# Building permits at 2431 Mapleton Ave, Boulder, CO

One permit here in the last two years. The newest, Dec 3, 2024: Install a Williams 6501522A Vented console heater Install a Williams 2102 blower assembly Install a P322016. 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 3, 2024 | Mechanical (HVAC) | Install a Williams 6501522A Vented console heater Install a Williams 2102 blower assembly Install a P322016 millivolt thermostat Confirm flue is going all the way up or into a lined chimney. If not will need to install 5" flue line kit Connect to existing gas, replace gas cock. | $3,259 | [MEC2024-01751](https://nearbypermits.com/boulder/permit/MEC2024-01751/) |

## More on this street

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

- [2436 Mapleton Ave](https://nearbypermits.com/boulder/address/2436-mapleton-ave/): newest permit Oct 22, 2025
- [2475 Mapleton Ave](https://nearbypermits.com/boulder/address/2475-mapleton-ave/): newest permit Nov 18, 2025
- [2344 Mapleton Ave](https://nearbypermits.com/boulder/address/2344-mapleton-ave/): newest permit Nov 21, 2025
- [2537 Mapleton Ave](https://nearbypermits.com/boulder/address/2537-mapleton-ave/): newest permit Dec 6, 2024
- [2321 Mapleton Ave](https://nearbypermits.com/boulder/address/2321-mapleton-ave/): newest permit Nov 24, 2025
- [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
- [2576 Mapleton Ave](https://nearbypermits.com/boulder/address/2576-mapleton-ave/): newest permit Mar 10, 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 02:12 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/2431-mapleton-ave/