{
  "address": "3524–3526 18th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/18th-street/3524/",
  "apn": "3577005A",
  "block": "3577",
  "lot": "005A",
  "eas_baseid": "360375",
  "coordinates": {
    "lat": 37.761895,
    "lng": -122.422254
  },
  "address_range": "3524–3526",
  "street_numbers_on_parcel": [
    "3524",
    "3526"
  ],
  "parcel": {
    "year_built": 1924,
    "units": 2,
    "stories": 3,
    "rooms": 13,
    "bathrooms": 2,
    "lot_area_sqft": 2622,
    "building_area_sqft": 3688,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "VALEN",
    "supervisor_district": 9,
    "assessor_neighborhood": "Mission Dolores",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "3526 3524 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2576183,
    "assessed_improvement_value": 1104076,
    "last_sale_date": "2020-12-14"
  },
  "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": "1924",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201502128230",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-02-12",
      "status_date": "2015-10-22",
      "estimated_cost": 3000,
      "revised_cost": 6000,
      "description": "revision to permit 201405095407; install a new 2\" dedicated fire service; maher n/a",
      "source": "sf-building-permits"
    },
    {
      "number": "201405095407",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-05-09",
      "status_date": "2015-11-20",
      "estimated_cost": 12000,
      "revised_cost": 12000,
      "description": "install a new voluntary residential fire sprinkler system per 2013 nfpa 13d, t.i. pa# 201301319223. n/a orindance #155-13 not required - underground by others separate permit.",
      "source": "sf-building-permits"
    },
    {
      "number": "201301319223",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2013-01-31",
      "status_date": "2015-11-19",
      "estimated_cost": 175000,
      "revised_cost": 410000,
      "description": "addition at l2 & l3 over (e) l1 (rear building), plus stairs. addition at l2 & l3 at side of building (in area of existing stairs). residential elevator. interior stairs connecting l1 & l2. interior remodel.",
      "source": "sf-building-permits"
    },
    {
      "number": "201212035277",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-12-03",
      "status_date": "2013-03-07",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "replace 10 windows, visable from street, no structural changes, max u factor 0.40. fiberglass frames.",
      "source": "sf-building-permits"
    },
    {
      "number": "M231966",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2010-12-07",
      "status_date": "2010-12-07",
      "revised_cost": 1,
      "description": "street space for scaffold",
      "source": "sf-building-permits"
    },
    {
      "number": "200710104980",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2007-10-10",
      "status_date": "2008-05-08",
      "estimated_cost": 41000,
      "revised_cost": 41000,
      "description": "to partition ground floor to provide new 1/2 bath, add play room, 1/2 bath, laundry and storage room",
      "source": "sf-building-permits"
    },
    {
      "number": "200403047716",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2004-03-04",
      "status_date": "2004-03-04",
      "estimated_cost": 4500,
      "revised_cost": 4500,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "8707039",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1987-05-26",
      "status_date": "1987-12-08",
      "estimated_cost": 10000,
      "description": "kitchen & bathroom remodeling",
      "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=3524",
      "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=3577005A&$order=closed_roll_year%20DESC&$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=005A",
      "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=3577005A",
      "retrieved": "2026-07-31"
    }
  ]
}