# Building permits at 3075 18th St, Boulder, CO

Nine permits on record here. The newest, Jan 28: Replacement furnace and heat pump replacing air conditioner PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL. 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 28, 2026 | Mechanical (HVAC) | Replacement furnace and heat pump replacing air conditioner 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 p | $20,943 | [MEC2026-00149](https://nearbypermits.com/boulder/permit/MEC2026-00149/) |
| Feb 1, 2008 | Demolition | Interior partition demo. No structural | Not listed | [PMT2007-02026-DEM](https://nearbypermits.com/boulder/permit/PMT2007-02026-DEM/) |
| Jul 3, 2007 | Mechanical (HVAC) | New Forced Air Furnace, New Comfort Cooling | $6,896 | [PMT2007-20176-MEC](https://nearbypermits.com/boulder/permit/PMT2007-20176-MEC/) |
| Jun 11, 2007 | Electrical | New two car garage. 400 SF | $500 | [PMT2007-02024-ELE](https://nearbypermits.com/boulder/permit/PMT2007-02024-ELE/) |
| Jun 11, 2007 | New building | New two car garage. 400 SF | $11,180 | [PMT2007-02024](https://nearbypermits.com/boulder/permit/PMT2007-02024/) |
| Jun 11, 2007 | Plumbing | Remodel existing SFD No change in footprint or height. Change out partitons and bathroom fixtures. Add egress window to basement. 1750 SF. Reroof. | $4,800 | [PMT2007-02022-PLB](https://nearbypermits.com/boulder/permit/PMT2007-02022-PLB/) |
| Jun 11, 2007 | Mechanical (HVAC) | Remodel existing SFD No change in footprint or height. Change out partitons and bathroom fixtures. Add egress window to basement. 1750 SF. Reroof. | $11,000 | [PMT2007-02022-MEC](https://nearbypermits.com/boulder/permit/PMT2007-02022-MEC/) |
| Jun 11, 2007 | Electrical | Remodel existing SFD No change in footprint or height. Change out partitons and bathroom fixtures. Add egress window to basement. 1750 SF. Reroof. | $4,200 | [PMT2007-02022-ELE](https://nearbypermits.com/boulder/permit/PMT2007-02022-ELE/) |
| Jun 11, 2007 | Alteration or repair | Remodel existing SFD No change in footprint or height. Change out partitons and bathroom fixtures. Add egress window to basement. 1750 SF. Reroof. | $77,000 | [PMT2007-02022](https://nearbypermits.com/boulder/permit/PMT2007-02022/) |

## More on this street

Other addresses on 18th St with permits, nearest house number first:

- [3060 18th St](https://nearbypermits.com/boulder/address/3060-18th-st/): newest permit Jan 14, 2026
- [3050 18th St](https://nearbypermits.com/boulder/address/3050-18th-st/): newest permit Aug 26, 2026
- [3040 18th St](https://nearbypermits.com/boulder/address/3040-18th-st/): newest permit Jun 9, 2026
- [3035 18th St](https://nearbypermits.com/boulder/address/3035-18th-st/): newest permit Dec 3, 2025
- [3025 18th St](https://nearbypermits.com/boulder/address/3025-18th-st/): newest permit Jun 1, 2026
- [3010 18th St](https://nearbypermits.com/boulder/address/3010-18th-st/): newest permit Sep 1, 2026
- [2985 18th St](https://nearbypermits.com/boulder/address/2985-18th-st/): newest permit Dec 23, 2025
- [3175 18th St](https://nearbypermits.com/boulder/address/3175-18th-st/): newest permit Nov 5, 2025
- [2950 18th St](https://nearbypermits.com/boulder/address/2950-18th-st/): newest permit Jun 17, 2026
- [2940 18th St](https://nearbypermits.com/boulder/address/2940-18th-st/): newest permit Sep 4, 2026

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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 12:05 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 9 permits at this address: https://nearbypermits.com/boulder/address/3075-18th-st/