{
  "address": "4016 18th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/18th-street/4016/",
  "apn": "3582018",
  "block": "3582",
  "lot": "018",
  "eas_baseid": "360695",
  "coordinates": {
    "lat": 37.761219,
    "lng": -122.433256
  },
  "parcel": {
    "year_built": 1900,
    "units": 1,
    "stories": 2,
    "rooms": 7,
    "bathrooms": 2,
    "bedrooms": 3,
    "lot_area_sqft": 2500,
    "building_area_sqft": 2184,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 4016 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1283074,
    "assessed_improvement_value": 549885,
    "last_sale_date": "2009-09-30"
  },
  "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": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201211264836",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-11-26",
      "status_date": "2013-02-06",
      "estimated_cost": 6000,
      "revised_cost": 6000,
      "description": "retrofit one window replacement at back of house. max u factor= 0.40.duct work (fan on mech plmg)replace furnace in same location",
      "source": "sf-building-permits"
    },
    {
      "number": "201210051459",
      "type": "otc alterations permit",
      "status": "cancelled",
      "filed": "2012-10-05",
      "status_date": "2012-12-21",
      "estimated_cost": 4000,
      "revised_cost": 6000,
      "description": "duct replacement, attic insulation (r-38), wal insulation. (r-13). heating duct. blown in. 1015 sq ft insulation. blown in.",
      "source": "sf-building-permits"
    },
    {
      "number": "M351870",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-10-05",
      "status_date": "2012-10-05",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "200904095927",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2009-04-09",
      "status_date": "2009-05-15",
      "estimated_cost": 6500,
      "revised_cost": 6500,
      "description": "in kind replacement of extg concrete and terrazzo steps at entry. concrete block wall support understeps.",
      "source": "sf-building-permits"
    },
    {
      "number": "200309023548",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2003-09-02",
      "status_date": "2003-09-02",
      "estimated_cost": 3000,
      "revised_cost": 3000,
      "description": "less than 50% repair of deck extng.replace rotting rim joist. replace undersized joists(2).replace",
      "source": "sf-building-permits"
    },
    {
      "number": "200206249737",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2002-06-24",
      "status_date": "2002-06-24",
      "estimated_cost": 9000,
      "revised_cost": 9000,
      "description": "reroofing",
      "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=4016",
      "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=3582018&$order=closed_roll_year%20DESC&$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=3582&lot=018",
      "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=3582018",
      "retrieved": "2026-07-28"
    },
    {
      "id": "eureka-valley-context-statement",
      "name": "Elaine B. Stiles, Eureka Valley Historic Context Statement, prepared for the Eureka Valley Neighborhood Association, adopted by the Historic Preservation Commission December 20, 2017",
      "query": "http://default.sfplanning.org/Preservation/EurekaValleyHCS/hp_eureka_valley_hcs_HCS_FINAL-122017.pdf",
      "listing": "https://sfplanning.org/project/sf-histories-historic-context-statements#completed",
      "label": "Eureka Valley Historic Context Statement, adopted 2017",
      "retrieved": "2026-08-14"
    }
  ],
  "historic_survey": {
    "survey": "Eureka Valley Historic Context Statement (2017)",
    "source": "eureka-valley-context-statement",
    "style": "Queen Anne, altered / Queen Anne",
    "year_built_as_surveyed": "1901",
    "address_as_surveyed": "4016-4028 18th Street",
    "note": "Listed among the houses Fernando Nelson built in Eureka Valley. The statement is reconnaissance-level and says inclusion in it is not a judgement on a building's worthiness for preservation. It records it as a single-storey end-gable dwelling with entry porch and bay window. Illustrated in the statement's survey of Eureka Valley property types and architectural styles. The statement is reconnaissance-level and says inclusion in it is not a judgement on a building's worthiness for preservation. It records it as single-family dwellings."
  },
  "building": {
    "builder": "Fernando Nelson"
  }
}