{
  "address": "4016 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/4016/",
  "apn": "3601014",
  "block": "3601",
  "lot": "014",
  "eas_baseid": "361761",
  "coordinates": {
    "lat": 37.75817,
    "lng": -122.430753
  },
  "parcel": {
    "year_built": 1996,
    "units": 1,
    "stories": 3,
    "rooms": 9,
    "bathrooms": 3,
    "bedrooms": 2,
    "lot_area_sqft": 2850,
    "building_area_sqft": 2986,
    "lot_depth_ft": 14,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-1",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 4016 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 454213,
    "assessed_improvement_value": 729486,
    "last_sale_date": "1993-03-17"
  },
  "historic_status": {
    "ceqa_status_code": "C",
    "ceqa_status_code_article_10_11": "C",
    "ceqa_status_label": "Not a historical resource",
    "reason": "Not 45 years or older",
    "yearbuilt": "1996",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201304235302",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-04-23",
      "status_date": "2013-04-23",
      "estimated_cost": 7100,
      "revised_cost": 7100,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200107103342",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2001-07-10",
      "status_date": "2002-02-04",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to renew permit#2000/10/24/3876 for final inspection.",
      "source": "sf-building-permits"
    },
    {
      "number": "200010243876",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2000-10-24",
      "status_date": "2001-08-13",
      "estimated_cost": 7000,
      "revised_cost": 7000,
      "description": "replace retaining wall retained height remain the same.",
      "source": "sf-building-permits"
    },
    {
      "number": "9617263",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1996-08-12",
      "status_date": "1996-12-16",
      "estimated_cost": 1,
      "description": "renew expired permit appn.9415294,9415295,9415296,9508784",
      "source": "sf-building-permits"
    },
    {
      "number": "9606055",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1996-04-09",
      "status_date": "1996-12-16",
      "estimated_cost": 1,
      "description": "revision to 9415294",
      "source": "sf-building-permits"
    },
    {
      "number": "9508784",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1995-06-09",
      "status_date": "1996-12-16",
      "estimated_cost": 3000,
      "description": "structural rev pa #9415294-2nd/3rd flrs to support conc topp",
      "source": "sf-building-permits"
    },
    {
      "number": "9415294S",
      "type": "new construction wood frame",
      "status": "complete",
      "filed": "1994-09-21",
      "status_date": "1996-12-16",
      "estimated_cost": 265000,
      "description": "erect a three story single family dwelling",
      "source": "sf-building-permits"
    },
    {
      "number": "9415295S",
      "type": "new construction wood frame",
      "status": "complete",
      "filed": "1994-09-21",
      "status_date": "1996-12-16",
      "estimated_cost": 15000,
      "description": "erect a one story private parking garage",
      "source": "sf-building-permits"
    },
    {
      "number": "9415296",
      "type": "demolitions",
      "status": "complete",
      "filed": "1994-09-21",
      "status_date": "1996-05-17",
      "description": "demolish single family dwelling",
      "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=4016",
      "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=3601014&$order=closed_roll_year%20DESC&$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=3601&lot=014",
      "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=3601014",
      "retrieved": "2026-07-28"
    }
  ]
}