Know This Place

3931 18th Street

Castro (Eureka Valley) · San Francisco, CA 94114

  • Built 1900
  • 3-unit building with a ground-floor store
  • 2 stories
  • Zoned RH-3
  • District 8
  • Historic status: unevaluated
37.7609, −122.4314 Street View appears here once a Google Maps embed key is configured.
2,908 sq ftBuilding area
2,848 sq ftLot area
11Rooms · 3 bed, 3 bath

Permit history

  1. Nov 2025

    Interior remodel of 2nd fl, reconfigure partitions, add full bath, remodel existing kitchen & bath. add new tankless water heater, add new electrical heat pump heating/cooling. replace existing windows, add new skylights and front door. replace knob & tube with new electrical, new lighting.

    Filed Permit 202511250371 $$$ $305,000
  2. Oct 2002

    Add storage at rear of bldng on ground lvel/add porch roof.

    Cancelled Permit 9808684 $$$ $5,000
  3. Nov 1999

    Reroofing.

    Complete Permit 9923698 $$$ $4,825
  4. Mar 1999

    Cap foundation & dry rot work.

    Complete Permit 9904213 $$$ $1,000
  5. Nov 1998

    Correct work completed without a building permit.

    Complete Permit 9823003 $$$ $5,000

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.