Georgetown Historic District Replacement of building sprinkler system with upgraded sprinkler valves and boxes
Fire systems at 3700 O St NW, Washington
DC Department of Buildings permit B2605209: issued Jun 23, 2026 for fire systems work at 3700 O St NW. Georgetown Historic District Replacement of building sprinkler system with upgraded sprinkler valves and boxes, replacement of existing sprinkler heads, and installation of 2-hour fire-rated wall enclosures and hatches on the first, second, third, and fourth floors. Minor repair to finishes to support upgrade. Area affected: 13803 SF.
- Permit number
- B2605209
- Issued
- Type of work
- Fire systems
- 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 5, 2026. We checked it Oct 5, 12:05 UTC. Official data, CC BY 4.0.
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