# Building permits at 650 S 40th St, Boulder, CO

One permit here in the last two years. The newest, Oct 8, 2024: VOID-NO INSPECTIONS WITHIN 180 DAYS Remove and replace 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 |
|---|---|---|---|---|
| Oct 8, 2024 | Mechanical (HVAC) | VOID-NO INSPECTIONS WITHIN 180 DAYS Remove and replace furnace. Add central AC | $4,207 | [MEC2024-01118](https://nearbypermits.com/boulder/permit/MEC2024-01118/) |

## More on this street

Other addresses on S 40th St with permits, nearest house number first:

- [625 S 40th St](https://nearbypermits.com/boulder/address/625-s-40th-st/): newest permit Aug 20, 2026
- [560 S 40th St](https://nearbypermits.com/boulder/address/560-s-40th-st/): newest permit Apr 10, 2025
- [545 S 40th St](https://nearbypermits.com/boulder/address/545-s-40th-st/): newest permit Sep 26, 2025
- [540 S 40th St](https://nearbypermits.com/boulder/address/540-s-40th-st/): newest permit Mar 31, 2026
- [525 S 40th St](https://nearbypermits.com/boulder/address/525-s-40th-st/): newest permit Apr 16, 2026
- [460 S 40th St](https://nearbypermits.com/boulder/address/460-s-40th-st/): newest permit Sep 17, 2025
- [455 S 40th St](https://nearbypermits.com/boulder/address/455-s-40th-st/): newest permit Apr 1, 2025
- [450 S 40th St](https://nearbypermits.com/boulder/address/450-s-40th-st/): newest permit Feb 19, 2026
- [375 S 40th St](https://nearbypermits.com/boulder/address/375-s-40th-st/): newest permit Jul 27, 2026
- [365 S 40th St](https://nearbypermits.com/boulder/address/365-s-40th-st/): newest permit Jul 14, 2025

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 19:31 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/650-s-40th-st/