# Building permits at 4425 Ludlow St, Boulder, CO

Eight permits on record here. The newest, Mar 17: Replace water heater - new on demand gas water heater (199MBH/0.98UEF) PLEASE NOTE: APPLICABLE ONLY TO. 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 |
|---|---|---|---|---|
| Mar 17, 2026 | Mechanical (HVAC) | Replace water heater - new on demand gas water heater (199MBH/0.98UEF) 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 eviden | $6,325 | [MEC2026-00396](https://nearbypermits.com/boulder/permit/MEC2026-00396/) |
| Oct 8, 2024 | Mechanical (HVAC) | Replace furnace & AC - new 70K BTU 96% furnace & 3 Ton 18 SEER AC | $17,424 | [MEC2024-01449](https://nearbypermits.com/boulder/permit/MEC2024-01449/) |
| Jan 6, 2022 | Electrical | Install 7.40 kW solar PV system. Grid tied and flush mounted to roof of single family home. Revisions received 1/10/20. | $16,650 | [ELE2022-00001](https://nearbypermits.com/boulder/permit/ELE2022-00001/) |
| Mar 3, 2020 | Mechanical (HVAC) | VOID-180 Days no activity *Installing replacement Water Heater, 40 Gallon, Vent Damper, Natural Gas, Like for Like | $1,999 | [MEC2020-00356](https://nearbypermits.com/boulder/permit/MEC2020-00356/) |
| Jan 20, 2009 | Electrical | Enclose 70 s.f. covered alcove between attached garage and residnece for mudroom. | $500 | [PMT2008-04508-ELE](https://nearbypermits.com/boulder/permit/PMT2008-04508-ELE/) |
| Jan 20, 2009 | Addition | Enclose 70 s.f. covered alcove between attached garage and residnece for mudroom. | $11,131 | [PMT2008-04508](https://nearbypermits.com/boulder/permit/PMT2008-04508/) |
| Mar 17, 2006 | Mechanical (HVAC) | Mechanical permit to replace forced-air furnace and add new air conditioning. | $7,040 | [PMT2006-00914-MEC](https://nearbypermits.com/boulder/permit/PMT2006-00914-MEC/) |
| Jan 11, 2006 | Fence, wall or deck | Fence permit: 116 linear feet of 5' and 6' privacy fence | $2,300 | [PMT2006-00120-FEN](https://nearbypermits.com/boulder/permit/PMT2006-00120-FEN/) |

## 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 Ludlow St with permits, nearest house number first:

- [4380 Ludlow St](https://nearbypermits.com/boulder/address/4380-ludlow-st/): newest permit Dec 6, 2024
- [4475 Ludlow St](https://nearbypermits.com/boulder/address/4475-ludlow-st/): newest permit Dec 17, 2024
- [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
- [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

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 16:51 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 8 permits at this address: https://nearbypermits.com/boulder/address/4425-ludlow-st/