# Building permits at 4685 Harrison Ave, Boulder, CO

Three permits on record here. The newest, Dec 11, 2025: One time 180-day permit extension granted. 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 |
|---|---|---|---|---|
| Dec 11, 2025 | Mechanical (HVAC) | One time 180-day permit extension granted. All work and inspections must be completed by 12/16/2026. Replace existing furnace and replace existing A/C with a new heat pump 18 SEER2 38k BTU PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burn | $10,621 | [MEC2025-02114](https://nearbypermits.com/boulder/permit/MEC2025-02114/) |
| Aug 27, 2021 | Roofing | Total tear-off & reroof of SFD, 30 squares of dimensional shingles on a pitch represented as 4/12. 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 | $14,019 | [RFG2021-00574](https://nearbypermits.com/boulder/permit/RFG2021-00574/) |
| Apr 30, 2021 | Mechanical (HVAC) | *Voided for inactivity - no inspections within 180 days* Replace water heater | $2,855 | [MEC2021-00764](https://nearbypermits.com/boulder/permit/MEC2021-00764/) |

## More on this street

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

- [4701 Harrison Ave](https://nearbypermits.com/boulder/address/4701-harrison-ave/): newest permit Jan 20, 2026
- [4707 Harrison Ave](https://nearbypermits.com/boulder/address/4707-harrison-ave/): newest permit May 14, 2025
- [4730 Harrison Ave](https://nearbypermits.com/boulder/address/4730-harrison-ave/): newest permit Jun 15, 2026
- [4735 Harrison Ave](https://nearbypermits.com/boulder/address/4735-harrison-ave/): newest permit Sep 16, 2025
- [4740 Harrison Ave](https://nearbypermits.com/boulder/address/4740-harrison-ave/): newest permit Sep 2, 2026
- [4746 Harrison Ave](https://nearbypermits.com/boulder/address/4746-harrison-ave/): newest permit May 22, 2025
- [4760 Harrison Ave](https://nearbypermits.com/boulder/address/4760-harrison-ave/): newest permit Mar 13, 2026
- [4775 Harrison Ave](https://nearbypermits.com/boulder/address/4775-harrison-ave/): newest permit May 30, 2025
- [4780 Harrison Ave](https://nearbypermits.com/boulder/address/4780-harrison-ave/): newest permit May 21, 2026
- [4795 Harrison Ave](https://nearbypermits.com/boulder/address/4795-harrison-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 2026-10-07 00:22 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/4685-harrison-ave/