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37.7559, −122.4334 A locator map appears here once a Mapbox token is configured.

3847 21st Street

Castro (Eureka Valley) · San Francisco, CA 94114

  • Built 1900
  • Single-family house
  • 2 stories
  • Zoned RH-2
  • District 8
  • Historic status: unevaluated
37.7559, −122.4334 Street View appears here once a Google Maps embed key is configured.
2,392 sq ftBuilding area
2,848 sq ftLot area
8Rooms · 4 bed, 2 bath
  1. after 1947

    The Office of the Assessor-Recorder photographed the property for tax assessment.

    Assessor-Recorder Photographs (SFP 23), San Francisco Public Library
  2. April 4, 1975

    The Office of the Assessor-Recorder photographed the property for tax assessment.

    Assessor-Recorder Photographs (SFP 23), San Francisco Public Library
  3. Sep 1982

    Additions alterations or repairs.

    Cancelled Permit 8207456 $$$ $7,500
  4. Oct 1983

    Demolish garage & front stairway replace.

    Expired Permit 8310629 $$$ $22,000
  5. May 1984

    Construct rear deck & stairs.

    Expired Permit 8404803 $$$ $3,000
  6. Jun 1989

    Repair 600 siding at rear elevation of house, & windows.

    Complete Permit 8909777 $$$ $6,500
  7. Jul 2018

    Inkind repair of front stair treads (less than 50%); repair fungal damanged front treat & risers, replace in-kind with pt wood less than 50 or less.

    Complete Permit 201807184870 $$$ $5,000
  8. Aug 2025

    Remodel on the third floor of existing sfd (three stories and attic). including: demolition of fireplace and hearth, addition of bathroom, revisions to existing bathroom and closet layout, new window openings in west facade and new finished througout the floor.

    Issued Permit 202508143038 $$$ $40,000

Not yet documented: the architect and builder and the early residents. Submit an update