# Building permits at 625 Mapleton Ave, Boulder, CO

One permit here in the last two years. The newest, Feb 18: Boiler only replacement. 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 |
|---|---|---|---|---|
| Feb 18, 2026 | Mechanical (HVAC) | boiler only replacement. no modifications to existing lines or vent NO EXTERNAL WORK PERMITTED 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 pro | $15,000 | [MEC2026-00259](https://nearbypermits.com/boulder/permit/MEC2026-00259/) |

## More on this street

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

- [642 Mapleton Ave](https://nearbypermits.com/boulder/address/642-mapleton-ave/): newest permit May 19, 2026
- [553 Mapleton Ave](https://nearbypermits.com/boulder/address/553-mapleton-ave/): newest permit Jan 29, 2025
- [704 Mapleton Ave](https://nearbypermits.com/boulder/address/704-mapleton-ave/): newest permit Jan 7, 2026
- [707 Mapleton Ave](https://nearbypermits.com/boulder/address/707-mapleton-ave/): newest permit Mar 12, 2025
- [712 Mapleton Ave](https://nearbypermits.com/boulder/address/712-mapleton-ave/): newest permit Mar 9, 2026
- [720 Mapleton Ave](https://nearbypermits.com/boulder/address/720-mapleton-ave/): newest permit Apr 9, 2025
- [520 Mapleton Ave](https://nearbypermits.com/boulder/address/520-mapleton-ave/): newest permit Jan 14, 2025
- [501 Mapleton Ave](https://nearbypermits.com/boulder/address/501-mapleton-ave/): newest permit Nov 18, 2024
- [433 Mapleton Ave](https://nearbypermits.com/boulder/address/433-mapleton-ave/): newest permit Jan 26, 2026
- [417 Mapleton Ave B](https://nearbypermits.com/boulder/address/417-mapleton-ave-b/): newest permit Oct 15, 2024

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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 12:04 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/625-mapleton-ave/