# Building permits at 3231 4th St, Boulder, CO

Two permits here in the last two years. The newest, Aug 21, 2025: New single zone mini split heat pump with new electrical circuit. 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 21, 2025 | Mechanical (HVAC) | New single zone mini split heat pump with new electrical circuit. Heat pump; 9,000 BTU, 28.4 SEER2 and 10.9 HSPF2. All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitate the inspection process, please provide photographic evidence of the pressure test di | $6,402 | [MEC2025-01373](https://nearbypermits.com/boulder/permit/MEC2025-01373/) |
| Feb 12, 2025 | Electrical | 3/31/25 Removed sub panel and 2nd hardwired EV charger, going back to original approved permit application 3/24/25 Install a 240V 40Ahardwired Tesla EV Charger. Install a 240V 40A hardwired Tesla EV charger in the garage. 2/24/25 Updates to connectors and volts | $1,000 | [ELE2025-00030](https://nearbypermits.com/boulder/permit/ELE2025-00030/) |

## More on this street

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

- [3232 4th St](https://nearbypermits.com/boulder/address/3232-4th-st/): newest permit Dec 12, 2024
- [3229 4th St](https://nearbypermits.com/boulder/address/3229-4th-st/): newest permit Sep 16, 2025
- [3223 4th St](https://nearbypermits.com/boulder/address/3223-4th-st/): newest permit Apr 22, 2025
- [3239 4th St](https://nearbypermits.com/boulder/address/3239-4th-st/): newest permit Oct 21, 2024
- [3201 4th St](https://nearbypermits.com/boulder/address/3201-4th-st/): newest permit Sep 11, 2026
- [3171 4th St](https://nearbypermits.com/boulder/address/3171-4th-st/): newest permit Sep 8, 2026
- [3302 4th St](https://nearbypermits.com/boulder/address/3302-4th-st/): newest permit Jul 3, 2025
- [3160 4th St](https://nearbypermits.com/boulder/address/3160-4th-st/): newest permit Oct 6, 2025
- [3307 4th St](https://nearbypermits.com/boulder/address/3307-4th-st/): newest permit Apr 13, 2026
- [3309 4th St](https://nearbypermits.com/boulder/address/3309-4th-st/): newest permit May 22, 2025

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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 12:06 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/3231-4th-st/