# Mechanical (HVAC) permit MEC2026-00110 at 1803 Mapleton Ave, Boulder

Boulder Planning and Development Services permit MEC2026-00110: issued Jan 21, 2026 for mechanical (hvac) work at 1803 Mapleton Ave. System Size: 54K BTUs System Components: (1) Mitsubishi HiWall - MSZ-GX24NL (1) Mitsubishi Ceiling Cassette - MLZKX12NL (1) Mitsubishi Ceiling Cassette - MLZKX18NL (1) Mitsubishi HiWall - MSZ-GX06NL (1) Mitsubishi Outdoor Unit - MXZSM48NLHZ (1) Mitsubishi Branch Box - PACLMA50BC Electrical Upgrades: New circuit to ODU PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitate the inspection process, please provide photographic evidence of the pressure test directly to the assigned inspector on the day the rough mechanical inspection is scheduled. Approved tests: 10 ft water test, 5 PSI positive pressure, or Negative 5 psi air pressure test for 15 Minutes.

- Permit number: MEC2026-00110
- Issued: Jan 21, 2026
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical with Electrical)
- Status: Finished (city: Letter of Completion)
- Reported cost: $35,596
- ZIP code: 80304
- All permits at this address: https://nearbypermits.com/boulder/address/1803-mapleton-ave/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 09:52 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 1803 Mapleton Ave: https://nearbypermits.com/boulder/address/1803-mapleton-ave/