# Building permits at 345 Colgate Ave, Boulder, CO

One permit here in the last two years. The newest, Dec 17, 2025: Replace natural gas boiler Any electrical work required beyond a like-for-like replacement of equipment will. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Dec 17, 2025 | Mechanical (HVAC) | Replace natural gas boiler Any electrical work required beyond a like-for-like replacement of equipment will require an electrical permit for inspection of the electrical scope. PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burning applian | $17,758 | [MEC2025-02251](https://nearbypermits.com/boulder/permit/MEC2025-02251/) |

## More on this street

Other addresses on Colgate Ave with permits, nearest house number first:

- [325 Colgate Ave](https://nearbypermits.com/boulder/address/325-colgate-ave/): newest permit Aug 11, 2026
- [320 Colgate Ave](https://nearbypermits.com/boulder/address/320-colgate-ave/): newest permit Jun 3, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 13:24 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

The one permit at this address: https://nearbypermits.com/boulder/address/345-colgate-ave/