# Building permits at 1860 Walnut St 10, Boulder, CO

One permit on record here. The newest, Dec 29, 2025: Replace 40 gallon WH like for like Any electrical work required beyond a like-for-like replacement of. 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 |
|---|---|---|---|---|
| Dec 29, 2025 | Mechanical (HVAC) | Replace 40 gallon WH like for like Any electrical work required beyond a like-for-like replacement of equipment will require an electrical permit for inspection of the electrical scope. PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burning | $2,732 | [MEC2025-02365](https://nearbypermits.com/boulder/permit/MEC2025-02365/) |

## 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:

- [1819 Walnut St](https://nearbypermits.com/boulder/address/1819-walnut-st/): newest permit Dec 10, 2025
- [1818 Walnut St](https://nearbypermits.com/boulder/address/1818-walnut-st/): newest permit Sep 16, 2026
- [1802 Walnut St](https://nearbypermits.com/boulder/address/1802-walnut-st/): newest permit Oct 24, 2024
- [1921 Walnut St](https://nearbypermits.com/boulder/address/1921-walnut-st/): newest permit Sep 2, 2025
- [1940 Walnut St 200](https://nearbypermits.com/boulder/address/1940-walnut-st-200/): newest permit Jan 27, 2025
- [1743 Walnut St](https://nearbypermits.com/boulder/address/1743-walnut-st/): newest permit Apr 15, 2025
- [1734 Walnut St](https://nearbypermits.com/boulder/address/1734-walnut-st/): newest permit Oct 2, 2025
- [1726 Walnut St](https://nearbypermits.com/boulder/address/1726-walnut-st/): newest permit Oct 17, 2025
- [2003 Walnut St](https://nearbypermits.com/boulder/address/2003-walnut-st/): newest permit Jul 2, 2026
- [1708 Walnut St](https://nearbypermits.com/boulder/address/1708-walnut-st/): newest permit Feb 21, 2025

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-09 01:51 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/1860-walnut-st-10/