# Building permits at 4780 Harrison Ave, Boulder, CO

Four permits on record here. The newest, May 21: Replace current AC with Rheem 2.5T AC. 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 21, 2026 | Mechanical (HVAC) | Replace current AC with Rheem 2.5T AC. Any electrical work required beyond a like-for-like replacement of equipment will require an electrical permit for inspection of the electrical scope. | $3,831 | [MEC2026-00818](https://nearbypermits.com/boulder/permit/MEC2026-00818/) |
| Dec 5, 2018 | Mechanical (HVAC) | Voided for inactivity due to no inspections performed within 180 days of issuance. Online submittal-Replace furnace | $2,801 | [MEC2018-01291](https://nearbypermits.com/boulder/permit/MEC2018-01291/) |
| Jan 27, 2011 | Mechanical (HVAC) | Mechanical Permit - For replacement water heater in SFD. | $698 | [PMT2011-00420-MEC](https://nearbypermits.com/boulder/permit/PMT2011-00420-MEC/) |
| Jan 4, 2000 | Mechanical (HVAC) | Install faf | $1,204 | [PMT2000-00139-MEC](https://nearbypermits.com/boulder/permit/PMT2000-00139-MEC/) |

## More on this street

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

- [4775 Harrison Ave](https://nearbypermits.com/boulder/address/4775-harrison-ave/): newest permit May 30, 2025
- [4795 Harrison Ave](https://nearbypermits.com/boulder/address/4795-harrison-ave/): newest permit Mar 18, 2026
- [4760 Harrison Ave](https://nearbypermits.com/boulder/address/4760-harrison-ave/): newest permit Mar 13, 2026
- [4746 Harrison Ave](https://nearbypermits.com/boulder/address/4746-harrison-ave/): newest permit May 22, 2025
- [4740 Harrison Ave](https://nearbypermits.com/boulder/address/4740-harrison-ave/): newest permit Sep 2, 2026
- [4735 Harrison Ave](https://nearbypermits.com/boulder/address/4735-harrison-ave/): newest permit Sep 16, 2025
- [4730 Harrison Ave](https://nearbypermits.com/boulder/address/4730-harrison-ave/): newest permit Jun 15, 2026
- [4707 Harrison Ave](https://nearbypermits.com/boulder/address/4707-harrison-ave/): newest permit May 14, 2025
- [4701 Harrison Ave](https://nearbypermits.com/boulder/address/4701-harrison-ave/): newest permit Jan 20, 2026
- [4685 Harrison Ave](https://nearbypermits.com/boulder/address/4685-harrison-ave/): newest permit Dec 11, 2025

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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 19:31 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 4 permits at this address: https://nearbypermits.com/boulder/address/4780-harrison-ave/