{
  "address": "3939 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/3939/",
  "apn": "3605072",
  "block": "3605",
  "lot": "072",
  "eas_baseid": "362143",
  "coordinates": {
    "lat": 37.75779,
    "lng": -122.428931
  },
  "parcel": {
    "year_built": 1959,
    "units": 10,
    "stories": 2,
    "rooms": 32,
    "bathrooms": 10,
    "lot_area_sqft": 5697,
    "building_area_sqft": 7072,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 5 to 14 Units",
    "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 3939 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1545311,
    "assessed_improvement_value": 965818,
    "last_sale_date": "1991-01-23"
  },
  "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": "1959",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201710161294",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2017-10-16",
      "status_date": "2017-10-16",
      "estimated_cost": 3500,
      "revised_cost": 3500,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "201409237121",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-09-23",
      "status_date": "2016-03-05",
      "estimated_cost": 60000,
      "revised_cost": 60000,
      "description": "mandatory soft story upgrade as per sf building code, ch 34b: 2012 iebc appendix a-4",
      "source": "sf-building-permits"
    },
    {
      "number": "M132724",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2008-08-28",
      "status_date": "2008-08-28",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "200412302368",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2004-12-30",
      "status_date": "2005-03-29",
      "estimated_cost": 700,
      "revised_cost": 700,
      "description": "install 4' tall steel fence on roof, to prevent people from accessing roof",
      "source": "sf-building-permits"
    },
    {
      "number": "9516995",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1995-10-11",
      "status_date": "1997-05-27",
      "estimated_cost": 7800,
      "description": "replace drywall at main garage-wall and ceiling and painting",
      "source": "sf-building-permits"
    },
    {
      "number": "9105868",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1991-04-09",
      "status_date": "1992-02-19",
      "estimated_cost": 7500,
      "description": "termite work",
      "source": "sf-building-permits"
    },
    {
      "number": "9101403",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1991-01-29",
      "status_date": "1991-05-17",
      "estimated_cost": 35046,
      "description": "pest damage repair as per attached report",
      "source": "sf-building-permits"
    },
    {
      "number": "8311722",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1983-11-16",
      "status_date": "1986-03-04",
      "estimated_cost": 1680,
      "description": "to bring building code",
      "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=3939",
      "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=3605072&$order=closed_roll_year%20DESC&$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=3605&lot=072",
      "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=3605072",
      "retrieved": "2026-07-28"
    }
  ]
}