# Building permits at 1633 18th St 6, Boulder, CO

Two permits on record here. The newest, Jun 29: Install like for like 155K BTU boiler - no electrical - Unit 6 in multi family building Any electrical work. 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 |
|---|---|---|---|---|
| Jun 29, 2026 | Mechanical (HVAC) | Install like for like 155K BTU boiler - no electrical - Unit 6 in multi family building 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 APP | $19,000 | [MEC2026-00839](https://nearbypermits.com/boulder/permit/MEC2026-00839/) |
| Feb 9, 2026 | Mechanical (HVAC) | Installing a mini split system System Components: (1) Mitsubishi HiWall - MSZ-GX09NL (1) Mitsubishi HiWall - MSZ-GX12NL (1) Mitsubishi Outdoor Unit - MXZ2D20NLHZ Electrical Upgrades: Branch Circuit Connection PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued | $17,425 | [MEC2025-01858](https://nearbypermits.com/boulder/permit/MEC2025-01858/) |

## 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 18th St with permits, nearest house number first:

- [1623 18th St](https://nearbypermits.com/boulder/address/1623-18th-st/): newest permit Jul 17, 2026
- [1820 18th St](https://nearbypermits.com/boulder/address/1820-18th-st/): newest permit Apr 29, 2026
- [1430 18th St 16](https://nearbypermits.com/boulder/address/1430-18th-st-16/): newest permit Feb 27, 2026
- [1934 18th St](https://nearbypermits.com/boulder/address/1934-18th-st/): newest permit Jan 24, 2025
- [2002 18th St](https://nearbypermits.com/boulder/address/2002-18th-st/): newest permit Jul 16, 2025
- [2008 18th St](https://nearbypermits.com/boulder/address/2008-18th-st/): newest permit Dec 16, 2025
- [2014 18th St](https://nearbypermits.com/boulder/address/2014-18th-st/): newest permit Mar 21, 2025
- [2016 18th St](https://nearbypermits.com/boulder/address/2016-18th-st/): newest permit Sep 12, 2025
- [2119 18th St](https://nearbypermits.com/boulder/address/2119-18th-st/): newest permit Sep 10, 2026
- [2121 18th St](https://nearbypermits.com/boulder/address/2121-18th-st/): newest permit Sep 10, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 17:31 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Both permits at this address: https://nearbypermits.com/boulder/address/1633-18th-st-6/