# Building permits at 285 S 40th St, Boulder, CO

Two permits here in the last two years. The newest, Mar 25: VOID- Inspections not completed within 180 days 40 GAL 40K BTU WATER HEATER WARRANTY REPLACEMENT - LIKE FOR. 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 |
|---|---|---|---|---|
| Mar 25, 2026 | Mechanical (HVAC) | VOID- Inspections not completed within 180 days 40 GAL 40K BTU WATER HEATER WARRANTY REPLACEMENT - LIKE FOR LIKE 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 p | $1,500 | [MEC2026-00445](https://nearbypermits.com/boulder/permit/MEC2026-00445/) |
| Oct 29, 2025 | Mechanical (HVAC) | Replace upflow basement forced air furnace. All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitate the inspection process, please provide photographic evidence of the pressure test directly to the assigned inspector on the day the rough mechanical inspec | $5,300 | [MEC2025-01883](https://nearbypermits.com/boulder/permit/MEC2025-01883/) |

## More on this street

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

- [265 S 40th St](https://nearbypermits.com/boulder/address/265-s-40th-st/): newest permit Jul 28, 2026
- [310 S 40th St](https://nearbypermits.com/boulder/address/310-s-40th-st/): newest permit May 27, 2026
- [255 S 40th St](https://nearbypermits.com/boulder/address/255-s-40th-st/): newest permit Aug 4, 2025
- [320 S 40th St](https://nearbypermits.com/boulder/address/320-s-40th-st/): newest permit Aug 28, 2025
- [240 S 40th St](https://nearbypermits.com/boulder/address/240-s-40th-st/): newest permit May 5, 2025
- [335 S 40th St](https://nearbypermits.com/boulder/address/335-s-40th-st/): newest permit Sep 17, 2026
- [365 S 40th St](https://nearbypermits.com/boulder/address/365-s-40th-st/): newest permit Jul 14, 2025
- [375 S 40th St](https://nearbypermits.com/boulder/address/375-s-40th-st/): newest permit Jul 27, 2026
- [450 S 40th St](https://nearbypermits.com/boulder/address/450-s-40th-st/): newest permit Feb 19, 2026
- [455 S 40th St](https://nearbypermits.com/boulder/address/455-s-40th-st/): newest permit Apr 1, 2025

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 20:39 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/285-s-40th-st/