# Building permits at 836 Walnut St E, Boulder, CO

One permit on record here. The newest, Jul 6: Replace existing a/c system with a new 3 ton. 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 |
|---|---|---|---|---|
| Jul 6, 2026 | Mechanical (HVAC) | Replace existing a/c system with a new 3 ton, 16 SEER a/c system 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  | $9,523 | [MEC2026-01105](https://nearbypermits.com/boulder/permit/MEC2026-01105/) |

## More on this street

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

- [812 Walnut St E](https://nearbypermits.com/boulder/address/812-walnut-st-e/): newest permit Nov 24, 2025

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 15:58 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/836-walnut-st-e/