# Mechanical (HVAC) permit MEC2026-01765 at 3663 Silverton St, Boulder

Boulder Planning and Development Services permit MEC2026-01765: issued Sep 18, 2026 for mechanical (hvac) work at 3663 Silverton St. REVISION 9/21/26-Replacement furnace, heat pump x 2 replacing air conditioners, and associated electrical. Install tankless water heater replacing tank style unit. Replacement furnace, heat pump x 2 replacing air conditioners, and associated electrical. 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: MEC2026-01765
- Issued: Sep 18, 2026
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical with Electrical)
- Status: Issued (city: Issued)
- Reported cost: $30,517
- ZIP code: 80301
- All permits at this address: https://nearbypermits.com/boulder/address/3663-silverton-st/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 08:22 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 3663 Silverton St: https://nearbypermits.com/boulder/address/3663-silverton-st/