{
  "address": "4122–4124 18th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/18th-street/4122/",
  "apn": "2647014",
  "block": "2647",
  "lot": "014",
  "eas_baseid": "343201",
  "coordinates": {
    "lat": 37.761044,
    "lng": -122.435645
  },
  "address_range": "4122–4124",
  "street_numbers_on_parcel": [
    "4122",
    "4124"
  ],
  "parcel": {
    "year_built": 1910,
    "units": 2,
    "stories": 1,
    "rooms": 8,
    "bathrooms": 2,
    "lot_area_sqft": 1873,
    "building_area_sqft": 3064,
    "use": "Multi-Family Residential",
    "property_class": "Flat & Store 4 units or less",
    "construction_type_code": "D",
    "zoning": "CASTRO",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "4124 4122 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 353664,
    "assessed_improvement_value": 442078
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District, Historic Survey Result",
    "yearbuilt": "1910",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Eureka Valley Commercial & Castro Village LGBTQ+ Historic District",
    "california_register_status": "Eligible (not listed)",
    "national_register_status": "Not listed",
    "article_10_11_status": "No local landmark protection",
    "local_landmark_protection": false,
    "period_of_significance": "1879–1932; 1963–1980",
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "201905019477",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-05-01",
      "status_date": "2019-05-01",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "reroofing.",
      "source": "sf-building-permits"
    },
    {
      "number": "201607192732",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-07-19",
      "status_date": "2016-08-31",
      "estimated_cost": 40000,
      "revised_cost": 40000,
      "description": "install bathroom, install electrical, ti of space. paint new wood floors. no change of use from hiv resources center to fitness studio. no exterior work.",
      "source": "sf-building-permits"
    },
    {
      "number": "201606099572",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-06-09",
      "status_date": "2016-08-31",
      "estimated_cost": 1000,
      "revised_cost": 8000,
      "description": "soft demolition of finishes & non-structural partitions to prepare site for pending (ab-017)tenant improvement work, which will be performed under separate permit.",
      "source": "sf-building-permits"
    },
    {
      "number": "201508174499",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-08-17",
      "status_date": "2015-08-18",
      "estimated_cost": 16867,
      "revised_cost": 16867,
      "description": "ac unit replacement on roof. not visable from street",
      "source": "sf-building-permits"
    },
    {
      "number": "M198507",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2010-04-21",
      "status_date": "2010-04-21",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "200306106742",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "2003-06-10",
      "status_date": "2005-02-23",
      "estimated_cost": 25000,
      "description": "tenant improvement in ground floor commerticial space (e). (n) tenant will be community outreach and",
      "source": "sf-building-permits"
    },
    {
      "number": "200210229563",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2002-10-22",
      "status_date": "2002-10-22",
      "estimated_cost": 3000,
      "revised_cost": 3000,
      "description": "repl 9 windows in kind on front back & side of bldg (rev. 200207292549)",
      "source": "sf-building-permits"
    },
    {
      "number": "200207292549",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2002-07-29",
      "status_date": "2002-07-29",
      "estimated_cost": 49440,
      "revised_cost": 49440,
      "description": "renew pa #9907379",
      "source": "sf-building-permits"
    },
    {
      "number": "9907379",
      "type": "additions alterations or repairs",
      "status": "issued",
      "filed": "1999-04-16",
      "status_date": "2000-05-04",
      "estimated_cost": 25000,
      "revised_cost": 49440,
      "description": "renew permit appl-8711044. complete the work required",
      "source": "sf-building-permits"
    },
    {
      "number": "9222301",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1992-12-30",
      "status_date": "1993-06-30",
      "estimated_cost": 5985,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9213391",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1992-08-07",
      "status_date": "1993-02-19",
      "estimated_cost": 20000,
      "description": "t/i demo nlb constr, new partitions, dac door, etc - express",
      "source": "sf-building-permits"
    },
    {
      "number": "8711044",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "1987-08-04",
      "status_date": "1987-12-11",
      "estimated_cost": 1,
      "description": "no work performed, clean up, painting & carpeting",
      "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=4122",
      "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=2647014&$order=closed_roll_year%20DESC&$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=2647&lot=014",
      "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=2647014",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-historic-districts",
      "name": "SF Planning Department — Historic Districts via DataSF",
      "query": "https://data.sfgov.org/resource/63x5-g3m4.json?$where=intersects(the_geom,%20%27POINT(-122.43564486665295%2037.76104378356325)%27)",
      "retrieved": "2026-07-28"
    }
  ]
}