{
  "address": "3848 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/3848/",
  "apn": "3603017",
  "block": "3603",
  "lot": "017",
  "eas_baseid": "361928",
  "coordinates": {
    "lat": 37.7564,
    "lng": -122.433516
  },
  "parcel": {
    "year_built": 1905,
    "units": 1,
    "stories": 3,
    "rooms": 6,
    "bathrooms": 3,
    "bedrooms": 2,
    "lot_area_sqft": 2848,
    "building_area_sqft": 2953,
    "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 3848 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 442078,
    "assessed_improvement_value": 730256,
    "last_sale_date": "1991-07-10"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District",
    "yearbuilt": "1905",
    "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": "202309257358",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-09-25",
      "status_date": "2023-10-27",
      "estimated_cost": 17200,
      "revised_cost": 17200,
      "description": "reroofing. no work to (e) roof structural sheathing.",
      "source": "sf-building-permits"
    },
    {
      "number": "M124009",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2008-06-26",
      "status_date": "2008-06-26",
      "revised_cost": 1,
      "description": "street space permit only.",
      "source": "sf-building-permits"
    },
    {
      "number": "200804119450",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-04-11",
      "status_date": "2008-12-23",
      "estimated_cost": 9500,
      "revised_cost": 10000,
      "description": "revision to application 200619011232, structural revisions to concrete wall for rear yard landscaping.",
      "source": "sf-building-permits"
    },
    {
      "number": "200609011232",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2006-09-01",
      "status_date": "2008-12-23",
      "estimated_cost": 400000,
      "revised_cost": 400000,
      "description": "horizontal addition to ground and second floors. new canilevered deck on 2nd floor. vertical addition to rear of building for new attic space. all exterior alterations to rear of bldg.",
      "source": "sf-building-permits"
    },
    {
      "number": "9300070",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1993-01-05",
      "status_date": "1993-03-09",
      "estimated_cost": 2500,
      "description": "remove & replace rotted decking and handrail at rear house",
      "source": "sf-building-permits"
    },
    {
      "number": "9216955",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1992-10-02",
      "status_date": "1993-03-16",
      "estimated_cost": 1000,
      "description": "found-2 conc ret wls-repl 1 flr bem- #9207685 rev",
      "source": "sf-building-permits"
    },
    {
      "number": "9207685",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1992-05-12",
      "status_date": "1993-03-16",
      "estimated_cost": 20000,
      "description": "rebuild bathroom at first floor,rmodel 2nd flr powder room",
      "source": "sf-building-permits"
    },
    {
      "number": "9207281",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1992-05-05",
      "status_date": "1993-02-26",
      "estimated_cost": 8000,
      "description": "reroofing",
      "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=3848",
      "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=3603017&$order=closed_roll_year%20DESC&$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=017",
      "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=3603017",
      "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(-122.43351623649109%2037.756400186628305)%27)",
      "retrieved": "2026-07-28"
    }
  ]
}