# Building permits at 812 Walnut St E, Boulder, CO

One permit on record here. The newest, Nov 24, 2025: Replacement air handler and evaporator coil PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING. 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 |
|---|---|---|---|---|
| Nov 24, 2025 | Mechanical (HVAC) | Replacement air handler and evaporator coil 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 pressure test dir | $10,409 | [MEC2025-02096](https://nearbypermits.com/boulder/permit/MEC2025-02096/) |

## More on this street

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

- [836 Walnut St E](https://nearbypermits.com/boulder/address/836-walnut-st-e/): newest permit Jul 6, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 12:06 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/812-walnut-st-e/