# Mechanical (HVAC) permit MEC2025-00337 at 4129 St Croix St, Boulder

Boulder Planning and Development Services permit MEC2025-00337: issued Mar 6, 2025 for mechanical (hvac) work at 4129 St Croix St. Install Heat Pump: (1) Mitsubishi 12K BTU Wall-Mounted Unit - MSZ-GS12NA-U1 (2) Mitsubishi 6K BTU Concealed Ceiling Unit - MLZ-KY06NA-U1 (2) Mitsubishi Grille Unit - MLP-448WU (1) Mitsubishi 30K BTU Outdoor Unit - MXZ-3C30NAHZ4-U1 Electrical Scope: (1) Branch Circuit Connection.

- Permit number: MEC2025-00337
- Issued: Mar 6, 2025
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical with Electrical)
- Status: Finished (city: Letter of Completion)
- Reported cost: $30,639
- ZIP code: 80301
- All permits at this address: https://nearbypermits.com/boulder/address/4129-st-croix-st/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-13 08:04 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 4129 St Croix St: https://nearbypermits.com/boulder/address/4129-st-croix-st/