VOID- 180 Days no activity Replacing existing cooling tower
Mechanical (HVAC) at 3333 Walnut St, Boulder
Boulder Planning and Development Services permit MEC2025-01889: issued Nov 17, 2025 for mechanical (hvac) work at 3333 Walnut St. VOID- 180 Days no activity Replacing existing cooling tower. 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. Any electrical work required beyond a like-for-like replacement of equipment will require an electrical permit for inspection of the electrical scope.
- Permit number
- MEC2025-01889
- Issued
- Type of work
- Mechanical (HVAC)
- Status
- Cancelled
- Reported cost
- $240,000
- ZIP code
- 80301
- City's category
- Mechanical Permit, Mechanical HVAC/Solar
- City's status
- Void
- Source
- Boulder Planning and Development Services permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 3333 Walnut St, and what's permitted nearby
Boulder Planning and Development Services updated its data Oct 5, 2026. We checked it Oct 6, 07:21 UTC. See the city's official records.
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