City guides

Washington, DC building permits & contractor rules

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Permit officeDC Department of Buildings (DOB)
Address1100 4th Street SW, Washington, DC 20024 (Walk-In Center, 2nd floor)
HoursMon–Wed and Fri 8:30 am–4:00 pm; Thu 9:30 am–4:00 pm
Phone(202) 671-3500
Fee scheduleBuilding permit fee schedule
Typical timelinesDOB service level: 30 business days for an initial permit review, 15 business days for a re-review (source)
Our data sourceOpen Data DC: Building Permits (DC Department of Buildings)

Contractor licensing

  • City: General Contractor/Construction Manager and Home Improvement Contractor licenses from DLCP (apply online at BOSS); requirements include a Certificate of Liability Insurance and a Clean Hands certificate. (source)

Bonding & insurance

  • Home Improvement Contractors: $25,000 surety bond plus a Certificate of Liability Insurance; General Contractors: Certificate of Liability Insurance. (source)

Notable local rules

  • Construction is allowed 7 am–7 pm Monday–Saturday, never on Sundays or holidays; neighbor notification is required before underpinning, excavation or party-wall work (12 DCMR 3307). (source)

Last checked Oct 2026. Lead count generated Oct 14, 2026 18:40 UTC from our live database. This page is for information only and is not legal advice. Requirements change: always verify with the city and state agencies linked here before bidding or starting work.