# Building permits at 525 S 40th St, Boulder, CO

Three permits on record here. The newest, Apr 16: Replacing furnace and AC. 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 |
|---|---|---|---|---|
| Apr 16, 2026 | Mechanical (HVAC) | replacing furnace and AC. 2.5 ton AC 16 seer. 70K BTU 80% eff 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 provide photographic evidence of the | $16,921 | [MEC2026-00587](https://nearbypermits.com/boulder/permit/MEC2026-00587/) |
| May 31, 2017 | Roofing | Total tear-off & reroof of SFD, 16 squares of asphalt shingles on a pitch represented as 4/12. All roof materials shall be installed per manufacturer's specs. Mid-roof inspection required if pitch is less than 4/12. | $10,500 | [PMT2017-02304-RFG](https://nearbypermits.com/boulder/permit/PMT2017-02304-RFG/) |
| Oct 4, 1990 | Mechanical (HVAC) | Mechanical gas piping & gas insert | $1,300 | [PMT1990-R3663-MEC](https://nearbypermits.com/boulder/permit/PMT1990-R3663-MEC/) |

## Zoning requests nearby

We don't list zoning cases for Boulder yet. Look them up on the city's Board of Zoning Adjustment page: https://bouldercolorado.gov/government/board-commission/board-zoning-adjustment

## More on this street

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

- [540 S 40th St](https://nearbypermits.com/boulder/address/540-s-40th-st/): newest permit Mar 31, 2026
- [545 S 40th St](https://nearbypermits.com/boulder/address/545-s-40th-st/): newest permit Sep 26, 2025
- [560 S 40th St](https://nearbypermits.com/boulder/address/560-s-40th-st/): newest permit Apr 10, 2025
- [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
- [625 S 40th St](https://nearbypermits.com/boulder/address/625-s-40th-st/): newest permit Aug 20, 2026
- [650 S 40th St](https://nearbypermits.com/boulder/address/650-s-40th-st/): newest permit Oct 8, 2024
- [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

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-09 05:41 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 3 permits at this address: https://nearbypermits.com/boulder/address/525-s-40th-st/