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Department of Buildings

In observance of Juneteeth, DOB will be closed on Thursday, June 19, 2025; no construction will be allowed on this day without an after-hours permit. You may report illegal construction here or by calling 311. 

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Zoning Administrator Interpretation 1: Roof Membrane and Building Height


Tuesday, October 1, 2019
Reference: 
ZA-001:

Interpretation ZA-001: Roof Membrane and Building Height is superseded by D.C. Municipal Regulations Title 11, Subtitle C, Section 1504.2(b) and Subtitle B, Section 306.7.