# Building permits at 3857 Orion Ct, Boulder, CO

Three permits on record here. The newest, Aug 6: Replace water heater. 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 |
|---|---|---|---|---|
| Aug 6, 2026 | Mechanical (HVAC) | Replace water heater. 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, please provide photographic evidence of the pressure test directly to the assigned  | $2,400 | [MEC2026-01353](https://nearbypermits.com/boulder/permit/MEC2026-01353/) |
| May 13, 2011 | Roofing | Total tear off and reroof of existing single family dwelling. 30-yr dimensional shingles, 14 squares, 4/12 pitch as indicated on permit application. | $4,600 | [PMT2011-01922-RFG](https://nearbypermits.com/boulder/permit/PMT2011-01922-RFG/) |
| May 1, 1992 | Addition | Addition/deck 244 SQ ft/airlock entry 65 SQ FT the original general permit num | $5,500 | [PMT1992-06934](https://nearbypermits.com/boulder/permit/PMT1992-06934/) |

## Zoning requests nearby

We don't list zoning cases for Boulder yet. Look them up on the city's Board of Zoning Adjustment page: https://bouldercolorado.gov/government/board-commission/board-zoning-adjustment

## More on this street

Other addresses on Orion Ct with permits, nearest house number first:

- [3851 Orion Ct](https://nearbypermits.com/boulder/address/3851-orion-ct/): newest permit Jun 15, 2026
- [3844 Orion Ct](https://nearbypermits.com/boulder/address/3844-orion-ct/): newest permit Dec 3, 2024
- [3842 Orion Ct](https://nearbypermits.com/boulder/address/3842-orion-ct/): newest permit Jan 13, 2025
- [3841 Orion Ct](https://nearbypermits.com/boulder/address/3841-orion-ct/): newest permit Sep 24, 2026
- [3838 Orion Ct](https://nearbypermits.com/boulder/address/3838-orion-ct/): newest permit May 12, 2025
- [3837 Orion Ct](https://nearbypermits.com/boulder/address/3837-orion-ct/): newest permit Oct 7, 2026
- [3835 Orion Ct](https://nearbypermits.com/boulder/address/3835-orion-ct/): newest permit Mar 17, 2025
- [3834 Orion Ct](https://nearbypermits.com/boulder/address/3834-orion-ct/): newest permit Jun 10, 2026
- [3833 Orion Ct](https://nearbypermits.com/boulder/address/3833-orion-ct/): newest permit Apr 30, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-09 16:37 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/3857-orion-ct/