{
  "address": "3478 18th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/18th-street/3478/",
  "apn": "3576053",
  "block": "3576",
  "lot": "053",
  "eas_baseid": "360337",
  "coordinates": {
    "lat": 37.761938,
    "lng": -122.421085
  },
  "parcel": {
    "year_built": 1915,
    "units": 6,
    "stories": 3,
    "rooms": 17,
    "bathrooms": 6,
    "lot_area_sqft": 2121,
    "building_area_sqft": 4245,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 5 to 14 Units",
    "construction_type_code": "D",
    "zoning": "RM-1",
    "supervisor_district": 9,
    "assessor_neighborhood": "Inner Mission",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "0000 3478 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 375219,
    "assessed_improvement_value": 422145,
    "last_sale_date": "2025-03-04"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "Historic Survey Result",
    "yearbuilt": "1915",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202309287662",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-09-28",
      "status_date": "2024-04-30",
      "estimated_cost": 21000,
      "revised_cost": 21000,
      "description": "upgrade existing fire alarm system to comply with sffc section 1103.7.6.1",
      "source": "sf-building-permits"
    },
    {
      "number": "202205114044",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-05-11",
      "status_date": "2023-05-30",
      "estimated_cost": 55000,
      "revised_cost": 55000,
      "description": "to comply with nov# 202286530. replaced in kind windows. replace in kind backstairs. replaced exterior siding. add partition wall. add wall covering. add half bath at ground floor.",
      "source": "sf-building-permits"
    },
    {
      "number": "201809190802",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-09-19",
      "status_date": "2019-06-19",
      "estimated_cost": 40000,
      "revised_cost": 40000,
      "description": "compliance with mandatory soft story retrofit program sfebc 2016 ch 40 and cebc 2016 app a9",
      "source": "sf-building-permits"
    },
    {
      "number": "200712100061",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2007-12-10",
      "status_date": "2007-12-17",
      "estimated_cost": 3600,
      "revised_cost": 3600,
      "description": "reroofing.",
      "source": "sf-building-permits"
    },
    {
      "number": "M65234",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2007-04-23",
      "status_date": "2007-04-23",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "8700948",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1987-01-23",
      "status_date": "1987-12-11",
      "estimated_cost": 3500,
      "description": "to bring into 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=18TH&street_type=ST&address_number=3478",
      "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=3576053&$order=closed_roll_year%20DESC&$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=3576&lot=053",
      "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=3576053",
      "retrieved": "2026-07-31"
    }
  ]
}