Zoning regulations of 1958. These are zoning regulations as they existed until August 2016, when the new zoning regulations of 2016 went into effect. The layer displays the last boundaries listed in the 1958 regulations and is provided for historical and reference purposes only. Explore the new boundaries here, https://maps.dcoz.dc.gov/zr16.

District of Columbia zoning map polygons established under the Zoning Regulations of 2016 (ZR16). ZR16 superseded the Zoning Regulations of 1958 (ZR58), effective 9/6/2016. ZR16 has been reorganized further pursuant to Zoning Commission Order 18-16/19-27/19-27A/19-27B (text and map amendment), effective 8/28/2023. ZR16 zoning polygons are updated based on Zoning Commission text and map amendments, when applicable. More information on zoning in DC, the Zoning Commission, or the zoning rules and regulations can be found at https://dcoz.dc.gov/page/structure-zoning-regulations-2016.

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.

Overlay Districts are a zoning designation that modifies the basic underlying designation in some specific manner; this is what the Overlay polygons in the Zoning map represent. This layer contains complete theoretical address ranges. Overlay zoning modifies the standards of the base zoning within a defined geographic area. This retired dataset represents the boundaries of the overlay areas under the Zoning Regulations of 1958.***Retired 9/27/2019***

Zoning Downtown Subareas. The review of the Zoning Regulations of 1958, as amended, was a project that began in 2007. The new Zoning Regulations of 2016 were published on March 4, 2016 and effective on September 6, 2016.The purposes of the Downtown (D) zones (D-1-R, D-2, D-3, D-4, D-4-R, D-5,D-5-R, D-6, D-6-R, D-7, and D-8) are to provide for the orderly development and use of land and structures in areas the Comprehensive Plan generally characterized as:(a) Central Washington; or(b) Appropriate for a high-density mix of office, retail, service, residential, entertainment, lodging, institutional, and other uses, often grouped into neighborhoods with distinct identities.Detailed information at http://dcoz.dc.gov.

This map allows users to see how the zone boundaries and names converted from the 1958 Zoning Regulations to the Zoning Regulations of 2016.

The review of the Zoning Regulations of 1958, as amended, was a project that began in 2007. The new Zoning Regulations of 2016 were published on March 4, 2016 and effective on September 6, 2016.The purposes of the Downtown (D) zones (D-1-R, D-2, D-3, D-4, D-4-R, D-5,D-5-R, D-6, D-6-R, D-7, and D-8) are to provide for the orderly development and use of land and structures in areas the Comprehensive Plan generally characterized as:(a) Central Washington; or(b) Appropriate for a high-density mix of office, retail, service, residential, entertainment, lodging, institutional, and other uses, often grouped into neighborhoods with distinct identities.Detailed information at http://dcoz.dc.gov.

A 5 meter buffered boundary created from the Zoning Downtown Designated Streets lines. The data was designed to intersect with the neighboring lots along each segment of the designated streets.The review of the Zoning Regulations of 1958, as amended, was a project that began in 2007. The new Zoning Regulations of 2016 were published on March 4, 2016 and effective on September 6, 2016.The purposes of the Downtown (D) zones (D-1-R, D-2, D-3, D-4, D-4-R, D-5,D-5-R, D-6, D-6-R, D-7, and D-8) are to provide for the orderly development and use of land and structures in areas the Comprehensive Plan generally characterized as:(a) Central Washington; or(b) Appropriate for a high-density mix of office, retail, service, residential, entertainment, lodging, institutional, and other uses, often grouped into neighborhoods with distinct identities.Detailed information at http://dcoz.dc.gov.Created as part of the Zoning Regulations of 2016. Effective September 6, 2016 per Zoning Commission Order 08-06A https://app.dcoz.dc.gov/Content/Search/ViewCaseReport.aspx?case_id=08-06A

Credit Trade Areas exist only in the Downtown Zones in the 2016 Zoning Regulations and are generated by the development of residential, arts, or preferred uses and may also be generated on historic properties through conservation efforts. Credits can also be used/converted/or generated under specified circumstances if the properties were eligible for Transferable Development Rights (TDR) or Combined Lot Development (CLD) under the 1958 Zoning Regulations.