# Building permits at 2251 23rd St, Boulder, CO

One permit here in the last two years. The newest, Nov 12, 2025: Install replacement 80% 90k btu furnace and replace existing ac w/a 20 SEER 3 ton heat pump and reconnect. 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 |
|---|---|---|---|---|
| Nov 12, 2025 | Mechanical (HVAC) | install replacement 80% 90k btu furnace and replace existing ac w/a 20 SEER 3 ton heat pump and reconnect PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitate the inspection process, | $15,564 | [MEC2025-01990](https://nearbypermits.com/boulder/permit/MEC2025-01990/) |

## More on this street

Other addresses on 23rd St with permits, nearest house number first:

- [2247 23rd St](https://nearbypermits.com/boulder/address/2247-23rd-st/): newest permit Oct 17, 2025
- [2335 23rd St](https://nearbypermits.com/boulder/address/2335-23rd-st/): newest permit Jul 17, 2026
- [2129 23rd St](https://nearbypermits.com/boulder/address/2129-23rd-st/): newest permit Feb 24, 2025
- [2090 23rd St](https://nearbypermits.com/boulder/address/2090-23rd-st/): newest permit Jan 30, 2026
- [2423 23rd St](https://nearbypermits.com/boulder/address/2423-23rd-st/): newest permit Aug 15, 2025
- [2431 23rd St](https://nearbypermits.com/boulder/address/2431-23rd-st/): newest permit Apr 15, 2025
- [2060 23rd St](https://nearbypermits.com/boulder/address/2060-23rd-st/): newest permit Jan 8, 2025
- [1924 23rd St](https://nearbypermits.com/boulder/address/1924-23rd-st/): newest permit Jul 27, 2026
- [1860 23rd St](https://nearbypermits.com/boulder/address/1860-23rd-st/): newest permit Sep 8, 2026
- [1851 23rd St](https://nearbypermits.com/boulder/address/1851-23rd-st/): newest permit Apr 8, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 10:44 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/2251-23rd-st/