# Building permits at 855 Union Ave, Boulder, CO

Three permits here in the last two years. The newest, May 7: Installation of a new NFPA 13D Fire sprinkler system with pump and tank system. 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 |
|---|---|---|---|---|
| May 7, 2026 | Fire systems | Installation of a new NFPA 13D Fire sprinkler system with pump and tank system | $19,247 | [FIR2026-00170](https://nearbypermits.com/boulder/permit/FIR2026-00170/) |
| Apr 17, 2026 | Electrical | REVISION 6/8/26-Panel layout revision Roof mounted PV solar | $38,247 | [ELE2026-00300](https://nearbypermits.com/boulder/permit/ELE2026-00300/) |
| Dec 31, 2025 | New building | New two story single family home, with partial finished basement. 5 bedroom and 5 bathroom. Basement (1071sf) includes rec room, two bedrooms, wet bar and bath. Main floor (1516 sf) inc kitchen, dining, great room and office and attached garage (469sf). Second floor (1474 sf) includes 3 bedrooms and | $1,110,000 | [BLD-SFD2025-00187](https://nearbypermits.com/boulder/permit/BLD-SFD2025-00187/) |

## More on this street

Other addresses on Union Ave with permits, nearest house number first:

- [860 Union Ave](https://nearbypermits.com/boulder/address/860-union-ave/): newest permit Sep 21, 2026
- [862 Union Ave](https://nearbypermits.com/boulder/address/862-union-ave/): newest permit Jul 9, 2026
- [865 Union Ave](https://nearbypermits.com/boulder/address/865-union-ave/): newest permit Aug 14, 2026
- [840 Union Ave](https://nearbypermits.com/boulder/address/840-union-ave/): newest permit Mar 3, 2026
- [830 Union Ave](https://nearbypermits.com/boulder/address/830-union-ave/): newest permit Oct 2, 2026
- [890 Union Ave](https://nearbypermits.com/boulder/address/890-union-ave/): newest permit Mar 18, 2026
- [906 Union Ave](https://nearbypermits.com/boulder/address/906-union-ave/): newest permit Jul 22, 2025
- [800 Union Ave](https://nearbypermits.com/boulder/address/800-union-ave/): newest permit Feb 3, 2025
- [792 Union Ave](https://nearbypermits.com/boulder/address/792-union-ave/): newest permit Nov 19, 2024
- [933 Union Ave](https://nearbypermits.com/boulder/address/933-union-ave/): newest permit Sep 16, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 12:58 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/855-union-ave/