{
  "address": "3975–3979 18th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/18th-street/3975/",
  "apn": "3584079",
  "block": "3584",
  "lot": "079",
  "eas_baseid": "360899",
  "coordinates": {
    "lat": 37.760812,
    "lng": -122.432219
  },
  "address_range": "3975–3979",
  "street_numbers_on_parcel": [
    "3975",
    "3977",
    "3979"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 3,
    "stories": 2,
    "rooms": 13,
    "bathrooms": 3,
    "lot_area_sqft": 2848,
    "building_area_sqft": 3566,
    "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": "3977 3975 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 80836,
    "assessed_improvement_value": 231010
  },
  "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": "202309257287",
      "type": "additions alterations or repairs",
      "status": "withdrawn",
      "filed": "2023-09-25",
      "status_date": "2023-12-04",
      "estimated_cost": 25000,
      "description": "front bldg - (n) additional dwelling unit on 3rd floor(one unit). ground floor improvements to be legalized. the 2nd unit proposed under separate pa# 2022-0317-0271.",
      "source": "sf-building-permits"
    },
    {
      "number": "202203170271",
      "type": "additions alterations or repairs",
      "status": "withdrawn",
      "filed": "2022-03-17",
      "status_date": "2023-12-04",
      "estimated_cost": 16250,
      "description": "reinstall kitchen at second unt #3977,that had been merged to the unit above #39.no structural work.",
      "source": "sf-building-permits"
    },
    {
      "number": "201406300042",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2014-06-30",
      "status_date": "2018-12-14",
      "estimated_cost": 400,
      "revised_cost": 400,
      "description": "front buildiing - garage floor repair - remove and re-construct 80 sq. ft. slab concret floor <<garage>> with 5 inch lthick with wire",
      "source": "sf-building-permits"
    },
    {
      "number": "M46143",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2006-10-24",
      "status_date": "2006-10-24",
      "revised_cost": 0,
      "description": "street space & sidewalk permit only.",
      "source": "sf-building-permits"
    },
    {
      "number": "200602275467",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2006-02-27",
      "status_date": "2009-06-16",
      "estimated_cost": 6000,
      "revised_cost": 6000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "M28411",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2004-07-21",
      "status_date": "2004-07-21",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "200407098469",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2004-07-09",
      "status_date": "2004-12-28",
      "estimated_cost": 10,
      "revised_cost": 10,
      "description": "revision to pa 200209126295-replace strong wall w/sheer wall at rear, lower grade beam, change at be",
      "source": "sf-building-permits"
    },
    {
      "number": "200406096027",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2004-06-09",
      "status_date": "2009-06-16",
      "estimated_cost": 25000,
      "revised_cost": 25000,
      "description": "to renew for full amount pa 200209126295",
      "source": "sf-building-permits"
    },
    {
      "number": "200405053105",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2004-05-05",
      "status_date": "2009-06-16",
      "estimated_cost": 2000,
      "revised_cost": 2000,
      "description": "revision to pa#200209126295. lower (e) 1st floor ceiling from 9'-6\" to 8'-5\". modification of",
      "source": "sf-building-permits"
    },
    {
      "number": "200209126295",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2002-09-12",
      "status_date": "2009-06-16",
      "estimated_cost": 25000,
      "revised_cost": 25000,
      "description": "legalize vertical addition approx 392 sq. ft",
      "source": "sf-building-permits"
    },
    {
      "number": "9623250",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1996-12-02",
      "status_date": "1997-06-19",
      "estimated_cost": 2000,
      "description": "merge 2 units into one owner occupied",
      "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=3975",
      "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=3584079&$order=closed_roll_year%20DESC&$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=3584&lot=079",
      "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=3584079",
      "retrieved": "2026-07-28"
    }
  ]
}