{
  "address": "4024–4026 18th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/18th-street/4024/",
  "apn": "3582020",
  "block": "3582",
  "lot": "020",
  "eas_baseid": "360697",
  "coordinates": {
    "lat": 37.761209,
    "lng": -122.433428
  },
  "address_range": "4024–4026",
  "street_numbers_on_parcel": [
    "4024",
    "4026"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 2,
    "stories": 4,
    "rooms": 13,
    "bathrooms": 5,
    "bedrooms": 6,
    "lot_area_sqft": 2500,
    "building_area_sqft": 3188,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "4026 4024 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 3296003,
    "assessed_improvement_value": 1412571,
    "last_sale_date": "2020-07-17"
  },
  "historic_status": {
    "ceqa_status_code": "B",
    "ceqa_status_code_article_10_11": "B",
    "ceqa_status_label": "Unevaluated",
    "reason": "Historic Survey Result and 45 years or older",
    "yearbuilt": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "M1207528",
      "type": "otc alterations permit",
      "status": "filed",
      "filed": "2020-05-29",
      "status_date": "2020-05-29",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201910073720",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-10-07",
      "status_date": "2020-07-30",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "ref pa # 2019-0927-2967: fire sprinklers as builts.",
      "source": "sf-building-permits"
    },
    {
      "number": "201909272967",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-09-27",
      "status_date": "2020-07-30",
      "estimated_cost": 25000,
      "revised_cost": 30444,
      "description": "installation of automatic fire sprinkler, for 2 unit building, with 2\" underground. fire alarm under sep permit. maher n/a.",
      "source": "sf-building-permits"
    },
    {
      "number": "M1065467",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-04-12",
      "status_date": "2019-04-12",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201810011871",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-10-01",
      "status_date": "2018-10-03",
      "estimated_cost": 50000,
      "revised_cost": 50000,
      "description": "foundation replacement of whole bldg. simple continuous shallow foundation.",
      "source": "sf-building-permits"
    },
    {
      "number": "M969687",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-08-23",
      "status_date": "2018-08-23",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201808157463",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-08-15",
      "status_date": "2019-07-29",
      "estimated_cost": 900,
      "revised_cost": 1000,
      "description": "exploratory demolition as noted on plans. replace back in-kind, maintain 1//f fire rated walls at property line.",
      "source": "sf-building-permits"
    },
    {
      "number": "201711204430",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2017-11-20",
      "status_date": "2020-07-10",
      "estimated_cost": 450000,
      "revised_cost": 670000,
      "description": "vertical addition & remodel of 2-family dwelling including full interior remodel. create a 4-story structure with 2-dwelling units.",
      "source": "sf-building-permits"
    },
    {
      "number": "201301027072",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-01-02",
      "status_date": "2013-04-18",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection approved under pa# 200610276273, all work is complete.",
      "source": "sf-building-permits"
    },
    {
      "number": "200610276273",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2006-10-27",
      "status_date": "2008-07-18",
      "estimated_cost": 25000,
      "revised_cost": 25000,
      "description": "replace (e) deck & stairs @ rear w/deck & stairs in smaller configuration.",
      "source": "sf-building-permits"
    },
    {
      "number": "9707123",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1997-04-21",
      "status_date": "1997-06-05",
      "estimated_cost": 2500,
      "description": "cap exist brack foundation/install new pressure treated muds",
      "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=4024",
      "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=3582020&$order=closed_roll_year%20DESC&$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=020",
      "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=3582020",
      "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",
    "year_built_as_surveyed": "1901",
    "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, now two units."
  },
  "building": {
    "builder": "Fernando Nelson"
  }
}