Renovation of an existing 2 story townhouse into a 2 unit building
Addition at 418 Warner St NW, Washington
DC Department of Buildings permit B2600484: issued Aug 5, 2026 for addition work at 418 Warner St NW. Renovation of an existing 2 story townhouse into a 2 unit building. The project includes demolition off part of internal walls and roof. The front fa?ade, including the porch, rear wall, as well as the party walls, will be retained. A vertical addition will be constructed, resulting in a 3 story building. The existing foundation will also be underpinned to provide a cellar.
- Permit number
- B2600484
- Issued
- Type of work
- Addition
- Status
- Issued
- Reported cost
- Not listed
- ZIP code
- 20001
- 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 418 Warner St NW, and what's permitted nearby
DC Department of Buildings updated its data Oct 5, 2026. We checked it Oct 5, 17:04 UTC. See the city's official records (CC BY 4.0).
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