{
  "address": "4035 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/4035/",
  "apn": "3604085",
  "block": "3604",
  "lot": "085",
  "eas_baseid": "362062",
  "coordinates": {
    "lat": 37.757658,
    "lng": -122.431109
  },
  "parcel": {
    "year_built": 1986,
    "units": 1,
    "stories": 2,
    "rooms": 6,
    "bathrooms": 2,
    "bedrooms": 3,
    "lot_area_sqft": 3140,
    "building_area_sqft": 2440,
    "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 4035 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 551930,
    "assessed_improvement_value": 1107545,
    "last_sale_date": "2025-01-03"
  },
  "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": "1986",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202506058072",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-06-05",
      "status_date": "2025-12-09",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "revision to 202505015600: replace waterproofing and plaster in kind on 250 sf of north and east facade.",
      "source": "sf-building-permits"
    },
    {
      "number": "202505015600",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-05-01",
      "status_date": "2025-12-09",
      "estimated_cost": 10000,
      "revised_cost": 11366,
      "description": "replace 11 windows & 1 french door w/ new aluminum clad wood windows & doors",
      "source": "sf-building-permits"
    },
    {
      "number": "202504305505",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-04-30",
      "status_date": "2025-11-26",
      "estimated_cost": 75000,
      "revised_cost": 100000,
      "description": "level 2: kitchen and bathroom remodel. replace flooring throughout. replace tile at patio. level 3: primary bathroom remodel. replace flooring throughout",
      "source": "sf-building-permits"
    },
    {
      "number": "201806071231",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-06-07",
      "status_date": "2018-11-15",
      "estimated_cost": 42000,
      "revised_cost": 42000,
      "description": "install elevator in existing shaft in private residence per ansi/asme 17.1-2013. ref # 8911598. install per manufacturer's installation instructions",
      "source": "sf-building-permits"
    },
    {
      "number": "200311049332",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2003-11-04",
      "status_date": "2003-11-04",
      "estimated_cost": 2000,
      "revised_cost": 2000,
      "description": "new tile on 1 bathroom,10 sq.ft. of stucco repair",
      "source": "sf-building-permits"
    },
    {
      "number": "8911598",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1989-06-30",
      "status_date": "1989-08-04",
      "estimated_cost": 1,
      "description": "renew expired permit application number 8405463",
      "source": "sf-building-permits"
    },
    {
      "number": "8711771",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1987-08-18",
      "status_date": "1988-02-08",
      "estimated_cost": 2000,
      "description": "extend #8609411 & 8405463",
      "source": "sf-building-permits"
    },
    {
      "number": "8609411",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1986-08-05",
      "status_date": "1987-12-08",
      "estimated_cost": 1000,
      "description": "construct rear patio",
      "source": "sf-building-permits"
    },
    {
      "number": "8405463",
      "type": "new construction wood frame",
      "status": "expired",
      "filed": "1984-05-22",
      "status_date": "1986-07-28",
      "estimated_cost": 160000,
      "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=4035",
      "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=3604085&$order=closed_roll_year%20DESC&$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=3604&lot=085",
      "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=3604085",
      "retrieved": "2026-07-28"
    }
  ]
}