{
  "address": "4142 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/4142/",
  "apn": "2750021",
  "block": "2750",
  "lot": "021",
  "eas_baseid": "345460",
  "coordinates": {
    "lat": 37.756134,
    "lng": -122.437506
  },
  "parcel": {
    "year_built": 1908,
    "units": 1,
    "stories": 2,
    "rooms": 7,
    "bathrooms": 3,
    "bedrooms": 3,
    "lot_area_sqft": 2437.5,
    "building_area_sqft": 2682,
    "basement_area_sqft": 462,
    "lot_depth_ft": 97.5,
    "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 4142 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1407558,
    "assessed_improvement_value": 1052810,
    "last_sale_date": "2004-03-12"
  },
  "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": "1908",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202301120070",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-01-12",
      "status_date": "2023-02-27",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa#202210174468, 202211297281, &202212208758. new window at west elevation at kitchen. 2nd floor to be changed from slider to double hung.",
      "source": "sf-building-permits"
    },
    {
      "number": "202212208758",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-12-20",
      "status_date": "2023-02-27",
      "estimated_cost": 2000,
      "revised_cost": 2000,
      "description": "revision to pa 2022-1017-4468 & 2022-1129-7281 provide new window at west (rear bldg) elevation at 2nd floor kitchen",
      "source": "sf-building-permits"
    },
    {
      "number": "202211297281",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-11-29",
      "status_date": "2023-02-27",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "rev to pa# 2022-1017-4468; proposed new window to be changed from fixed to double hung (not visible from public right of way",
      "source": "sf-building-permits"
    },
    {
      "number": "202211096192",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-11-09",
      "status_date": "2023-04-10",
      "estimated_cost": 11000,
      "revised_cost": 11000,
      "description": "(3) windows like for like. wood to wood within the existing openings. u factor less than 0.30",
      "source": "sf-building-permits"
    },
    {
      "number": "202210174468",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-10-17",
      "status_date": "2023-02-27",
      "estimated_cost": 35000,
      "revised_cost": 40000,
      "description": "remodel master bedroom at 3rd fl. add 2 skylights, remove stair a rear bedroom 3rd floor by fill in",
      "source": "sf-building-permits"
    },
    {
      "number": "202209273208",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-09-27",
      "status_date": "2023-02-27",
      "estimated_cost": 40000,
      "revised_cost": 52806,
      "description": "remodel (2) bathrooms at 3rd floor. remodel kitchen and vanity at second floor. remodel bathroom at 1st floor. remove and replace cabinets and fixtures (appliances).",
      "source": "sf-building-permits"
    },
    {
      "number": "200305295789",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2003-05-29",
      "status_date": "2003-11-20",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "truss components pre-fab under permit #2002/09/06/5832 as required by p/c engineer",
      "source": "sf-building-permits"
    },
    {
      "number": "200212173653",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-12-17",
      "status_date": "2003-11-20",
      "estimated_cost": 8000,
      "revised_cost": 8000,
      "description": "remove old foundation & replace with engineered foundation",
      "source": "sf-building-permits"
    },
    {
      "number": "200209065832",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2002-09-06",
      "status_date": "2003-11-20",
      "estimated_cost": 95000,
      "revised_cost": 195000,
      "description": "vertical addition raising building, rconstruct roof, remodel work for interior,. addt'l sq. footage",
      "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=4142",
      "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=2750021&$order=closed_roll_year%20DESC&$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=2750&lot=021",
      "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=2750021",
      "retrieved": "2026-07-28"
    }
  ]
}