{
  "address": "3816 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/3816/",
  "apn": "3603009",
  "block": "3603",
  "lot": "009",
  "eas_baseid": "361920",
  "coordinates": {
    "lat": 37.756425,
    "lng": -122.432825
  },
  "parcel": {
    "year_built": 1907,
    "units": 1,
    "stories": 2,
    "rooms": 6,
    "bathrooms": 2,
    "lot_area_sqft": 2537.5,
    "building_area_sqft": 1450,
    "lot_depth_ft": 1.5,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 3816 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2094653,
    "assessed_improvement_value": 897703,
    "last_sale_date": "2013-06-25"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District",
    "yearbuilt": "1907",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Castro & Liberty Streets Historic District",
    "california_register_status": "Eligible (not listed)",
    "national_register_status": "Not listed",
    "article_10_11_status": "No local landmark protection",
    "local_landmark_protection": false,
    "period_of_significance": "1897–1906",
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "201305308277",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-05-30",
      "status_date": "2013-05-31",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to renew app#200308152254 for final inspection. work originally performed via 200312031488 and 200810315603",
      "source": "sf-building-permits"
    },
    {
      "number": "201209200246",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-09-20",
      "status_date": "2013-05-20",
      "estimated_cost": 13500,
      "revised_cost": 13500,
      "description": "1)provide and install one bathroom at 2nd floor in bedroom located at west side. bathroom will have old shower unit, lav sink, toilet, vent one circuit. 2)extg bathroom:replace one toilet, lav sink and tub. reconfigure per owner, provide one circuit and vent.",
      "source": "sf-building-permits"
    },
    {
      "number": "201206273623",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-06-27",
      "status_date": "2012-08-29",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa # 200801293535. all work is complete.",
      "source": "sf-building-permits"
    },
    {
      "number": "201206273625",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-06-27",
      "status_date": "2012-08-29",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa # 200810315603. permit originally filled by sf garage (john pollard) work originally performed by sf garage later corrected by art campos and co.",
      "source": "sf-building-permits"
    },
    {
      "number": "201206273627",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-06-27",
      "status_date": "2012-08-29",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa # 200704118551. all work is complete. ac company did the repair work for top deck 2'x6' & other dry rot replacement via pa # 200610175274.",
      "source": "sf-building-permits"
    },
    {
      "number": "M260326",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2011-05-10",
      "status_date": "2011-05-10",
      "revised_cost": 0,
      "description": "streetspace",
      "source": "sf-building-permits"
    },
    {
      "number": "201004079782",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-04-07",
      "status_date": "2012-08-29",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "for administrative purposes only to pay penalty fee's associated with nov 200678829. permit application 200810315603 has been filed to comply with the items noted on 200678829 and nov 200702562.",
      "source": "sf-building-permits"
    },
    {
      "number": "200810315603",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2008-10-31",
      "status_date": "2012-08-29",
      "estimated_cost": 1000,
      "revised_cost": 56000,
      "description": "to comply w/ nov 200702562, submit plan to show \"as built\" conditions in garage construction, also new bathrm, new spiral stairs at extend basement. install hydrolic heating system.",
      "source": "sf-building-permits"
    },
    {
      "number": "200801293535",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2008-01-29",
      "status_date": "2008-10-01",
      "estimated_cost": 2000,
      "revised_cost": 2000,
      "description": "comply with complaint 200840569, replace exterior siding and trim (in kind) at rear kitchen bay popout area, approx size of area 12' x 7'. install new gutter and downspout at rear wall of building.",
      "source": "sf-building-permits"
    },
    {
      "number": "200709193140",
      "type": "otc alterations permit",
      "status": "revoked",
      "filed": "2007-09-19",
      "status_date": "2008-06-24",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "install spiral stair on sfd between basement to 1st floor",
      "source": "sf-building-permits"
    },
    {
      "number": "200704118551",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2007-04-11",
      "status_date": "2008-10-01",
      "estimated_cost": 5100,
      "revised_cost": 5100,
      "description": "renew app #200610175274 and 200505243306 for finalize work for inspection",
      "source": "sf-building-permits"
    },
    {
      "number": "200610175274",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2006-10-17",
      "status_date": "2008-10-01",
      "estimated_cost": 500,
      "revised_cost": 1000,
