HPRB & CFA Riggs Distler, in conjunction with our structural subcontractor
Alteration or repair at 3700 O St NW, Washington
DC Department of Buildings permit B2507262: issued Oct 6, 2025 for alteration or repair work at 3700 O St NW. HPRB & CFA Riggs Distler, in conjunction with our structural subcontractor, has determined that underpinning is required at four locations due to the proximity of the buildings and the new piping installation trench excavation as shown on the drawings. Underpinning for four structures: 1) Guard House at 37th O ST 2) 3624 N ST 3)361/2 N ST 4) 1236 N ST.
- Permit number
- B2507262
- Issued
- Type of work
- Alteration or repair
- Status
- Issued
- Reported cost
- Not listed
- ZIP code
- 20057
- 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 3700 O St NW, and what's permitted nearby
DC Department of Buildings updated its data Oct 9, 2026. We checked it Oct 11, 03:27 UTC. See the city's official records (District of Columbia, CC BY 4.0).
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