{
  "address": "4160 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/4160/",
  "apn": "3602055",
  "block": "3602",
  "lot": "055",
  "eas_baseid": "361880",
  "coordinates": {
    "lat": 37.757935,
    "lng": -122.433929
  },
  "parcel": {
    "year_built": 1904,
    "units": 3,
    "stories": 2,
    "rooms": 11,
    "bathrooms": 3,
    "bedrooms": 5,
    "lot_area_sqft": 2060,
    "building_area_sqft": 2156,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 4 units or less",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "4162 4160-20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1215745,
    "assessed_improvement_value": 481748,
    "last_sale_date": "2022-05-20"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "Historic Survey Result",
    "yearbuilt": "1904",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202512081188",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2025-12-08",
      "status_date": "2025-12-08",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "underground water main for fire sprinkler system. ref pa #2024-1119-5280 & 2022-0720-8951",
      "source": "sf-building-permits"
    },
    {
      "number": "202411195280",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2024-11-19",
      "status_date": "2024-12-03",
      "estimated_cost": 8000,
      "revised_cost": 7453,
      "description": "new fire sprinkler system in basement for new adu partial. undergroup under separate permit. ref pa# 202207208951(s)",
      "source": "sf-building-permits"
    },
    {
      "number": "202309267443",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-09-26",
      "status_date": "2024-03-13",
      "estimated_cost": 10000,
      "revised_cost": 40000,
      "description": "kitchen -2 circuits. 1 bath, 1 outlet, repaint bath kitchen, chnage flooring. no exterior work.",
      "source": "sf-building-permits"
    },
    {
      "number": "202207208951",
      "type": "additions alterations or repairs",
      "status": "issued",
      "filed": "2022-07-20",
      "status_date": "2023-06-08",
      "estimated_cost": 150000,
      "revised_cost": 150000,
      "description": "to comply with nov# 202293305. partial conversion of existing basement level into 530 sf adu unit.",
      "source": "sf-building-permits"
    },
    {
      "number": "202206015372",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2022-06-01",
      "status_date": "2022-06-01",
      "estimated_cost": 15000,
      "revised_cost": 52000,
      "description": "two kitchen and two bath remodel. all non structrual.",
      "source": "sf-building-permits"
    },
    {
      "number": "202206015373",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2022-06-01",
      "status_date": "2022-06-01",
      "estimated_cost": 1200,
      "revised_cost": 1200,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200502155506",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2005-02-15",
      "status_date": "2005-02-16",
      "estimated_cost": 6000,
      "revised_cost": 6000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200203050617",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2002-03-05",
      "status_date": "2002-05-14",
      "estimated_cost": 3000,
      "revised_cost": 3000,
      "description": "to comply with housing inspetion division notices of violation issued on 2/02/2002/app 200224747",
      "source": "sf-building-permits"
    },
    {
      "number": "8313023",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1983-12-22",
      "status_date": "1984-02-06",
      "estimated_cost": 1692,
      "description": "repair dry rot.",
      "source": "sf-building-permits"
    },
    {
      "number": "8310311",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1983-10-13",
      "status_date": "1984-01-27",
      "estimated_cost": 4023,
      "source": "sf-building-permits"
    },
    {
      "number": "8201010",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1982-02-10",
      "status_date": "1983-03-04",
      "estimated_cost": 100,
      "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=4160",
      "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=3602055&$order=closed_roll_year%20DESC&$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=3602&lot=055",
      "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=3602055",
      "retrieved": "2026-07-28"
    }
  ]
}