# Building permits at 4380 Ludlow St, Boulder, CO

Five permits on record here. The newest, Dec 6, 2024: Voided for inactivity - no inspection within 180 days 2 ton heat pump installation with a 5KW electric. 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 6, 2024 | Mechanical (HVAC) | Voided for inactivity - no inspection within 180 days 2 ton heat pump installation with a 5KW electric resistance strip backup replacing an old gas furnace. The gas line will be capped at the removed furnace location. Two circuit breakers will be installed for heat pump operation and no service upgr | $12,000 | [MEC2024-01829](https://nearbypermits.com/boulder/permit/MEC2024-01829/) |
| May 26, 2011 | Alteration or repair | Expansion of two egress windows in basement per engineered design. | $6,000 | [PMT2011-02137](https://nearbypermits.com/boulder/permit/PMT2011-02137/) |
| Mar 18, 2010 | Electrical | Electrical service change for 200 amp service | $1,000 | [PMT2010-00977-ELE](https://nearbypermits.com/boulder/permit/PMT2010-00977-ELE/) |
| Feb 5, 2002 | Mechanical (HVAC) | Replace forced air furnace in single-family residence. | $2,047 | [PMT2002-00473-MEC](https://nearbypermits.com/boulder/permit/PMT2002-00473-MEC/) |
| Sep 24, 1990 | Roofing | Roofing reroof - asphalt 3 tab | $1,256 | [PMT1990-R3392-RFG](https://nearbypermits.com/boulder/permit/PMT1990-R3392-RFG/) |

## More on this street

Other addresses on Ludlow St with permits, nearest house number first:

- [4360 Ludlow St](https://nearbypermits.com/boulder/address/4360-ludlow-st/): newest permit Jul 8, 2026
- [4350 Ludlow St](https://nearbypermits.com/boulder/address/4350-ludlow-st/): newest permit Apr 15, 2025
- [4345 Ludlow St](https://nearbypermits.com/boulder/address/4345-ludlow-st/): newest permit Nov 4, 2025
- [4425 Ludlow St](https://nearbypermits.com/boulder/address/4425-ludlow-st/): newest permit Mar 17, 2026
- [4475 Ludlow St](https://nearbypermits.com/boulder/address/4475-ludlow-st/): newest permit Dec 17, 2024
- [4620 Ludlow St](https://nearbypermits.com/boulder/address/4620-ludlow-st/): newest permit Oct 18, 2024
- [4640 Ludlow St](https://nearbypermits.com/boulder/address/4640-ludlow-st/): newest permit May 28, 2026
- [4650 Ludlow St](https://nearbypermits.com/boulder/address/4650-ludlow-st/): newest permit May 6, 2026
- [4675 Ludlow St](https://nearbypermits.com/boulder/address/4675-ludlow-st/): newest permit Sep 24, 2025
- [4685 Ludlow St](https://nearbypermits.com/boulder/address/4685-ludlow-st/): newest permit Jan 15, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 05:05 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 5 permits at this address: https://nearbypermits.com/boulder/address/4380-ludlow-st/