# Building permits at 140 55th St, Boulder, CO

Two permits on record here. The newest, Apr 1: Lot 8. New affordable 1869 sq. ft. two-story single family detached home. 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 |
|---|---|---|---|---|
| Apr 1, 2026 | New building | Lot 8. New affordable 1869 sq. ft. two-story single family detached home. | $263,794 | [BLD-SFD2025-00473](https://nearbypermits.com/boulder/permit/BLD-SFD2025-00473/) |
| Nov 21, 2025 | Fire systems | 13D Residential Fire Sprinkler System (FSN13D) | $6,175 | [FIR2025-00446](https://nearbypermits.com/boulder/permit/FIR2025-00446/) |

## 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
- [150 55th St](https://nearbypermits.com/boulder/address/150-55th-st/): newest permit Apr 1, 2026
- [120 55th St](https://nearbypermits.com/boulder/address/120-55th-st/): newest permit Aug 20, 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

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 15:23 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/140-55th-st/