{
  "address": "4441–4443 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/4441/",
  "apn": "2750037",
  "block": "2750",
  "lot": "037",
  "eas_baseid": "345477",
  "coordinates": {
    "lat": 37.757286,
    "lng": -122.437704
  },
  "address_range": "4441–4443",
  "street_numbers_on_parcel": [
    "4441",
    "4443"
  ],
  "parcel": {
    "year_built": 1906,
    "units": 2,
    "stories": 2,
    "rooms": 9,
    "bathrooms": 2,
    "lot_area_sqft": 2435,
    "building_area_sqft": 2600,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "4443 4441 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 562990,
    "assessed_improvement_value": 375317,
    "last_sale_date": "1988-08-05"
  },
  "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": "1906",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201604275828",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-04-27",
      "status_date": "2016-10-13",
      "estimated_cost": 1620,
      "revised_cost": 1620,
      "description": "kitchen range fan vent system. run liner only thru brick chimney. 6\" diameter ul listed material",
      "source": "sf-building-permits"
    },
    {
      "number": "200704199170",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2007-04-19",
      "status_date": "2007-12-07",
      "estimated_cost": 35000,
      "revised_cost": 35000,
      "description": "replace/rmodel kitchen, replace existing rear door, replace existing bath window.",
      "source": "sf-building-permits"
    },
    {
      "number": "200501213757",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2005-01-21",
      "status_date": "2005-01-27",
      "estimated_cost": 750,
      "revised_cost": 750,
      "description": "replacing an area 8 by 10 approximately 21-8' painted redwood planks only the planks will be replace",
      "source": "sf-building-permits"
    },
    {
      "number": "9612348",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1996-07-10",
      "status_date": "2006-09-20",
      "estimated_cost": 10350,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9604632",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1996-03-20",
      "status_date": "1996-04-16",
      "estimated_cost": 1000,
      "description": "repair dryrot damage",
      "source": "sf-building-permits"
    },
    {
      "number": "9520881",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1995-12-12",
      "status_date": "1996-01-03",
      "estimated_cost": 5750,
      "description": "repair dry rot at base of rear wall - report #4291a",
      "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=4441",
      "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=2750037&$order=closed_roll_year%20DESC&$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=037",
      "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=2750037",
      "retrieved": "2026-07-28"
    }
  ]
}