# Building permits at 4345 Ludlow St, Boulder, CO

Three permits on record here. The newest, Nov 4, 2025: *Voided for inactivity - no inspections for 180 days* 40-Gal. 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 |
|---|---|---|---|---|
| Nov 4, 2025 | Plumbing | *Voided for inactivity - no inspections for 180 days* 40-Gal. Tall 9-year 40000-BTU Nat. Gas 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, | $2,817 | [MEC2025-01926](https://nearbypermits.com/boulder/permit/MEC2025-01926/) |
| Jul 15, 2013 | Mechanical (HVAC) | Installation of replacement 70,000 btu forced air furnace, new 2 ton comfort cooling system with associated electrical, and service upgrade to 150 amps. | $5,841 | [PMT2013-03274-MEC](https://nearbypermits.com/boulder/permit/PMT2013-03274-MEC/) |
| Jul 15, 2013 | Electrical | Installation of replacement 70,000 btu forced air furnace, new 2 ton comfort cooling system with associated electrical, and service upgrade to 150 amps. | $3,334 | [PMT2013-03274-ELE](https://nearbypermits.com/boulder/permit/PMT2013-03274-ELE/) |

## More on this street

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

- [4350 Ludlow St](https://nearbypermits.com/boulder/address/4350-ludlow-st/): newest permit Apr 15, 2025
- [4360 Ludlow St](https://nearbypermits.com/boulder/address/4360-ludlow-st/): newest permit Jul 8, 2026
- [4380 Ludlow St](https://nearbypermits.com/boulder/address/4380-ludlow-st/): newest permit Dec 6, 2024
- [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 10:17 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/4345-ludlow-st/