Detached single-family home - Underpinning an existing crawlspace to form a media room and kitchenette
Alteration or repair at 3408 20th St NE, Washington
DC Department of Buildings permit B2603124: issued May 14, 2026 for alteration or repair work at 3408 20th St NE. Detached single-family home - Underpinning an existing crawlspace to form a media room and kitchenette. Relocate the existing staircase to accommodate the new space. Extend the existing joists on the first floor to frame the new staircase. Replace several load-bearing posts in the crawlspace with structural beams. New mini-split HVAC system to serve the new basement space. New window well. New insulation, drywall, electrical, and plumbing to finish the space. Total area affected 528 SF.
- Permit number
- B2603124
- Issued
- Type of work
- Alteration or repair
- Status
- Issued
- Reported cost
- Not listed
- ZIP code
- 20018
- City's category
- Construction, alteration and 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 3408 20th St NE, and what's permitted nearby
DC Department of Buildings updated its data Oct 5, 2026. We checked it Oct 5, 17:51 UTC. See the city's official records (CC BY 4.0).
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