      "description": "create a foffit on easter wall to enclosed wate ines maintain headd rail @ , install crown molding at the permiter of lower level bedroom,repair and replaceing deck planks with the same material, less that 50% of repair, portch san and paint kitchen popout, main level, via assess a temporary scafold",
      "source": "sf-building-permits"
    },
    {
      "number": "200610114752",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "2006-10-11",
      "status_date": "2021-04-16",
      "estimated_cost": 34500,
      "description": "construct a horizontal 2 floors addition at the rear portion of the building. the horizontal livable addition will not exceed the required rear yard open space required by the city. basement stairs to yard will need variance.",
      "source": "sf-building-permits"
    },
    {
      "number": "200505243306",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2005-05-24",
      "status_date": "2008-10-01",
      "estimated_cost": 8000,
      "revised_cost": 8000,
      "description": "kitchen remode, replace cabinets & countertop, paint, replace linoleum",
      "source": "sf-building-permits"
    },
    {
      "number": "M30997",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2005-01-28",
      "status_date": "2005-01-28",
      "revised_cost": 0,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "200409214761",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2004-09-21",
      "status_date": "2008-10-01",
      "estimated_cost": 20000,
      "revised_cost": 20000,
      "description": "renew app #200312031488 to install new garage",
      "source": "sf-building-permits"
    },
    {
      "number": "M29345",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2004-09-21",
      "status_date": "2004-09-21",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "200406176658",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "2004-06-17",
      "status_date": "2006-12-05",
      "estimated_cost": 40000,
      "description": "rev. to previous permit applic. #2003/12/03/1488 according to attached dplans drawn by howard howell",
      "source": "sf-building-permits"
    },
    {
      "number": "200312031488",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2003-12-03",
      "status_date": "2008-10-01",
      "estimated_cost": 15000,
      "revised_cost": 15000,
      "description": "install new according to plans, drawn by harold howell, dated 9/15/03",
      "source": "sf-building-permits"
    },
    {
      "number": "200308152254",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2003-08-15",
      "status_date": "2008-10-01",
      "estimated_cost": 1000,
      "revised_cost": 1000,
      "description": "exploratory demolition in basement area only. demolition not to exceed 50% of all walls.",
      "source": "sf-building-permits"
    }
  ],
  "sources": [
    {
      "id": "sf-eas-addresses",
      "name": "SF Enterprise Addressing System via DataSF",
      "query": "https://data.sfgov.org/resource/3mea-di5p.json?street_name=21ST&street_type=ST&address_number=3816",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-assessor-roll",
      "name": "SF Office of the Assessor-Recorder via DataSF (2025 secured roll)",
      "query": "https://data.sfgov.org/resource/wv5m-vpq2.json?parcel_number=3603009&$order=closed_roll_year%20DESC&$limit=1",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-building-permits",
      "name": "SF Dept. of Building Inspection via DataSF",
      "query": "https://data.sfgov.org/resource/i98e-djp9.json?block=3603&lot=009",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-planning",
      "name": "SF Planning Department — Historic Resource Status by Parcel via DataSF",
      "query": "https://data.sfgov.org/resource/3tsw-4idn.json?apn=3603009",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-historic-districts",
      "name": "SF Planning Department — Historic Districts via DataSF",
      "query": "https://data.sfgov.org/resource/63x5-g3m4.json?$where=intersects(the_geom,%20%27POINT(-122.43282478377901%2037.7564246632528)%27)",
      "retrieved": "2026-07-28"
    },
    {
      "id": "eureka-valley-context-statement",
      "name": "Elaine B. Stiles, Eureka Valley Historic Context Statement, prepared for the Eureka Valley Neighborhood Association, adopted by the Historic Preservation Commission December 20, 2017",
      "query": "http://default.sfplanning.org/Preservation/EurekaValleyHCS/hp_eureka_valley_hcs_HCS_FINAL-122017.pdf",
      "listing": "https://sfplanning.org/project/sf-histories-historic-context-statements#completed",
      "label": "Eureka Valley Historic Context Statement, adopted 2017",
      "retrieved": "2026-08-14"
    }
  ],
  "historic_survey": {
    "survey": "Eureka Valley Historic Context Statement (2017)",
    "source": "eureka-valley-context-statement",
    "style": "Queen Anne",
    "year_built_as_surveyed": "1903-1904",
    "address_as_surveyed": "3816 to 3836 21st Street",
    "note": "Listed among the houses the builder John (or Jonathan) Anderson put up in Eureka Valley; the statement gives his signature detail as an urn of flowers at the outer edges of the second-storey wall beneath the gable. The statement is reconnaissance-level and says inclusion in it is not a judgement on a building's worthiness for preservation. It counts fourteen 1.5-storey end-gable dwellings with bay window and entry porch in the group and names it as a concentration of developer housing worth studying as a potential historic district."
  },
  "building": {
    "builder": "John Anderson"
  }
}