# Building permits at 1666 North St, Boulder, CO

Three permits on record here. The newest, Feb 18: Installing ductless heat pump mini split system: 1-Mitsubishi Electric MXZ-3D24NLHZ - Heat Pump 24,000 BTUs. 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 |
|---|---|---|---|---|
| Feb 18, 2026 | Mechanical (HVAC) | Installing ductless heat pump mini split system: 1-Mitsubishi Electric MXZ-3D24NLHZ - Heat Pump 24,000 BTUs Cooling 25,000 BTUs Heating 2-Indoor units 1-New circuit for heat pump system PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burning | $16,409 | [MEC2026-00237](https://nearbypermits.com/boulder/permit/MEC2026-00237/) |
| Oct 2, 2024 | Roofing | Total tear-off & reroof of SFD, 15 squares of dimensional shingles on a pitch represented as 5/12. All roof materials shall be installed per manufacturer?s specs. Mid-roof inspection required if pitch is less than 4/12. All roof covering materials shall be listed as Class A as tested in accordance w | $11,932 | [RFG2024-00646](https://nearbypermits.com/boulder/permit/RFG2024-00646/) |
| Apr 6, 1999 | Alteration or repair | Remodel of existing SFD the original general permit number is 992095. | $50,000 | [PMT1999-02095](https://nearbypermits.com/boulder/permit/PMT1999-02095/) |

## More on this street

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

- [1656 North St](https://nearbypermits.com/boulder/address/1656-north-st/): newest permit Jun 6, 2025
- [1649 North St](https://nearbypermits.com/boulder/address/1649-north-st/): newest permit Sep 18, 2026
- [1646 North St](https://nearbypermits.com/boulder/address/1646-north-st/): newest permit Dec 16, 2025
- [1629 North St](https://nearbypermits.com/boulder/address/1629-north-st/): newest permit Aug 28, 2025
- [1626 North St](https://nearbypermits.com/boulder/address/1626-north-st/): newest permit Mar 25, 2025
- [1577 North St](https://nearbypermits.com/boulder/address/1577-north-st/): newest permit Aug 4, 2025
- [1574 North St](https://nearbypermits.com/boulder/address/1574-north-st/): newest permit Sep 28, 2026
- [1567 North St](https://nearbypermits.com/boulder/address/1567-north-st/): newest permit Sep 16, 2025
- [1564 North St](https://nearbypermits.com/boulder/address/1564-north-st/): newest permit Sep 4, 2026
- [1547 North St](https://nearbypermits.com/boulder/address/1547-north-st/): newest permit Sep 14, 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 01:06 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 3 permits at this address: https://nearbypermits.com/boulder/address/1666-north-st/