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Department of Buildings

Beginning Monday, May 20, 2024, DOB’s Customer Service hours (live chat, telephone, and Walk-In Center) will be Monday, Tuesday, Wednesday, and Friday from 8:30 am-4:30 pm, with Thursday's hours from 9:30 am-4:30 pm. You may also email us at any time at [email protected] or use our online contact form. Thank you and we look forward to serving you. 

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Publications

E.g., 06/16/2024
E.g., 06/16/2024
02/28/2020

Section B-100.2, Definitions, define a “Court, Closed” as: 

ZA-016
02/28/2020

The current Zoning Regulations, DCMR Title 11, do not overtly address the regulation of signs.  However, the previous set of Zoning Regulations, also known as ZR 58, had the following Section reference that signs were

ZA-014
02/28/2020

As set forth in Subtitle B §§ 100.2 and 304.7 of the Zoning Regulations, an interior space of a building is considered to contain gross floor area [GFA] when it has structural headroom of 6 feet 6 inches or greater

ZA-019
02/28/2020

Applicants proposing to change the headroom of an existing basement or cellar with substandard but pre-existing structural headroom of over six feet, six inches (6 ft., 6 in.) must determine if such change constitutes an...

ZA-012
02/28/2020

Required parking spaces are required to be provided at a location that is specified under the following Section, 11 DCMR C-701.8: 

ZA-017
02/26/2020

IN 11 DCMR Subtitle U, Section U-253.7(a), the relevant table sets forth the minimum Gross Floor Area [GFA] required for a principal dwelling in order to have an accessory apartment use that is located in the principal...

ZA-020
10/01/2019

Interpretation ZA-005: Use of Parapet as Rooftop Deck Railings without Setback is superseded by D.C. Municipal Regulations Title 11, Subtitle C, Section 1504.2(a). 

ZA-005
10/01/2019

The razing or complete removal of a building has certain zoning consequences, [e.g.

ZA-010
10/01/2019

The Zoning Regulations are silent on bay window projections into yards and courts.  The Zoning Administrator has determined that they can be treated the same as cornices and eaves, so when cantilevered, bay windows may

ZA-003

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