# Mechanical (HVAC) permit MEC2026-01133 at 537 Blackhawk Rd, Boulder

Boulder Planning and Development Services permit MEC2026-01133: issued Jul 9, 2026 for mechanical (hvac) work at 537 Blackhawk Rd. Install new 4 ton variable capacity heat pump to replace existing 3.5 ton AC. Will work with existing furnace and thermostat. We will need to upgrade the circuit to the outdoor unit from a 2 pole 30 amp to a 2 pole 60 amp. Doing this will require an electrical service upgrade, System Components: 1× Lennox Elite Series Heat Pump 4/ (5 Ton) - EL18KSLV-060 1× Lennox Indoor Coil - CK40CT-48C-71 Electrical Upgrades: Service Upgrade to 200 Amps New Circuit ran for Heat Pump 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: MEC2026-01133
- Issued: Jul 9, 2026
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical with Electrical)
- Status: Finished (city: Letter of Completion)
- Reported cost: $16,725
- ZIP code: 80303
- All permits at this address: https://nearbypermits.com/boulder/address/537-blackhawk-rd/

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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 12:37 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 537 Blackhawk Rd: https://nearbypermits.com/boulder/address/537-blackhawk-rd/