# Building permits at 120 55th St, Boulder, CO

120 55th St: demolition permitted Nov 20, 2025, a new building Aug 20.

Four permits on record here. The newest, Aug 20: Lot 1, Block 2. 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 |
|---|---|---|---|---|
| Aug 20, 2026 | New building | Lot 1, Block 2. New 6,447 sq. ft. residence w/attached garage | $2,000,000 | [BLD-SFD2025-00573](https://nearbypermits.com/boulder/permit/BLD-SFD2025-00573/) |
| Nov 20, 2025 | Demolition | Remove existing house | Not listed | [DEM2025-00085](https://nearbypermits.com/boulder/permit/DEM2025-00085/) |
| Oct 14, 2025 | Fence, wall or deck | One time 180-day permit extension granted. All work and inspections must be completed by 01/24/2027 Unconditioned 1478 sf garage -- no plumbing, no mechanical, minimal electrical. | $187,000 | [BLD-ACC2025-00062](https://nearbypermits.com/boulder/permit/BLD-ACC2025-00062/) |
| Aug 28, 2025 | Fence, wall or deck | One time 180-day permit extension granted. All work and inspections must be completed by 01/20/2027 Peacock Pen 1-8-26 Update to add stucco | $54,000 | [BLD-ACC2025-00061](https://nearbypermits.com/boulder/permit/BLD-ACC2025-00061/) |

## More on this street

Other addresses on 55th St with permits, nearest house number first:

- [130 55th St](https://nearbypermits.com/boulder/address/130-55th-st/): newest permit Apr 1, 2026
- [140 55th St](https://nearbypermits.com/boulder/address/140-55th-st/): newest permit Apr 1, 2026
- [150 55th St](https://nearbypermits.com/boulder/address/150-55th-st/): newest permit Apr 1, 2026
- [160 55th St](https://nearbypermits.com/boulder/address/160-55th-st/): newest permit Apr 29, 2026
- [170 55th St](https://nearbypermits.com/boulder/address/170-55th-st/): newest permit Apr 27, 2026
- [180 55th St](https://nearbypermits.com/boulder/address/180-55th-st/): newest permit Apr 27, 2026
- [190 55th St](https://nearbypermits.com/boulder/address/190-55th-st/): newest permit Apr 27, 2026
- [9 55th St](https://nearbypermits.com/boulder/address/9-55th-st/): newest permit Jan 29, 2025
- [640 55th St](https://nearbypermits.com/boulder/address/640-55th-st/): newest permit Aug 26, 2026
- [650 55th St](https://nearbypermits.com/boulder/address/650-55th-st/): newest permit Jul 7, 2026

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 07:42 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/120-55th-st/