Subtitle 12-E DCMR, mechanical code supplement of 2021
Mechanical (HVAC) at 4912 New Hampshire Ave NW, Washington
DC Department of Buildings permit MVQ2600030: issued May 11, 2026 for mechanical (hvac) work at 4912 New Hampshire Ave NW. Subtitle 12-E DCMR, mechanical code supplement of 2021, is amended as follows: IMC - 2021 Article 1109.3.2 Refrigerant pipes shafts using group "A2L" or "B2L" refrigerant shall be naturally or mechanically ventilated. Please see attachment M-1.
- Permit number
- MVQ2600030
- Issued
- Type of work
- Mechanical (HVAC)
- Status
- Issued
- Reported cost
- Not listed
- ZIP code
- 20011
- City's category
- Construction, variance
- 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 4912 New Hampshire Ave NW, and what's permitted nearby
DC Department of Buildings updated its data Oct 8, 2026. We checked it Oct 8, 20:55 UTC. See the city's official records (District of Columbia, CC BY 4.0).
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