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2016 Zoning Change Viewer

Published by Office of Zoning | District of Columbia | Metadata Last Checked: January 27, 2026 | Last Modified: 2021-06-17T15:07:45.000Z
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 Zoning Regulations of 2016 (ZR16) were originally developed out of a multi-year process to modernize the existing Zoning Regulations of 1958 (ZR58). This process began in 2007 and ultimately concluded with the Zoning Commission voting unanimously to adopt the new regulations and zoning map on January 14, 2016. ZR16 became effective on September 6, 2016.The Zoning Regulations of 2016 were further updated and reorganized by the Zoning Commission in Order No. 18-16/19-27-19-27B (link to case record). This order reorganized the regulations and reintroduced a base zone plus overlay naming convention for many zones. The ZR16 reorganization went into effect on August 25, 2023.

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