# Mechanical (HVAC) permit MEC2026-01630 at 305 Evergreen Ave, Boulder

Boulder Planning and Development Services permit MEC2026-01630: issued Sep 24, 2026 for mechanical (hvac) work at 305 Evergreen Ave. 1x Mitsubishi Outdoor Unit - MXZ-SM42NLHZ - Roof 2x Mitsubishi Floor Mounted - MFZ-KX09NL - Primary Bedroom & SW Main Level Bedroom 2× Mitsubishi Ceiling Cassette - MLZ-KX06NL - Upstairs Bedroom 2× Mitsubishi Grille Unit - MLP-448WU - Ceiling Cassette Face Plates 1x Mitsubishi Wall Mounted - MSZ-FX15NL - Living Room 1× Mitsubishi Branch Box - PAC-LMA50BC - Location TBD 1× Mitsubishi Branch Box Enclosure Unit - BBE-1 HVAC Scope: Install one (1) Mitsubishi multi-zone outdoor heat pump -Install four (5) Mitsubishi ductless indoor units in the following locations: -Primary Bedroom: One (1) Floor-Mounted unit (MFZ-KX09NL). -Main Level SW Bedroom: One (1) Floor-Mounted unit (MFZ-KX09NL). -Upstairs Bedrooms: Two (2) Ceiling Cassette units (MLZ-KX06NL) with grilles. -Living Room: One (1) Wall-Mounted unit (MSZ-FX15NL). -Run and connect five (5) sets of refrigerant piping from the indoor units to the branch box, installing up to 100 ft of lineset hide to protect and conceal exterior lines. -Perform pressure testing, vacuum, standard system startup, and commissioning. Complete a final walkthrough and system tutorial with the homeowner We will coordinate a crane rental for removal of the existing swamp cooler and then set new heat pump at the existing 'flat-roof' location. Electrical Scope: -(1) dedicated 230V 45A electrical circuit with disconnect and GFCI for the new roof-mounted heat pump system. -Ensure all new electrical work meets local code requirements for the City of Boulder. 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: MEC2026-01630
- Issued: Sep 24, 2026
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical with Electrical)
- Status: Issued (city: Issued)
- Reported cost: $38,509
- ZIP code: 80304
- All permits at this address: https://nearbypermits.com/boulder/address/305-evergreen-ave/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 11:20 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 305 Evergreen Ave: https://nearbypermits.com/boulder/address/305-evergreen-ave/