# Mechanical (HVAC) permit MEC2025-01473 at 1655 Walnut St 309, Boulder

Boulder Planning and Development Services permit MEC2025-01473: issued Oct 30, 2025 for mechanical (hvac) work at 1655 Walnut St 309. REPLACE CU & FCU in #309 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: MEC2025-01473
- Issued: Oct 30, 2025
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical HVAC/Solar)
- Status: Issued (city: Issued)
- Reported cost: $12,900
- ZIP code: 80302
- All permits at this address: https://nearbypermits.com/boulder/address/1655-walnut-st-309/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 23:09 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 1655 Walnut St 309: https://nearbypermits.com/boulder/address/1655-walnut-st-309/