{
  "address": "3520 18th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/18th-street/3520/",
  "apn": "3577011",
  "block": "3577",
  "lot": "011",
  "eas_baseid": "360378",
  "coordinates": {
    "lat": 37.761902,
    "lng": -122.422149
  },
  "parcel": {
    "year_built": 1923,
    "units": 4,
    "stories": 2,
    "rooms": 12,
    "bathrooms": 4,
    "lot_area_sqft": 3727.5,
    "building_area_sqft": 3634,
    "lot_depth_ft": 5,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 4 units or less",
    "construction_type_code": "D",
    "zoning": "VALEN",
    "supervisor_district": 9,
    "assessor_neighborhood": "Mission Dolores",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "0000 3520 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 565212,
    "assessed_improvement_value": 565212,
    "last_sale_date": "2012-05-18"
  },
  "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": "1923",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202001222491",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2020-01-22",
      "status_date": "2020-01-22",
      "estimated_cost": 20665,
      "revised_cost": 20665,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "201310088777",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-10-08",
      "status_date": "2013-10-23",
      "estimated_cost": 4600,
      "revised_cost": 4600,
      "description": "repair/replace water damaged wood deck & stairs less than 50%. replace stringer for the stair from 1st floor to 2nd floor.",
      "source": "sf-building-permits"
    },
    {
      "number": "M367548",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-01-22",
      "status_date": "2013-01-22",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "200111062577",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2001-11-06",
      "status_date": "2002-04-04",
      "estimated_cost": 700,
      "revised_cost": 700,
      "description": "repair deck joists,floor boards,lowest stringer,replace materials as necessary per n.o.v.200120394.",
      "source": "sf-building-permits"
    },
    {
      "number": "9009327",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1990-05-15",
      "status_date": "1990-07-26",
      "estimated_cost": 30000,
      "description": "repair damaged frame and stucco front replace brick & stucco",
      "source": "sf-building-permits"
    },
    {
      "number": "8925310",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1989-12-26",
      "status_date": "1990-03-26",
      "estimated_cost": 10850,
      "description": "re - roofing",
      "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=3520",
      "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=3577011&$order=closed_roll_year%20DESC&$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=3577&lot=011",
      "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=3577011",
      "retrieved": "2026-07-31"
    }
  ]
}