# Alteration or repair permit 9907901 at 450 Irwin St, San Francisco

SF Department of Building Inspection permit 9907901: issued Apr 23, 1999 for alteration or repair work at 450 Irwin St. 9418445, 9600323, 9517367, 9723927, 9813117, 9609230 9801227.

- Permit number: 9907901
- Issued: Apr 23, 1999
- Type of work: Alteration or repair (city: otc alterations permit, school)
- Status: Finished (city: complete)
- Reported cost: Not listed
- 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 08:40 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/