{
  "address": "4231–4233 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/4231/",
  "apn": "2752030",
  "block": "2752",
  "lot": "030",
  "eas_baseid": "345564",
  "coordinates": {
    "lat": 37.757408,
    "lng": -122.435384
  },
  "address_range": "4231–4233",
  "street_numbers_on_parcel": [
    "4231",
    "4233"
  ],
  "parcel": {
    "year_built": 1898,
    "units": 2,
    "stories": 3,
    "rooms": 11,
    "bathrooms": 4,
    "bedrooms": 5,
    "lot_area_sqft": 2750,
    "building_area_sqft": 3220,
    "lot_depth_ft": 10,
    "use": "Multi-Family Residential",
    "property_class": "Dwellings - Apt 4 units or less",
    "construction_type_code": "NA",
    "zoning": "RH-3",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "4233 4231 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2962615,
    "assessed_improvement_value": 1269691,
    "last_sale_date": "2021-06-01"
  },
  "historic_status": {
    "ceqa_status_code": "B",
    "ceqa_status_code_article_10_11": "B",
    "ceqa_status_label": "Unevaluated",
    "reason": "No evaluation and 45 years or older",
    "yearbuilt": "1898",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202507221362",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2025-07-22",
      "status_date": "2025-08-08",
      "estimated_cost": 18000,
      "revised_cost": 45000,
      "description": "replace front exterior stair for proper rise and run. no changes to main building facade or interior. new garage storage space.",
      "source": "sf-building-permits"
    },
    {
      "number": "202110150552",
      "type": "otc alterations permit",
      "status": "withdrawn",
      "filed": "2021-10-15",
      "status_date": "2025-08-08",
      "estimated_cost": 8000,
      "revised_cost": 0,
      "description": "replace front stair for proper rise & run. no change to buiding facade or interior. new garage space.",
      "source": "sf-building-permits"
    },
    {
      "number": "201401156306",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-01-15",
      "status_date": "2014-05-05",
      "estimated_cost": 15000,
      "revised_cost": 15000,
      "description": "revision to appl #2013.0515.7022 -new wood frame windows to replace (e), (n) wood railing around front stairs, deck to replace existing stucco wall, metal railing, (n) one entry door to replace existing two doors, (n) wood siding to replace (e) stucco siding.",
      "source": "sf-building-permits"
    },
    {
      "number": "201305157022",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-05-15",
      "status_date": "2014-05-05",
      "estimated_cost": 3000,
      "revised_cost": 3000,
      "description": "revision to app#201212317012. change beam sizes floor joists size. concrete pier. add concrete slab on grade.",
      "source": "sf-building-permits"
    },
    {
      "number": "201212317012",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-12-31",
      "status_date": "2014-05-05",
      "estimated_cost": 32000,
      "revised_cost": 225000,
      "description": "remodel 2 kitchens, all baths, new laundry room, side and rear windows. not visible from the street.",
      "source": "sf-building-permits"
    },
    {
      "number": "M352467",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-10-11",
      "status_date": "2012-10-11",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201210051424",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-10-05",
      "status_date": "2014-05-05",
      "estimated_cost": 20000,
      "revised_cost": 40000,
      "description": "expand (e) garage at ground floor; remodel 2 bathrooms and 2 kitchen in kind",
      "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=20TH&street_type=ST&address_number=4231",
      "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=2752030&$order=closed_roll_year%20DESC&$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=2752&lot=030",
      "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=2752030",
      "retrieved": "2026-07-28"
    }
  ]
}