# Building permits at 2455 Walnut St, Boulder, CO

One permit on record here. The newest, Sep 30, 2025: Installing mini-split system with one head All new plastic glued vents for fuel burning appliances must. 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 |
|---|---|---|---|---|
| Sep 30, 2025 | Mechanical (HVAC) | Installing mini-split system with one head 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 inspect | $15,714 | [MEC2025-01597](https://nearbypermits.com/boulder/permit/MEC2025-01597/) |

## More on this street

Other addresses on Walnut St with permits, nearest house number first:

- [2463 Walnut St](https://nearbypermits.com/boulder/address/2463-walnut-st/): newest permit May 21, 2026
- [2465 Walnut St 1](https://nearbypermits.com/boulder/address/2465-walnut-st-1/): newest permit Jun 9, 2026
- [2408 Walnut St](https://nearbypermits.com/boulder/address/2408-walnut-st/): newest permit Oct 14, 2025
- [2401 Walnut St 7](https://nearbypermits.com/boulder/address/2401-walnut-st-7/): newest permit Nov 15, 2024
- [2345 Walnut St](https://nearbypermits.com/boulder/address/2345-walnut-st/): newest permit Dec 12, 2025
- [2340 Walnut St](https://nearbypermits.com/boulder/address/2340-walnut-st/): newest permit Sep 18, 2025
- [2333 Walnut St](https://nearbypermits.com/boulder/address/2333-walnut-st/): newest permit Aug 22, 2025
- [2590 Walnut St](https://nearbypermits.com/boulder/address/2590-walnut-st/): newest permit Sep 15, 2026
- [2317 Walnut St](https://nearbypermits.com/boulder/address/2317-walnut-st/): newest permit Jul 31, 2025
- [2315 Walnut St](https://nearbypermits.com/boulder/address/2315-walnut-st/): newest permit May 13, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 07:28 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/2455-walnut-st/