{
  "address": "4447–4455 18th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/18th-street/4447/",
  "apn": "2692037",
  "block": "2692",
  "lot": "037",
  "eas_baseid": "344320",
  "coordinates": {
    "lat": 37.760536,
    "lng": -122.439148
  },
  "address_range": "4447–4455",
  "street_numbers_on_parcel": [
    "4447",
    "4449",
    "4455"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 3,
    "stories": 3,
    "rooms": 15,
    "bathrooms": 6,
    "lot_area_sqft": 1873,
    "building_area_sqft": 4125,
    "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": "4455 4447 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1097282,
    "assessed_improvement_value": 945999,
    "last_sale_date": "2006-10-05"
  },
  "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": "201909202295",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-09-20",
      "status_date": "2019-10-08",
      "estimated_cost": 9800,
      "revised_cost": 9800,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "201308134185",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-08-13",
      "status_date": "2013-09-05",
      "estimated_cost": 2000,
      "revised_cost": 2000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "201307262928",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-07-26",
      "status_date": "2014-04-01",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to app#201211063627. change to decking material from previously approved fire retardant wood to ipe for deck flooring. joists are to be fire treated. no change in material to guardrail.",
      "source": "sf-building-permits"
    },
    {
      "number": "201211063627",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2012-11-06",
      "status_date": "2014-04-01",
      "estimated_cost": 5001,
      "revised_cost": 5001,
      "description": "expand deck in 4449 over roof.",
      "source": "sf-building-permits"
    },
    {
      "number": "201002196838",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-02-19",
      "status_date": "2011-02-14",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa 200612200452; all work is complete",
      "source": "sf-building-permits"
    },
    {
      "number": "201002196839",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-02-19",
      "status_date": "2011-02-14",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa 200610064415; all work is complete",
      "source": "sf-building-permits"
    },
    {
      "number": "200812158491",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-12-15",
      "status_date": "2010-02-22",
      "estimated_cost": 500,
      "revised_cost": 500,
      "description": "add 2 sprinklers in attic-revision to pa# 2008-0403-8685.",
      "source": "sf-building-permits"
    },
    {
      "number": "200809303066",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-09-30",
      "status_date": "2011-02-15",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew pa# 2008/01/24/3184 to finalize work.",
      "source": "sf-building-permits"
    },
    {
      "number": "200809303067",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-09-30",
      "status_date": "2011-02-15",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew pa# 2008/05/12/1854 to finalize work.",
      "source": "sf-building-permits"
    },
    {
      "number": "M123804",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2008-06-24",
      "status_date": "2008-06-24",
      "revised_cost": 1,
      "description": "street space permit only.",
      "source": "sf-building-permits"
    },
    {
      "number": "200805121854",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2008-05-12",
      "status_date": "2010-01-28",
      "estimated_cost": 3000,
      "revised_cost": 3000,
      "description": "revision 200801243184 and 200610064415: at garage add drop down ceiling and raise floor 18\" at garage door area only, remove handrail in flat and 1 window in dining room by front door (right)",
      "source": "sf-building-permits"
    },
    {
      "number": "200805071508",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-05-07",
      "status_date": "2010-02-22",
      "estimated_cost": 2500,
      "revised_cost": 2500,
      "description": "install water service for the fire sprikler system and isntall a back flow preventer only. underground pipe to conform with nfpa 24 -2002 .",
      "source": "sf-building-permits"
    },
    {
      "number": "200804038685",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-04-03",
      "status_date": "2010-02-22",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "sprinkler system as built under application 200707106336.",
      "source": "sf-building-permits"
    },
    {
      "number": "200801243184",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2008-01-24",
      "status_date": "2011-02-15",
      "estimated_cost": 6000,
      "revised_cost": 7000,
      "description": "work on first floor, one unit. lower (e) ceiling to 10'. provide (n) 1 hr rated gypsum bd ceiling. revise room layout dimensions per plan. add 5/8\" gyp.bd to ceiling and walls. (e) garage ro be 1hr rated",
      "source": "sf-building-permits"
    },
    {
      "number": "200710165593",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2007-10-16",
      "status_date": "2008-02-29",
      "estimated_cost": 5001,
      "revised_cost": 5001,
      "description": "replace 4 windows size for size non visible from street deck board replacement less than 50% rear deck in kind",
      "source": "sf-building-permits"
    },
    {
      "number": "200710125339",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2007-10-12",
      "status_date": "2011-02-15",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew appl#200610064415 for final inspection.",
      "source": "sf-building-permits"
    },
    {
      "number": "200708291184",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2007-08-29",
      "status_date": "2011-02-14",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to appl. #200707106336 to shown as-built conditions. 2\" dedicated meter instead of combination meter. 3rd unit added under appl.#200612220452.",
      "source": "sf-building-permits"
    },
    {
      "number": "200707106336",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2007-07-10",
      "status_date": "2010-02-22",
      "estimated_cost": 14000,
      "revised_cost": 14000,
      "description": "install new automatic fire sprinkler system per nfpa 13. 72 heads",
      "source": "sf-building-permits"
    },
    {
      "number": "200612220452",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2006-12-22",
      "status_date": "2010-01-28",
      "estimated_cost": 100000,
      "revised_cost": 100000,
      "description": "build out residential unit and garage, framing, sheetrock, concrete, plumbing, hvac & electrical. install cabinets, floors and refinish floors, tile.",
      "source": "sf-building-permits"
    },
    {
      "number": "200610064415",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2006-10-06",
      "status_date": "2010-02-02",
      "estimated_cost": 20000,
      "revised_cost": 20000,
      "description": "add bathroom, remodel bathroom new kitchen cabinets, new sheetrock insulation. kitchen counter op u cabinets only",
      "source": "sf-building-permits"
    },
    {
      "number": "M32536",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2005-05-18",
      "status_date": "2005-05-18",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "9418633",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1994-11-14",
      "status_date": "1995-05-23",
      "estimated_cost": 4500,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "8919295",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1989-10-11",
      "status_date": "1990-09-21",
      "estimated_cost": 15000,
      "description": "replace plaster on ceiling - replace wall 5/8 sheet rock",
      "source": "sf-building-permits"
    },
    {
      "number": "8917354",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "1989-09-21",
      "status_date": "1990-03-16",
      "estimated_cost": 20000,
      "description": "fire damage, remove plaster from stove ceiling",
      "source": "sf-building-permits"
    },
    {
      "number": "8910592",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1989-06-16",
      "status_date": "1989-07-20",
      "estimated_cost": 2700,
      "revised_cost": 0,
      "description": "re - roofing",
      "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=4447",
      "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=2692037&$order=closed_roll_year%20DESC&$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=2692&lot=037",
      "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=2692037",
      "retrieved": "2026-07-28"
    }
  ]
}