# Building permits at 651 12th St, Boulder, CO

Seven permits on record here. The newest, Jan 23: *Voided for inactivity. 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 |
|---|---|---|---|---|
| Jan 23, 2026 | Mechanical (HVAC) | *Voided for inactivity. No inspections requested within 180 days.* replace existing boiler Any electrical work required beyond a like-for-like replacement of equipment will require an electrical permit for inspection of the electrical scope. PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING  | $12,000 | [MEC2025-02116](https://nearbypermits.com/boulder/permit/MEC2025-02116/) |
| Aug 14, 2023 | Roofing | Total tear-off & reroof of SFD, 45.32 squares of dimensional shingles on a pitch represented as 6/12. All roof materials shall be installed per manufacturer?s specs. Mid-roof inspection required if pitch is less than 4/12. All roof covering materials shall be listed as Class A as tested in accordanc | $12,568 | [RFG2023-00416](https://nearbypermits.com/boulder/permit/RFG2023-00416/) |
| Dec 5, 2016 | Mechanical (HVAC) | Installation of replacement boiler with a triangle tube combination boiler, 115k BTU, to be located in a utility closet. | $12,162 | [PMT2016-05239-MEC](https://nearbypermits.com/boulder/permit/PMT2016-05239-MEC/) |
| Sep 4, 2003 | Mechanical (HVAC) | Replacement Low Pressure Boiler | $7,479 | [PMT2003-20061-MEC](https://nearbypermits.com/boulder/permit/PMT2003-20061-MEC/) |
| Feb 17, 1999 | Alteration or repair | Remodel master bedroom the original general permit number is 991362. | $150,000 | [PMT1999-01362](https://nearbypermits.com/boulder/permit/PMT1999-01362/) |
| Nov 12, 1992 | Addition | Redwood deck the original general permit number is 925267. | $6,500 | [PMT1992-05267](https://nearbypermits.com/boulder/permit/PMT1992-05267/) |
| Jan 9, 1989 | Mechanical (HVAC) | Mechanical replace water heater | $350 | [PMT1989-N8118-MEC](https://nearbypermits.com/boulder/permit/PMT1989-N8118-MEC/) |

## More on this street

Other addresses on 12th St with permits, nearest house number first:

- [650 12th St](https://nearbypermits.com/boulder/address/650-12th-st/): newest permit Mar 18, 2025
- [655 12th St](https://nearbypermits.com/boulder/address/655-12th-st/): newest permit Feb 27, 2025
- [728 12th St](https://nearbypermits.com/boulder/address/728-12th-st/): newest permit Aug 8, 2025
- [735 12th St](https://nearbypermits.com/boulder/address/735-12th-st/): newest permit Oct 18, 2024
- [550 12th St](https://nearbypermits.com/boulder/address/550-12th-st/): newest permit May 12, 2025
- [820 12th St](https://nearbypermits.com/boulder/address/820-12th-st/): newest permit May 29, 2025
- [830 12th St](https://nearbypermits.com/boulder/address/830-12th-st/): newest permit Jan 20, 2026
- [840 12th St](https://nearbypermits.com/boulder/address/840-12th-st/): newest permit Sep 29, 2025
- [845 12th St](https://nearbypermits.com/boulder/address/845-12th-st/): newest permit Oct 13, 2025
- [891 12th St](https://nearbypermits.com/boulder/address/891-12th-st/): newest permit Oct 8, 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 00:28 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 7 permits at this address: https://nearbypermits.com/boulder/address/651-12th-st/