{
  "address": "3257 20th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/20th-street/3257/",
  "apn": "3612047",
  "block": "3612",
  "lot": "047",
  "eas_baseid": "362607",
  "coordinates": {
    "lat": 37.758709,
    "lng": -122.41381
  },
  "parcel": {
    "year_built": 1900,
    "units": 1,
    "stories": 1,
    "rooms": 5,
    "bathrooms": 1,
    "lot_area_sqft": 2748,
    "building_area_sqft": 1395,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 9,
    "assessor_neighborhood": "Inner Mission",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "0000 3257 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 169955,
    "assessed_improvement_value": 385722,
    "last_sale_date": "1996-12-05"
  },
  "historic_status": {
    "ceqa_status_code": "C",
    "ceqa_status_code_article_10_11": "C",
    "ceqa_status_label": "Not a historical resource",
    "reason": "Historic Survey Result",
    "yearbuilt": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202510308560",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-10-30",
      "status_date": "2025-11-18",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under 201501155823. all work is complete",
      "source": "sf-building-permits"
    },
    {
      "number": "202509185577",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-09-18",
      "status_date": "2026-01-30",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "replace in-kind siding at the back of the building that is damaged from not painting it. 500 sq ft of new siding to be installed. like for like repair.",
      "source": "sf-building-permits"
    },
    {
      "number": "201501155823",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-01-15",
      "status_date": "2015-01-15",
      "estimated_cost": 1800,
      "revised_cost": 1800,
      "description": "repair dry rot in front stairs, less than 50% to be fixed, add hand rail (item #2), replace (e) security gate lock. to comply with his nov #201488871 dated 8/8/2014.",
      "source": "sf-building-permits"
    },
    {
      "number": "9914692",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1999-07-19",
      "status_date": "1999-11-19",
      "estimated_cost": 2000,
      "description": "install furnace, flue and ducts",
      "source": "sf-building-permits"
    },
    {
      "number": "9812286S",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1998-06-30",
      "status_date": "2000-02-09",
      "estimated_cost": 35000,
      "revised_cost": 63000,
      "description": "horizontal/vertical addition",
      "source": "sf-building-permits"
    },
    {
      "number": "9713402",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1997-07-18",
      "status_date": "1999-03-01",
      "estimated_cost": 250,
      "description": "repair interior plaster and lathe",
      "source": "sf-building-permits"
    },
    {
      "number": "9707997",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1997-05-02",
      "status_date": "1999-03-01",
      "estimated_cost": 1800,
      "description": "restore to original single family. remove sink, cabinets,etc",
      "source": "sf-building-permits"
    },
    {
      "number": "9419219",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1994-11-21",
      "status_date": "1995-02-16",
      "estimated_cost": 1600,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "8200599",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1982-01-27",
      "status_date": "1983-03-04",
      "estimated_cost": 1800,
      "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=3257",
      "retrieved": "2026-07-31"
    },
    {
      "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=3612047&$order=closed_roll_year%20DESC&$limit=1",
      "retrieved": "2026-07-31"
    },
    {
      "id": "sf-building-permits",
      "name": "SF Dept. of Building Inspection via DataSF",
      "query": "https://data.sfgov.org/resource/i98e-djp9.json?block=3612&lot=047",
      "retrieved": "2026-07-31"
    },
    {
      "id": "sf-planning",
      "name": "SF Planning Department — Historic Resource Status by Parcel via DataSF",
      "query": "https://data.sfgov.org/resource/3tsw-4idn.json?apn=3612047",
      "retrieved": "2026-07-31"
    }
  ]
}