DC Department of Buildings (DOB)
AI-researched from the official website · pending reviewer verification- Address
- 1100 4th Street SW, Washington, DC 20024
- Phone
- (202) 671-3500
- Hours
- Walk-in Center: Monday, Tuesday, Wednesday, Friday 8:30 am - 4:00 pm; Thursday 9:30 am - 4:00 pm
- Online portal
- dob.dc.gov/page/permit-resources
- Building code
- 2017 DC Construction Codes (2015 ICC model codes and 2014 NEC, as amended by Title 12 DCMR), effecti…
- Jurisdiction
- City in District of Columbia County · DC Metro metro
Researched October 13, 2026 from the office's official website. Offices change hours and fees; confirm before you visit. See an error? Report it.
Permit types issued
This office issues some permits instantly or the same day.
- Building Permit (alteration and repair / new construction / additions)
- Building Permit - Homeowner's Center (small one/two-family projects)
- Demolition / Raze
- Electrical Permit
- Gas Fitting Permit
- Instant Permit (building)
- Mechanical / HVAC Permit
- Plumbing Permit
- Roofing (repair/replacement under Building Permit)
Fees, review times and which of these your project needs are in the .