# Building permits at 2255 18th St, Boulder, CO

Nine permits on record here. The newest, Aug 14: Revision 7/20/2026 Changes to foundation Expansion of front porch and replacing rear storage with awning over. 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 |
|---|---|---|---|---|
| Aug 14, 2026 | Addition | Revision 7/20/2026 Changes to foundation Expansion of front porch and replacing rear storage with awning over new rear entry door for single family dwelling - includes electrical *ADR2026-00073 | $56,000 | [BLD-SFD2026-00331](https://nearbypermits.com/boulder/permit/BLD-SFD2026-00331/) |
| May 13, 2026 | Electrical | Subpanel upgrade, new hot tub disconnect, new LED lighting, new ceiling fans, new smoke detectors | $3,000 | [ELE2026-00459](https://nearbypermits.com/boulder/permit/ELE2026-00459/) |
| Apr 13, 2026 | Roofing | All Structures must be permitted separately Total tear-off & reroof of SFD, 19 squares of dimensional shingles on a pitch represented as 5/12. All roof materials shall be installed per manufacturer?s specs. Mid-roof inspection is required if 1) pitch is less than 4/12 or 2) for any roof type other t | $9,500 | [RFG2026-00319](https://nearbypermits.com/boulder/permit/RFG2026-00319/) |
| May 17, 2023 | Mechanical (HVAC) | Install new mini split - 3-1 - Condenser - 30,000 BTU Head 1 -15,000 BTU Head 2 - 9,000 BTU Head 3 - 6,000 BTU Electrical connect for new mini split | $12,240 | [MEC2023-00706](https://nearbypermits.com/boulder/permit/MEC2023-00706/) |
| Nov 8, 2018 | Mechanical (HVAC) | * Install replacement 80% efficient, 80k btu/hr condensing gas boiler. Installation per manufacturer's specifications. (online submittal) | $4,250 | [MEC2018-01324](https://nearbypermits.com/boulder/permit/MEC2018-01324/) |
| Jun 14, 2007 | Electrical | Electrical permit to wire 500 s.f. detached garage including 200 amp service change. | $1,000 | [PMT2007-02426-ELE](https://nearbypermits.com/boulder/permit/PMT2007-02426-ELE/) |
| Apr 2, 2007 | New building | Construction of new, 500 s.f. detached garage. See ADR2006-00172 for minor modification. No services to building. | $23,900 | [PMT2007-00536](https://nearbypermits.com/boulder/permit/PMT2007-00536/) |
| Sep 13, 2006 | Roofing | Remove existing shingles and re-roof single-family residence with dimensional shingles. 15 squares, 10:12 pitch. | $2,546 | [PMT2006-03872-RFG](https://nearbypermits.com/boulder/permit/PMT2006-03872-RFG/) |
| Jul 21, 1998 | Alteration or repair | Kitchen remodel & relocate electric panel the original general permit number i | $1,600 | [PMT1998-04884](https://nearbypermits.com/boulder/permit/PMT1998-04884/) |

## More on this street

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

- [2338 18th St](https://nearbypermits.com/boulder/address/2338-18th-st/): newest permit Apr 2, 2026
- [2345 18th St](https://nearbypermits.com/boulder/address/2345-18th-st/): newest permit Dec 12, 2024
- [2121 18th St](https://nearbypermits.com/boulder/address/2121-18th-st/): newest permit Sep 10, 2026
- [2119 18th St](https://nearbypermits.com/boulder/address/2119-18th-st/): newest permit Sep 10, 2026
- [2016 18th St](https://nearbypermits.com/boulder/address/2016-18th-st/): newest permit Sep 12, 2025
- [2014 18th St](https://nearbypermits.com/boulder/address/2014-18th-st/): newest permit Mar 21, 2025
- [2008 18th St](https://nearbypermits.com/boulder/address/2008-18th-st/): newest permit Dec 16, 2025
- [2002 18th St](https://nearbypermits.com/boulder/address/2002-18th-st/): newest permit Jul 16, 2025
- [1934 18th St](https://nearbypermits.com/boulder/address/1934-18th-st/): newest permit Jan 24, 2025
- [1820 18th St](https://nearbypermits.com/boulder/address/1820-18th-st/): newest permit Apr 29, 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 22:48 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/2255-18th-st/