# Mechanical (HVAC) permit MEC2021-01921 at 3981 Promontory Ct, Boulder

Boulder Planning and Development Services permit MEC2021-01921: issued Sep 27, 2021 for mechanical (hvac) work at 3981 Promontory Ct. Forced Air Furnace Air-to-Air Annual Fuel Utilization Efficiency (AFUE) 99, 90000 BTU, Natural Gas, Interior, Replacement. Central Air Conditioning Seasonal Energy Efficiency Ratio (SEER) 20, 36000 BTU, Natural Gas, Exterior, Replacement.

- Permit number: MEC2021-01921
- Issued: Sep 27, 2021
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical HVAC/Solar)
- Status: Finished (city: Letter of Completion)
- Reported cost: $14,599
- ZIP code: 80304
- All permits at this address: https://nearbypermits.com/boulder/address/3981-promontory-ct/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-11 00:32 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 3981 Promontory Ct: https://nearbypermits.com/boulder/address/3981-promontory-ct/