# Building permits at 640 S 44th St, Boulder, CO

Two permits here in the last two years. The newest, Jul 1: 4 ton electric heat pump installation replacing an existing gas furnace. 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 1, 2026 | Mechanical (HVAC) | 4 ton electric heat pump installation replacing an existing gas furnace. The gas line will be capped at the removed furnace location. Need to disconnect the electrical from the old HVAC and connect it to the new HVAC. PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plas | $17,935 | [MEC2026-01076](https://nearbypermits.com/boulder/permit/MEC2026-01076/) |
| Dec 16, 2024 | Electrical | Install replacement 200 amp service upgrade panel | $6,200 | [ELE2024-01042](https://nearbypermits.com/boulder/permit/ELE2024-01042/) |

## More on this street

Other addresses on S 44th St with permits, nearest house number first:

- [630 S 44th St](https://nearbypermits.com/boulder/address/630-s-44th-st/): newest permit Apr 13, 2026
- [655 S 44th St](https://nearbypermits.com/boulder/address/655-s-44th-st/): newest permit May 22, 2025
- [605 S 44th St](https://nearbypermits.com/boulder/address/605-s-44th-st/): newest permit Mar 26, 2026
- [725 S 44th St](https://nearbypermits.com/boulder/address/725-s-44th-st/): newest permit May 28, 2026
- [740 S 44th St](https://nearbypermits.com/boulder/address/740-s-44th-st/): newest permit Jun 25, 2025
- [535 S 44th St](https://nearbypermits.com/boulder/address/535-s-44th-st/): newest permit Jun 25, 2026
- [760 S 44th St](https://nearbypermits.com/boulder/address/760-s-44th-st/): newest permit Jun 2, 2025
- [450 S 44th St](https://nearbypermits.com/boulder/address/450-s-44th-st/): newest permit Aug 24, 2026
- [440 S 44th St](https://nearbypermits.com/boulder/address/440-s-44th-st/): newest permit Jan 9, 2025
- [405 S 44th St](https://nearbypermits.com/boulder/address/405-s-44th-st/): newest permit Sep 14, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 01:55 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Both permits at this address: https://nearbypermits.com/boulder/address/640-s-44th-st/