# Building permits at 1633 18th St 3, Boulder, CO

One permit here in the last two years. The newest, Oct 28, 2025: All outdoor equipment must be placed a minimum 18 inches above grade Installing mini split: 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 |
|---|---|---|---|---|
| Oct 28, 2025 | Mechanical (HVAC) | All outdoor equipment must be placed a minimum 18 inches above grade Installing mini split: System Components: (1) Mitsubishi Wall-Mounted - MSZFX09NL (1) Mitsubishi Outdoor Unit - MUZFX09NLHZ Electrical Upgrades: Branch Circuit Connection | $10,556 | [MEC2025-01593](https://nearbypermits.com/boulder/permit/MEC2025-01593/) |

## 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 2026-10-09 12:01 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

The one permit at this address: https://nearbypermits.com/boulder/address/1633-18th-st-3/