{
  "address": "4448–4450 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/4448/",
  "apn": "2698021",
  "block": "2698",
  "lot": "021",
  "eas_baseid": "344508",
  "coordinates": {
    "lat": 37.75774,
    "lng": -122.437837
  },
  "address_range": "4448–4450",
  "street_numbers_on_parcel": [
    "4448",
    "4450"
  ],
  "parcel": {
    "year_built": 1904,
    "units": 4,
    "stories": 2,
    "rooms": 15,
    "bathrooms": 3,
    "lot_area_sqft": 2748,
    "building_area_sqft": 3750,
    "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": "4450 4448 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 41324,
    "assessed_improvement_value": 62584,
    "assessed_fixtures_value": 246
  },
  "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": "1904",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201401166472",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2014-01-16",
      "status_date": "2014-01-16",
      "estimated_cost": 1350,
      "revised_cost": 1350,
      "description": "replace garage door in existing openning.",
      "source": "sf-building-permits"
    },
    {
      "number": "201107119863",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-07-11",
      "status_date": "2011-07-20",
      "estimated_cost": 18000,
      "revised_cost": 18000,
      "description": "remove old roof, install 30 lbs and 40 year shingle class a, install 04 roofing vent. install 1/2 cdx plywood over skip sheathing.",
      "source": "sf-building-permits"
    },
    {
      "number": "201008027909",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-08-02",
      "status_date": "2010-09-03",
      "estimated_cost": 4200,
      "revised_cost": 4200,
      "description": "repairs to pantry area next to kitchen, remove & repl deteriorated cabinets, install new countertop sink & faucet, no structural changes no new lighting",
      "source": "sf-building-permits"
    },
    {
      "number": "200402277310",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2004-02-27",
      "status_date": "2004-08-11",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "replace back stairs in kind -to comply nov 200230776 dated 8/15/02 item #2.",
      "source": "sf-building-permits"
    },
    {
      "number": "200306258014",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2003-06-25",
      "status_date": "2003-06-25",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew appl#9825371 & 9909812 for final inspection",
      "source": "sf-building-permits"
    },
    {
      "number": "200306258015",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2003-06-25",
      "status_date": "2003-06-25",
      "estimated_cost": 15000,
      "revised_cost": 15000,
      "description": "repair/replace in kind components of rear stairs & roof deck over garage to comply w/ nov 200230776",
      "source": "sf-building-permits"
    },
    {
      "number": "9909812",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1999-05-18",
      "status_date": "1999-09-18",
      "estimated_cost": 2500,
      "description": "work per correction notice 9825371 3/4/99 replace lower lndg",
      "source": "sf-building-permits"
    },
    {
      "number": "9825371",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1998-12-11",
      "status_date": "1999-04-11",
      "estimated_cost": 500,
      "description": "repair roof gutters, rear stairs and one post and siding",
      "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=4448",
      "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=2698021&$order=closed_roll_year%20DESC&$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=2698&lot=021",
      "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=2698021",
      "retrieved": "2026-07-28"
    }
  ]
}