# Building permits at 2113 Walnut St 6b, Boulder, CO

One permit on record here. The newest, Sep 22, 2025: Voided for inactivity - no inspection within 180 days Install single zone mini split to 23.0 SEER2 (cooling. 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 22, 2025 | Mechanical (HVAC) | Voided for inactivity - no inspection within 180 days Install single zone mini split to 23.0 SEER2 (cooling efficiency) and 11.0 HSPF2 (heating efficiency) EER2 (Energy Efficiency Ratio 2): 14.55 All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitate the | $10,600 | [MEC2025-01557](https://nearbypermits.com/boulder/permit/MEC2025-01557/) |

## More on this street

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

- [2105 Walnut St 2a](https://nearbypermits.com/boulder/address/2105-walnut-st-2a/): newest permit Sep 9, 2026
- [2155 Walnut St](https://nearbypermits.com/boulder/address/2155-walnut-st/): newest permit May 7, 2026
- [2046 Walnut St](https://nearbypermits.com/boulder/address/2046-walnut-st/): newest permit Nov 12, 2024
- [2211 Walnut St](https://nearbypermits.com/boulder/address/2211-walnut-st/): newest permit Oct 14, 2025
- [2013 Walnut St](https://nearbypermits.com/boulder/address/2013-walnut-st/): newest permit Nov 5, 2024
- [2003 Walnut St](https://nearbypermits.com/boulder/address/2003-walnut-st/): newest permit Jul 2, 2026
- [2247 Walnut St](https://nearbypermits.com/boulder/address/2247-walnut-st/): newest permit Aug 26, 2026
- [1940 Walnut St 200](https://nearbypermits.com/boulder/address/1940-walnut-st-200/): newest permit Jan 27, 2025
- [1921 Walnut St](https://nearbypermits.com/boulder/address/1921-walnut-st/): newest permit Sep 2, 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 2026-10-08 02:54 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/2113-walnut-st-6b/