Know This Place

3328–3330 21st Street

Mission · San Francisco, CA 94110

  • Built 1978
  • Two-flat
  • 3 stories
  • Zoned RH-3
  • District 9
  • Historic status: historic resource
37.7571, −122.4219 Street View appears here once a Google Maps embed key is configured.
3,809 sq ftBuilding area
2,900 sq ftLot area
14Rooms · 5 baths

Permit history

  1. Mar 2026

    Revision to 202506259416. interior remodel of 3rd floor with added electrical scope per revised plans. work includes installation of new lighting fixtures and upgrade to electrical service panel.

    Issued Permit 202603046919 $$$ $20,000
  2. Feb 2026

    Replace existing rear stairs with new going up to 3rd floor.

    Filed Permit 202602035138 $$$ $20,000
  3. Jun 2025

    Interior remodel of existing bathrooom and kitchen on the 3rd fl.

    Issued Permit 202506259416 $$$ $25,000
  4. Oct 1995

    Reroofing.

    Expired Permit 9516416 $$$ $3,500
  5. May 1992

    Horizontal addition.

    Expired Permit 9207914 $$$ $1,600
  6. Jan 1989

    Horizontal addition.

    Complete Permit 8901580 $$$ $4,000
  7. Jun 1981

    Additions alterations or repairs.

    Expired Permit 8109666 $$$ $7,000

Not yet documented: the architect and builder and the early residents. Know any of it? Tell us — just describe it in plain words.