# Building permits at 800 Union Ave, Boulder, CO

Six permits on record here. The newest, Feb 3, 2025: Installation of a flush-mount, grid-tied 13.120 kW PV solar 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 |
|---|---|---|---|---|
| Feb 3, 2025 | Electrical | Installation of a flush-mount, grid-tied 13.120 kW PV solar system. We need to include rough -in installation of conductor and conduit in preparation for PV install. | $29,052 | [ELE2024-01051](https://nearbypermits.com/boulder/permit/ELE2024-01051/) |
| Jul 19, 2024 | Fire systems | fire sprinklers NFPA 13D in house with pump and tank concealed residential sprinklers. (Fsn13d) | $17,500 | [FIR2024-00302](https://nearbypermits.com/boulder/permit/FIR2024-00302/) |
| Apr 9, 2024 | New building | New two-story single family home that includes a full finished basement. Total of 5 bedrooms and 3.5 bathrooms. Basement (1225 sf) includes rec room, guest bedroom, full bathroom and mechanical room. First floor (1485 sf) includes dining room, family room, kitchen, powder room, laundry/mud room, cov | $1,600,000 | [BLD-SFD2023-00298](https://nearbypermits.com/boulder/permit/BLD-SFD2023-00298/) |
| Mar 27, 2024 | Electrical | temp power | Not listed | [ELE2024-00262](https://nearbypermits.com/boulder/permit/ELE2024-00262/) |
| Aug 17, 2023 | Demolition | Deconstruction of full structure: 2118SF 1-story wood frame house | Not listed | [DEM2023-00042](https://nearbypermits.com/boulder/permit/DEM2023-00042/) |
| Dec 1, 2021 | Roofing | Total tear-off & reroof of SFD, 29 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 | $12,325 | [RFG2021-00827](https://nearbypermits.com/boulder/permit/RFG2021-00827/) |

## More on this street

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

- [792 Union Ave](https://nearbypermits.com/boulder/address/792-union-ave/): newest permit Nov 19, 2024
- [770 Union Ave](https://nearbypermits.com/boulder/address/770-union-ave/): newest permit May 1, 2025
- [830 Union Ave](https://nearbypermits.com/boulder/address/830-union-ave/): newest permit Oct 2, 2026
- [840 Union Ave](https://nearbypermits.com/boulder/address/840-union-ave/): newest permit Mar 3, 2026
- [855 Union Ave](https://nearbypermits.com/boulder/address/855-union-ave/): newest permit May 7, 2026
- [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
- [725 Union Ave](https://nearbypermits.com/boulder/address/725-union-ave/): newest permit Dec 19, 2025
- [890 Union Ave](https://nearbypermits.com/boulder/address/890-union-ave/): newest permit Mar 18, 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 16:56 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 6 permits at this address: https://nearbypermits.com/boulder/address/800-union-ave/