{
  "address": "3978–3980 18th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/18th-street/3978/",
  "apn": "3581028",
  "block": "3581",
  "lot": "028",
  "eas_baseid": "360614",
  "coordinates": {
    "lat": 37.761279,
    "lng": -122.432325
  },
  "address_range": "3978–3980",
  "street_numbers_on_parcel": [
    "3978",
    "3980"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 2,
    "stories": 2,
    "rooms": 9,
    "bathrooms": 2,
    "lot_area_sqft": 3310,
    "building_area_sqft": 2020,
    "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": "3980 3978 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1222794,
    "assessed_improvement_value": 595246,
    "last_sale_date": "2013-11-05"
  },
  "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": "201406168422",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2014-06-16",
      "status_date": "2016-01-29",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "removed and replaced existing rear deck and existing stairs.",
      "source": "sf-building-permits"
    },
    {
      "number": "201403181034",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-03-18",
      "status_date": "2014-08-18",
      "estimated_cost": 18500,
      "revised_cost": 35000,
      "description": "remodel kitchen and bath, add 1/2 bath with new window opening, replace windows, move deck door at enclosed porch",
      "source": "sf-building-permits"
    },
    {
      "number": "201312184477",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-12-18",
      "status_date": "2013-12-18",
      "estimated_cost": 2500,
      "revised_cost": 2500,
      "description": "repair siding (150 sq ft) in rear",
      "source": "sf-building-permits"
    },
    {
      "number": "200609011342",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2006-09-01",
      "status_date": "2006-09-21",
      "estimated_cost": 500,
      "revised_cost": 500,
      "description": "removal of detached structure 10 ft x 20 ft 8 ft tall to comply with nov 200670120 shed has already been demolished",
      "source": "sf-building-permits"
    },
    {
      "number": "M24100",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2003-06-25",
      "status_date": "2003-06-25",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "9920945",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1999-10-04",
      "status_date": "2000-04-04",
      "estimated_cost": 7600,
      "description": "one-stop re roofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9906915",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1999-04-12",
      "status_date": "1999-10-12",
      "estimated_cost": 8049,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9503329",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1995-03-08",
      "status_date": "1995-08-22",
      "estimated_cost": 500,
      "description": "replace existing floor w/1-1/8 plywood/repair",
      "source": "sf-building-permits"
    },
    {
      "number": "9502644",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1995-02-23",
      "status_date": "1995-08-23",
      "estimated_cost": 12000,
      "description": "revision to 9500618, changes for a new bathrm & kitchen",
      "source": "sf-building-permits"
    },
    {
      "number": "9500618",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1995-01-17",
      "status_date": "1995-07-17",
      "estimated_cost": 18892,
      "description": "take all (e)lathe & plaster ofp & repl w/sheetrock to code",
      "source": "sf-building-permits"
    },
    {
      "number": "9500421",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1995-01-11",
      "status_date": "1995-08-22",
      "estimated_cost": 3000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9015172",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1990-08-01",
      "status_date": "1990-08-24",
      "estimated_cost": 75,
      "description": "remove toilet and 2 sinks to return to attic space",
      "source": "sf-building-permits"
    },
    {
      "number": "8206401",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1982-08-05",
      "status_date": "1983-03-04",
      "estimated_cost": 1500,
      "description": "bldg use: dwg",
      "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=3978",
      "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=3581028&$order=closed_roll_year%20DESC&$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=3581&lot=028",
      "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=3581028",
      "retrieved": "2026-07-28"
    }
  ]
}