# Building permits at 4275 Milliken Ct, Boulder, CO

Two permits here in the last two years. The newest, Jan 13: 150 amp panel upgrade 100 amp sub panel level 2 grounding system micro surge protection 50 amp dedicated. 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 |
|---|---|---|---|---|
| Jan 13, 2026 | Electrical | 150 amp panel upgrade 100 amp sub panel level 2 grounding system micro surge protection 50 amp dedicated circuit | $20,760 | [ELE2026-00016](https://nearbypermits.com/boulder/permit/ELE2026-00016/) |
| Nov 4, 2025 | Mechanical (HVAC) | Voided for inactivity - no inspection within 180 days. Replace furnace: located in crawlspace, and AC unit Furnace: SS 80% eff/70k btu. AC: 2.5-ton coil/14 seer condenser. Electrical re hook: no new electrical work done Any electrical work required beyond a like-for-like replacement of equipment wil | $19,000 | [MEC2025-01919](https://nearbypermits.com/boulder/permit/MEC2025-01919/) |

## 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 Milliken Ct with permits, nearest house number first:

- [4255 Milliken Ct](https://nearbypermits.com/boulder/address/4255-milliken-ct/): newest permit Oct 8, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-09 12:55 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Both permits at this address: https://nearbypermits.com/boulder/address/4275-milliken-ct/