# Building permits at 2305 4th St, Boulder, CO

One permit here in the last two years. The newest, Sep 10: Replace existing Mini Split system with Mitsubishi Hyper Heat + Wall Mounted Unit. 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 |
|---|---|---|---|---|
| Sep 10, 2026 | Mechanical (HVAC) | Replace existing Mini Split system with Mitsubishi Hyper Heat + Wall Mounted Unit. No electrical upgrades. Associated with HIS2026-00249 (LAC) Any electrical work required beyond a like-for-like replacement of equipment will require an electrical permit for inspection of the electrical scope. PLEASE | $4,704 | [MEC2026-01517](https://nearbypermits.com/boulder/permit/MEC2026-01517/) |

## More on this street

Other addresses on 4th St with permits, nearest house number first:

- [2299 4th St](https://nearbypermits.com/boulder/address/2299-4th-st/): newest permit Aug 20, 2025
- [2323 4th St](https://nearbypermits.com/boulder/address/2323-4th-st/): newest permit Jan 21, 2026
- [2241 4th St](https://nearbypermits.com/boulder/address/2241-4th-st/): newest permit Jun 11, 2026
- [2237 4th St](https://nearbypermits.com/boulder/address/2237-4th-st/): newest permit Mar 5, 2026
- [2233 4th St](https://nearbypermits.com/boulder/address/2233-4th-st/): newest permit Jul 8, 2026
- [2385 4th St](https://nearbypermits.com/boulder/address/2385-4th-st/): newest permit Aug 25, 2025
- [2425 4th St](https://nearbypermits.com/boulder/address/2425-4th-st/): newest permit Mar 28, 2025
- [2427 4th St](https://nearbypermits.com/boulder/address/2427-4th-st/): newest permit Mar 7, 2025
- [2429 4th St](https://nearbypermits.com/boulder/address/2429-4th-st/): newest permit Dec 27, 2024
- [2431 4th St](https://nearbypermits.com/boulder/address/2431-4th-st/): newest permit Dec 16, 2024

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 09:42 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/2305-4th-st/