Know This Place

4075 20th Street

Castro (Eureka Valley) · San Francisco, CA 94114

  • Built 1979
  • Single-family house
  • 2 stories
  • Zoned RH-3
  • District 8
  • Historic status: unevaluated
37.7576, −122.4318 Street View appears here once a Google Maps embed key is configured.
2,724 sq ftBuilding area
2,848 sq ftLot area
7Rooms · 2 baths

Permit history

  1. May 2026

    Revision to permit application 202602095527: omit infill of existing floor opening at 3rd floor bedroom from scope.

    Complete Permit 202605211679 $$$ $1
  2. Feb 2026

    1)remove e bearing wall between kicthen and dining room. 2)relocate e laundry room to 3rd floor. 3)infill e floor opening at 3rd floor. 4)renovate e bathroom at 3rd floor.

    Complete Permit 202602095527 $$$ $100,000
  3. Dec 2016

    Reroofing.

    Complete Permit 201612013925 $$$ $12,600
  4. Jun 2014

    Add new garage, install new windows and siding, square off bay window.

    Issued Permit 201406300043 $$$ $225,000
  5. Jan 2013

    Repair of 2 & 1/2 bathrooms & hallway due to water damage on 2nd & 3rd fl. repair of existing exterior front stairs. legalize bathroom on 1st floor.

    Expired Permit 201301087431 $$$ $25,000
  6. Oct 2011

    Reroofing.

    Issued Permit 201110056131 $$$ $15,100
  7. Mar 1991

    Reroofing.

    Expired Permit 9104275 $$$ $6,645
  8. May 1990

    Remove and install windows over double studs.

    Complete Permit 9009074 $$$ $2,841

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