Know This Place

3680–3684 20th Street

Mission · San Francisco, CA 94110

  • Built 1911
  • 4-unit building with a ground-floor store
  • 2 stories
  • Zoned RH-3
  • District 9
  • Historic status: not a historical resource
37.7586, −122.4231 Street View appears here once a Google Maps embed key is configured.
2,844 sq ftBuilding area
2,848 sq ftLot area
13Rooms · 3 baths

Permit history

  1. Jun 2026

    One unit: kitchen and bathroom remodel like for like, relocate existing tankless water heater to 1st floor of building.

    Issued Permit 202606082775 $$$ $70,000
  2. Jun 2025

    1/f: remodel existing commerical space to new adu per planning code section 207.1 (3680 20th st). new adu include bedroom, bathroom, kitchen, and dining room.

    Issued Permit 202502240913 $$$ $98,000
  3. Aug 2024

    Reroofing. replace scupper roof drain and downspout in kind. no work to existing roof structural sheathing.

    Complete Permit 202408078116 $$$ $10,000
  4. Jan 2013

    Replace tiles of bathroom and kitchen. replace cabinets of kitchen. no windows and doors. no sink and no countertop replacement.

    Issued Permit 201301248649 $$$ $3,500
  5. Sep 2010

    To comply with his nov #201060089 & 201062186 dated 8/5/2010 & 8/11/2010.

    Complete Permit 201009070316 $$$ $1,000
  6. May 2003

    Comply with nov200340012 see attaced.

    Complete Permit 200305084145 $$$ $70
  7. Feb 2002

    Repair rear stairs per item#1 of this complaint#200224668. repair/comply with items 2thru5 of complain.

    Complete Permit 200202118894 $$$ $200
  8. May 1996

    Reroofing.

    Expired Permit 9608942 $$$ $3,000
  9. May 1982

    Additions alterations or repairs.

    Complete Permit 8203857 $$$ $1,600

1 nominal $1 street-space permit is omitted.

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