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DC Office of Zoning

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OCTO is aware of the global issue with CrowdStrike’s update impacting Windows servers and computers. CrowdStrike has identified the issue and a fix. We are supporting District agencies to ensure operations continue. At this time, District operations are not experiencing major impacts.

Interactive Zoning Information System

The Interactive Zoning Information System (IZIS) allows online case filing, viewing, processing, and management of ZC and BZA cases. All case types must now be filed using this system.

Zoning Handbook

The Zoning Handbook is a comprehensive electronic handbook designed to assist the public in understanding the details of the new Zoning Regulations of 2016. 

Official Zoning Map

Use the Official Zoning Map of the District of Columbia to look up the zone district designation for any property in the District.

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DC Office of Zoning

DC Office of Zoning
Office Hours
Monday to Friday, 8:30 am to 5:00 pm, except District holidays

Connect With Us
441 4th Street, NW, Suite 200S, Washington, DC 20001
Phone: (202) 727-6311
Fax: (202) 727-6072
TTY: 711
Email: [email protected]

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The Executive Building

The Executive Building
1030 15th Street, NW, Washington, DC, 20005


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