# Building permits at 830 12th St, Boulder, CO

Four permits on record here. The newest, Jan 20: Install new 3 zone mini split heat pump system. 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 20, 2026 | Mechanical (HVAC) | Install new 3 zone mini split heat pump system. 200 amp service upgrade. New circuit for the condenser. 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, p | $21,327 | [MEC2026-00095](https://nearbypermits.com/boulder/permit/MEC2026-00095/) |
| Jan 9, 2025 | Mechanical (HVAC) | Replacement furnace. Lennox Elite Series High Efficiency Furnace - 45,000 BTU capacity, 96% AFUE. | $5,878 | [MEC2025-00035](https://nearbypermits.com/boulder/permit/MEC2025-00035/) |
| Apr 6, 2022 | Roofing | Total tear-off & reroof of SFD, 17 squares of dimensional shingles on a pitch represented as 5/12. 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 accordance w | $19,449 | [RFG2022-00272](https://nearbypermits.com/boulder/permit/RFG2022-00272/) |
| Jan 11, 2006 | Mechanical (HVAC) | Replacement Forced Air Furnace | $1,219 | [PMT2006-20024-MEC](https://nearbypermits.com/boulder/permit/PMT2006-20024-MEC/) |

## More on this street

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

- [820 12th St](https://nearbypermits.com/boulder/address/820-12th-st/): newest permit May 29, 2025
- [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
- [907 12th St](https://nearbypermits.com/boulder/address/907-12th-st/): newest permit Dec 4, 2025
- [916 12th St](https://nearbypermits.com/boulder/address/916-12th-st/): newest permit May 16, 2025
- [735 12th St](https://nearbypermits.com/boulder/address/735-12th-st/): newest permit Oct 18, 2024
- [728 12th St](https://nearbypermits.com/boulder/address/728-12th-st/): newest permit Aug 8, 2025
- [955 12th St](https://nearbypermits.com/boulder/address/955-12th-st/): newest permit Sep 28, 2026
- [655 12th St](https://nearbypermits.com/boulder/address/655-12th-st/): newest permit Feb 27, 2025

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 11:34 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 4 permits at this address: https://nearbypermits.com/boulder/address/830-12th-st/