# Building permits at 1731 28th St, Boulder, CO

Two permits here in the last two years. The newest, Sep 28: Install two new exterior internally illuminated. 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 28, 2026 | Sign | Install two new exterior internally illuminated, reverse-lit channel-letter wall signs for Woodhouse Spa at 1731 28th Street. Sign S1 will be installed on the main/north tenant elevation and Sign S2 will be installed on the east tenant elevation. Each sign is approximately 28.5 square feet, for a to | $5,453 | [SGN2026-00083](https://nearbypermits.com/boulder/permit/SGN2026-00083/) |
| Apr 14, 2025 | Sign | *Voided for inactivity - no inspections within 180 days* Temporary Banner | $300 | [SGN2021-00004](https://nearbypermits.com/boulder/permit/SGN2021-00004/) |

## More on this street

Other addresses on 28th St with permits, nearest house number first:

- [1741 28th St](https://nearbypermits.com/boulder/address/1741-28th-st/): newest permit Apr 14, 2025
- [1690 28th St](https://nearbypermits.com/boulder/address/1690-28th-st/): newest permit Sep 17, 2026
- [1789 28th St](https://nearbypermits.com/boulder/address/1789-28th-st/): newest permit Jul 6, 2026
- [1800 28th St](https://nearbypermits.com/boulder/address/1800-28th-st/): newest permit Jul 31, 2026
- [1650 28th St 1230](https://nearbypermits.com/boulder/address/1650-28th-st-1230/): newest permit Apr 18, 2025
- [1629 28th St](https://nearbypermits.com/boulder/address/1629-28th-st/): newest permit Jan 7, 2026
- [1875 28th St](https://nearbypermits.com/boulder/address/1875-28th-st/): newest permit Oct 30, 2025
- [1895 28th St](https://nearbypermits.com/boulder/address/1895-28th-st/): newest permit Jun 30, 2026
- [1906 28th St](https://nearbypermits.com/boulder/address/1906-28th-st/): newest permit Jun 15, 2026
- [1538 28th St](https://nearbypermits.com/boulder/address/1538-28th-st/): newest permit Jan 7, 2026

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 09:22 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/1731-28th-st/