ALTERATION and ADDITION to an existing 2-story plus basement
Addition at 4501 Harrison St NW, Washington
DC Department of Buildings permit B2603423: issued Jul 9, 2026 for addition work at 4501 Harrison St NW. ALTERATION and ADDITION to an existing 2-story plus basement, detached single family dwelling (no change in use). Demolish existing front porch, rear-deck and entire existing roof. Add 3rd floor addition on top of existing 2nd floor. Add rear addition (3-stories plus basement) and add front addition (3-stories plus basement) All new MEP, build new kitchen plus 5-1/2 bathrooms. Incl. accessory dwelling in basement.
- Permit number
- B2603423
- Issued
- Type of work
- Addition
- Status
- Issued
- Reported cost
- Not listed
- ZIP code
- 20015
- City's category
- Construction, addition alteration repair
- City's status
- Permit issued
- Source
- DC Department of Buildings permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 4501 Harrison St NW, and what's permitted nearby
The newest permit in the city's data is from Sep 28, 2026, 8 days ago. Permits issued after that won't appear here until the city publishes them.
DC Department of Buildings updated its data Oct 5, 2026. We checked it Oct 6, 08:44 UTC. See the city's official records (CC BY 4.0).
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