# Building permits at 2321 Mapleton Ave, Boulder, CO

One permit here in the last two years. The newest, Nov 24, 2025: Replacement furnace, heat pump replacing an air conditioner. 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 furnace, heat pump replacing an air conditioner, and replacement water heater. 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 | $19,289 | [MEC2025-02098](https://nearbypermits.com/boulder/permit/MEC2025-02098/) |

## More on this street

Other addresses on Mapleton Ave with permits, nearest house number first:

- [2319 Mapleton Ave](https://nearbypermits.com/boulder/address/2319-mapleton-ave/): newest permit Nov 10, 2025
- [2318 Mapleton Ave](https://nearbypermits.com/boulder/address/2318-mapleton-ave/): newest permit Nov 6, 2024
- [2313 Mapleton Ave](https://nearbypermits.com/boulder/address/2313-mapleton-ave/): newest permit Aug 5, 2025
- [2303 Mapleton Ave](https://nearbypermits.com/boulder/address/2303-mapleton-ave/): newest permit Oct 7, 2025
- [2344 Mapleton Ave](https://nearbypermits.com/boulder/address/2344-mapleton-ave/): newest permit Nov 21, 2025
- [2236 Mapleton Ave](https://nearbypermits.com/boulder/address/2236-mapleton-ave/): newest permit Dec 10, 2025
- [2218 Mapleton Ave](https://nearbypermits.com/boulder/address/2218-mapleton-ave/): newest permit Feb 25, 2025
- [2213 Mapleton Ave B](https://nearbypermits.com/boulder/address/2213-mapleton-ave-b/): newest permit Jan 13, 2025
- [2431 Mapleton Ave](https://nearbypermits.com/boulder/address/2431-mapleton-ave/): newest permit Dec 3, 2024
- [2436 Mapleton Ave](https://nearbypermits.com/boulder/address/2436-mapleton-ave/): newest permit Oct 22, 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 20:50 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/2321-mapleton-ave/