# Fire systems permit FIR2025-00105 at 1603 Walnut St, Boulder

Boulder Planning and Development Services permit FIR2025-00105: issued May 16, 2025 for fire systems work at 1603 Walnut St. This project involves installing a new NFPA 13 (2022) compliant sprinkler system in a 4-story apartment building. It includes a dry system for the parking garage and four wet systems zoned by floor, with CPVC piping on levels 2?4 and steel piping on level 1. A manual wet standpipe system will be installed per NFPA 14, requiring 137 PSI at the FDC. Sprinklers are not needed in the traction elevator shaft per code. Maximum residential sprinkler spacing is 20' x 20', with light and ordinary hazard areas limited to 225 and 130 square feet respectively. (FSN13).

- Permit number: FIR2025-00105
- Issued: May 16, 2025
- Type of work: Fire systems (city: Fire Permit, Fire Permit)
- Status: Issued (city: Issued)
- Reported cost: $200,000
- ZIP code: 80302
- All permits at this address: https://nearbypermits.com/boulder/address/1603-walnut-st/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 11:33 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 1603 Walnut St: https://nearbypermits.com/boulder/address/1603-walnut-st/