# Building permits at 2465 Walnut St 1, Boulder, CO

Two permits here in the last two years. The newest, Jun 9: MITSUBISHI SINGLE ZONE 9K BTU MINI SPLIT SYSTEM replacement PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL. 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 |
|---|---|---|---|---|
| Jun 9, 2026 | Mechanical (HVAC) | MITSUBISHI SINGLE ZONE 9K BTU MINI SPLIT SYSTEM replacement 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 p | $3,896 | [MEC2026-00919](https://nearbypermits.com/boulder/permit/MEC2026-00919/) |
| Jul 28, 2025 | Mechanical (HVAC) | Voided for inactivity - no inspections for 180 days Add new mini split system for upstairs bedroom outdoor unit to sit on the roof by the existing unit for the house indoor wall mounted with remote control | $9,942 | [MEC2025-01184](https://nearbypermits.com/boulder/permit/MEC2025-01184/) |

## 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
- [2455 Walnut St](https://nearbypermits.com/boulder/address/2455-walnut-st/): newest permit Sep 30, 2025
- [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
- [2590 Walnut St](https://nearbypermits.com/boulder/address/2590-walnut-st/): newest permit Sep 15, 2026
- [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
- [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

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 05:18 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Both permits at this address: https://nearbypermits.com/boulder/address/2465-walnut-st-1/