# Building permits at 854 Walnut St 11, Boulder, CO

Five permits on record here. The newest, Aug 12, 2025: *Voided for inactivity - no inspections for 180 days* Replace existing equipment with Armstrong - AC & Air. 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 |
|---|---|---|---|---|
| Aug 12, 2025 | Mechanical (HVAC) | *Voided for inactivity - no inspections for 180 days* Replace existing equipment with Armstrong - AC & Air Handler - Ducted. | $15,444 | [MEC2025-01215](https://nearbypermits.com/boulder/permit/MEC2025-01215/) |
| Jul 12, 2023 | Electrical | *Voided for inactivity - no inspections within 180 days* Run new 240v circuit and install disconnect for mini split | $1,072 | [ELE2023-00674](https://nearbypermits.com/boulder/permit/ELE2023-00674/) |
| Jul 11, 2023 | Mechanical (HVAC) | *Voided for inactivity - no inspections within 180 days* Installation Ductless heating | $5,590 | [MEC2023-00968](https://nearbypermits.com/boulder/permit/MEC2023-00968/) |
| Apr 25, 2012 | Plumbing | Replacement of an existing tub/shower combo with a shower as part of a bathroom remodel | $1,834 | [PMT2012-01962-PLB](https://nearbypermits.com/boulder/permit/PMT2012-01962-PLB/) |
| Sep 30, 2008 | Electrical | Add power outlet for ice melting equipment | $980 | [PMT2008-04324-ELE](https://nearbypermits.com/boulder/permit/PMT2008-04324-ELE/) |

## More on this street

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

- [848 Walnut St](https://nearbypermits.com/boulder/address/848-walnut-st/): newest permit Jun 22, 2026
- [824 Walnut St 46](https://nearbypermits.com/boulder/address/824-walnut-st-46/): newest permit Sep 9, 2026
- [812 Walnut St](https://nearbypermits.com/boulder/address/812-walnut-st/): newest permit Sep 28, 2026
- [790 Walnut St B](https://nearbypermits.com/boulder/address/790-walnut-st-b/): newest permit Oct 27, 2025
- [921 Walnut St](https://nearbypermits.com/boulder/address/921-walnut-st/): newest permit Aug 5, 2026
- [770 Walnut St B](https://nearbypermits.com/boulder/address/770-walnut-st-b/): newest permit Aug 12, 2026
- [760 Walnut St](https://nearbypermits.com/boulder/address/760-walnut-st/): newest permit Mar 27, 2026
- [750 Walnut St](https://nearbypermits.com/boulder/address/750-walnut-st/): newest permit Sep 28, 2026
- [711 Walnut St](https://nearbypermits.com/boulder/address/711-walnut-st/): newest permit Jun 3, 2026
- [1002 Walnut St](https://nearbypermits.com/boulder/address/1002-walnut-st/): newest permit Dec 10, 2025

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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 11:58 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 5 permits at this address: https://nearbypermits.com/boulder/address/854-walnut-st-11/