Install Mitsubishi, Hyper Heat 3 Zone Mini Split System
Alteration or repair at 434 Chelsea St, Boston
Boston Inspectional Services Department permit SF1820284: issued Mar 13, 2026 for alteration or repair work at 434 Chelsea St. Install Mitsubishi, Hyper Heat 3 Zone Mini Split System, 30k Heat Pump/Condenser on the Rooftop and the following Wall Mounted Units, 15k Main Office, 9k Kitchen and 6k for Smaller Office. Replacing existing Equipment.
- Permit number
- SF1820284
- Issued
- Type of work
- Alteration or repair
- Status
- Issued
- Reported cost
- $25,000
- ZIP code
- 02128
- City's category
- Interior/Exterior Work, Short Form Bldg Permit
- City's status
- Open
- Source
- Boston Inspectional Services Department 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 434 Chelsea St, and what's permitted nearby
Boston Inspectional Services Department updated its data Oct 5, 2026. We checked it Oct 6, 05:40 UTC. See the city's official records.
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