# Building permits at 1655 Walnut St 309, Boulder, CO

One permit on record here. The newest, Oct 30, 2025: REPLACE CU & FCU in #309 All new plastic glued vents for fuel burning appliances must undergo pressure testing. 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 |
|---|---|---|---|---|
| Oct 30, 2025 | Mechanical (HVAC) | REPLACE CU & FCU in #309 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 inspection is scheduled.  | $12,900 | [MEC2025-01473](https://nearbypermits.com/boulder/permit/MEC2025-01473/) |

## Zoning requests nearby

We don't list zoning cases for Boulder yet. Look them up on the city's Board of Zoning Adjustment page: https://bouldercolorado.gov/government/board-commission/board-zoning-adjustment

## More on this street

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

- [1634 Walnut St C](https://nearbypermits.com/boulder/address/1634-walnut-st-c/): newest permit Sep 24, 2026
- [1620 Walnut St](https://nearbypermits.com/boulder/address/1620-walnut-st/): newest permit May 13, 2025
- [1603 Walnut St](https://nearbypermits.com/boulder/address/1603-walnut-st/): newest permit Jul 20, 2026
- [1707 Walnut St 106](https://nearbypermits.com/boulder/address/1707-walnut-st-106/): newest permit May 28, 2026
- [1708 Walnut St](https://nearbypermits.com/boulder/address/1708-walnut-st/): newest permit Feb 21, 2025
- [1726 Walnut St](https://nearbypermits.com/boulder/address/1726-walnut-st/): newest permit Oct 17, 2025
- [1734 Walnut St](https://nearbypermits.com/boulder/address/1734-walnut-st/): newest permit Oct 2, 2025
- [1743 Walnut St](https://nearbypermits.com/boulder/address/1743-walnut-st/): newest permit Apr 15, 2025
- [1545 Walnut St](https://nearbypermits.com/boulder/address/1545-walnut-st/): newest permit Jun 9, 2025
- [1802 Walnut St](https://nearbypermits.com/boulder/address/1802-walnut-st/): newest permit Oct 24, 2024

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-09 04:59 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/1655-walnut-st-309/