional accuracy
Horizontal accuracy based on DC GIS Real Property Data

Vertical positional accuracy
N/A

Lineage / Sources

  • Zoning map of DC 1996
    map, geography and attributes
    Zoning map of DC 1996
    by DCOZ, 1996
  • Zoning map of DC 1987
    map, geography and attributes
    Zoning map of DC 1987
    by DCOZ, 1987
  • Zoning Geodatabase
    database, location and attributes
    Zoning Geodatabase
    by DC Office of Zoning, 05/06/05
Lineage / Processes
Nyambi A. Nyambi
in D.C. Office of Zoning



phone: (202) 727-0314
hours: 10 am - 5 pm
Base data came from two sources: the street centerline developed by Spatial Systems (SSI), and georeferenced scanned maps from the Real Property Tax Administration. Attribute data was provided by zoning regulations and orders. This map is unofficial, not yet adopted by the Zoning Commission. Planimetric data was not available when this data was first created.

Maintenance for Zoning layer:

Notification of new, approved zoning orders is sent to the Office of Zoning's contractor, Michael Baker (Baker). Baker staff make the requested changes to the Zoning layer within the Zoning geodatabase. Zoning layer boundaries are snapped to the Street Centerline GIS layer from the DC Atlas. Once completed, the updated layer is posted to the server at the Office of Zoning.

The related tables "Zoning_Cases" and "Zoning_Orders" are also updated with information about the zoning order (such as the order number, square and lot of the requested change, previous and new zoning for the area, and dates of the hearing and approval). The Case Number serves as the primary key to link the geospatial layer to these tables.

The zoning map represented by this layer is unofficial and has not been adopted by the DC Office of Zoning. Once the DC OZ adopts the map, the only official Zoning map will reside on the DC Office of Zoning's server. Extracts from the map may be distributed to other DC government offices, but these extracts will not be official Zoning maps.

All data is stored and exported in Maryland State Plane coordinates NAD 83 meters.
GIS Data Coordinator
in Office of the Chief Technology Officer

441 4th St NW, Suite 930S
Washington DC, 20001, USA

fax: 202-727-5660
hours: 8:30am - 5:00pm
Staff extracted the data from a copy of Zoning geodatabase dated 05/06/05.

Distribution

Most DC GIS datasets can be downloaded from "http://dcgis.dc.gov" on the data center page. Orders can also be made by contacting OCTO GIS at "dcgis@dc.gov", especially for datasets not available for download.

Distribution liability
DCOZ and OCTO make no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred, with respect to the information or data furnished herein. Subject to terms and conditions of the Memorandum of Agreement. Memorandum of Agreement must have authorized signature.

Distributed by
Nyambi Nyambi
in DC Office of Zoning

441 4th St NW
Washington DC, 20001,

phone: (202) 727-0314
hours: 10 am - 5 pm

Entity

Zoning

Attributes

  • SHAPE / ESRI
    Feature geometry.
  • SHAPE_AREA / ESRI
    Area of feature in internal units squared.
  • SHAPE_LEN / ESRI
    Internal feature number.
  • ZONING / ESRI
    Zoning Code
  • Shape / ESRI
    Feature geometry.
  • ZONING_WEB
  • ZONING_CHA
  • ZONING_STA
  • ZONING_LAB / ESRI
    Area of feature in internal units squared.

Metadata

FGDC Content Standards for Digital Geospatial Metadata / FGDC-STD-001-1998 as of 20121011

Provided by
Nyambi Nyambi
in D.C. Office of Zoning

441 4th St NW
Washington DC, 20001, USA

phone: (202) 727-0314
hours: 10 am - 5 pm