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Department of Buildings

Beginning Monday, April 8, 2024, DOB’s Customer Service hours (live chat, telephone, and Walk-In Center) will be Monday, Tuesday, Wednesday, and Friday from 8:30 am-12:00 pm and 1:00-4:30 pm, with Thursday's hours from 9:30 am-12:00 pm and 1:00-4:30 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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Welcome to the Department of Buildings

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Administrative Bulletins

Construction Codes

CC2021-001

Construction Codes Administrative Bulletin - Requirement to Report Unsafe and Emergency Conditions

CC2018-01

Construction Codes Administrative Bulletin – Master Tradesmen

CC2014-01

Green Building Program Manual - SUPERSEDED

CC2014-02

Green Building Program Manual

CC2015-01

Construction Codes Administrative Bulletin - Neighborhood Notice

Office of the Administrator – Notice of Emergency and Proposed Rulemaking – 12A DCMR Appendix N (Interior Signs)