# New building permit BLD-NRE2025-00037 at 3720 Walnut St, Boulder

Boulder Planning and Development Services permit BLD-NRE2025-00037: issued Mar 20, 2026 for new building work at 3720 Walnut St. New 3-story non-residential building for Rocky Mountain Rescue. First floor (9,683 SF) with accessory storage, assembly, business and exercise room uses. Second floor (7,839 SF) with accessory storage, assembly, business and kitchen uses. The third floor (1,025 SF) with accessory storage, assembly and exercise room uses.

- Permit number: BLD-NRE2025-00037
- Issued: Mar 20, 2026
- Type of work: New building (city: Building Permit - Non-Residential, New)
- Status: Issued (city: Issued)
- Reported cost: $15,719,545
- ZIP code: 80301
- All permits at this address: https://nearbypermits.com/boulder/address/3720-walnut-st/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-15 06:33 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 3720 Walnut St: https://nearbypermits.com/boulder/address/3720-walnut-st/