# Building permits at 515 Alpine Ave, Boulder, CO

One permit here in the last two years. The newest, Sep 16, 2025: One time 180-day permit extension granted. 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 |
|---|---|---|---|---|
| Sep 16, 2025 | New building | One time 180-day permit extension granted. All work and inspections must be completed by 8/10/2026. New 6,578 s.f. single family residence. | $1,100,000 | [BLD-SFD2024-00223](https://nearbypermits.com/boulder/permit/BLD-SFD2024-00223/) |

## More on this street

Other addresses on Alpine Ave with permits, nearest house number first:

- [533 Alpine Ave](https://nearbypermits.com/boulder/address/533-alpine-ave/): newest permit May 27, 2025
- [428 Alpine Ave](https://nearbypermits.com/boulder/address/428-alpine-ave/): newest permit Dec 10, 2025
- [605 Alpine Ave](https://nearbypermits.com/boulder/address/605-alpine-ave/): newest permit Jan 16, 2026
- [422 Alpine Ave](https://nearbypermits.com/boulder/address/422-alpine-ave/): newest permit May 30, 2025
- [417 Alpine Ave](https://nearbypermits.com/boulder/address/417-alpine-ave/): newest permit Dec 12, 2024
- [618 Alpine Ave](https://nearbypermits.com/boulder/address/618-alpine-ave/): newest permit Mar 26, 2026
- [408 Alpine Ave](https://nearbypermits.com/boulder/address/408-alpine-ave/): newest permit Jun 5, 2026
- [402 Alpine Ave](https://nearbypermits.com/boulder/address/402-alpine-ave/): newest permit Apr 3, 2026
- [808 Alpine Ave](https://nearbypermits.com/boulder/address/808-alpine-ave/): newest permit May 22, 2025
- [815 Alpine Ave 2](https://nearbypermits.com/boulder/address/815-alpine-ave-2/): newest permit Mar 16, 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 12:59 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

The one permit at this address: https://nearbypermits.com/boulder/address/515-alpine-ave/