# Alteration or repair permit 9723484 at 450 Irwin St, San Francisco

SF Department of Building Inspection permit 9723484: issued Nov 20, 1997 for alteration or repair work at 450 Irwin St. install dust collector tie into deck/remount new sleepers on.

- Permit number: 9723484
- Issued: Nov 20, 1997
- Type of work: Alteration or repair (city: otc alterations permit, school)
- Status: Finished (city: complete)
- Reported cost: $5,000
- ZIP code: 94107
- All permits at this address: https://nearbypermits.com/san-francisco/address/450-irwin-st/

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Source: SF Department of Building Inspection permit data (https://data.sf.gov/d/i98e-djp9). Checked 2026-10-18 10:09 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 450 Irwin St: https://nearbypermits.com/san-francisco/address/450-irwin-st/