Know This Place

3364 21st Street

Mission · San Francisco, CA 94110

  • Built 1900
  • 3-unit apartment building
  • 2 stories
  • Zoned RH-3
  • District 9
  • Historic status: historic resource
37.7571, −122.4226 Street View appears here once a Google Maps embed key is configured.
2,580 sq ftBuilding area
2,875 sq ftLot area
10Rooms · 3 baths

Permit history

  1. Jun 2026

    3/f renovation within existing 3-unit residential building. scope includes removal of existing interior walls & associated structural modifications. installation of new structural beam(s), removal of exterior door, window, & potion of rear exterior wall, install of new approx 11'x8' nanawall folding door system.

    Filed Permit 202606253916 $$$ $15,000
  2. Aug 2025

    One unit: in kind remodel of existing kitchen and bathroom, top unit.

    Issued Permit 202508253832 $$$ $10,000
  3. Feb 2007

    Replacing three posts on a 2 story deck/stairs. to comply with#20079896 his nov dated 02/16/07.

    Complete Permit 200702234745 $$$ $1,500
  4. Nov 2003

    Reroofing.

    Expired Permit 200311170406 $$$ $7,280
  5. Jan 1990

    Permit #591935 has expired need a final inspection.

    Complete Permit 9001661 $$$ $100
  6. Apr 1988

    Enclose & horizontal addition.

    Expired Permit 8804173 $$$ $50,000
  7. Nov 1986

    Replace & repair missing or damaged mouldings, windows.

    Complete Permit 8614147 $$$ $15,000

1 nominal $1 street-space permit is omitted.

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