{
  "address": "4639–4641 18th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/18th-street/4639/",
  "apn": "2690026",
  "block": "2690",
  "lot": "026",
  "eas_baseid": "344231",
  "coordinates": {
    "lat": 37.760186,
    "lng": -122.442331
  },
  "address_range": "4639–4641",
  "street_numbers_on_parcel": [
    "4639",
    "4641"
  ],
  "parcel": {
    "year_built": 1908,
    "units": 2,
    "stories": 2,
    "rooms": 10,
    "bathrooms": 2,
    "lot_area_sqft": 3025,
    "building_area_sqft": 2950,
    "lot_depth_ft": 21,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "4641 4639 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2221010,
    "assessed_improvement_value": 1095212,
    "last_sale_date": "2014-12-12"
  },
  "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": "1908",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202508263939",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-08-26",
      "status_date": "2025-10-07",
      "estimated_cost": 14000,
      "revised_cost": 14000,
      "description": "re-roofing: remove and replace roofing material / existing roofing material (in-kind)",
      "source": "sf-building-permits"
    },
    {
      "number": "202507100590",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-07-10",
      "status_date": "2025-07-16",
      "estimated_cost": 500,
      "revised_cost": 1500,
      "description": "repair dry rot on exterior stairs in rear to comply with nov 202538961 item 2. repairing less than 50%",
      "source": "sf-building-permits"
    },
    {
      "number": "M849328",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2017-10-30",
      "status_date": "2017-10-30",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M820868",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2017-08-18",
      "status_date": "2017-08-18",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M753387",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2017-01-10",
      "status_date": "2017-01-10",
      "revised_cost": 1,
      "description": "street space permit - renewal of permit # 201606270942",
      "source": "sf-building-permits"
    },
    {
      "number": "201608175270",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-08-17",
      "status_date": "2018-02-15",
      "estimated_cost": 50000,
      "revised_cost": 50000,
      "description": "removal of two (2) posts and introduction of stiffening elements in garage level.",
      "source": "sf-building-permits"
    },
    {
      "number": "201608165093",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-08-16",
      "status_date": "2018-02-15",
      "estimated_cost": 50000,
      "revised_cost": 50000,
      "description": "interior remodel of 2/f- new opening at center wall kitchen. new closets and relocate laundry.",
      "source": "sf-building-permits"
    },
    {
      "number": "201606270942",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-06-27",
      "status_date": "2018-02-15",
      "estimated_cost": 20000,
      "revised_cost": 38000,
      "description": "kitchen and powder room remodel. replace existing patio doors, replace (e) powder room window in lightwell(westside). replace bedroom window in lightwell (westside). replace (e) kitchen window.",
      "source": "sf-building-permits"
    },
    {
      "number": "201604205292",
      "type": "otc alterations permit",
      "status": "cancelled",
      "filed": "2016-04-20",
      "status_date": "2026-01-09",
      "estimated_cost": 150000,
      "revised_cost": 0,
      "description": "convert 1st floor storage to livingspace for one unit 18th street. including bath and infill lightwell at 1st floor only. install exterior door and 2 windows(not visible to street). new foundation and slab on grade at 1st floor. install new patio slab.",
      "source": "sf-building-permits"
    },
    {
      "number": "M208550",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2010-06-25",
      "status_date": "2010-06-25",
      "revised_cost": 1,
      "description": "street space permit ( bpa # 201006225016)",
      "source": "sf-building-permits"
    },
    {
      "number": "201006225016",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2010-06-22",
      "status_date": "2010-06-23",
      "estimated_cost": 75000,
      "revised_cost": 75000,
      "description": "remodel kitchens & bath rooms @ 2nd. & 3rd. floors, replace windows. no additional sq.ft.",
      "source": "sf-building-permits"
    },
    {
      "number": "9803445",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1998-03-02",
      "status_date": "1998-04-01",
      "estimated_cost": 5900,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "8900306",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1989-01-09",
      "status_date": "1989-09-01",
      "estimated_cost": 40000,
      "description": "remodel kitchen in each of the two units",
      "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=4639",
      "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=2690026&$order=closed_roll_year%20DESC&$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=2690&lot=026",
      "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=2690026",
      "retrieved": "2026-07-28"
    },
    {
      "id": "corbett-heights-context-statement",
      "name": "Michael R. Corbett, Corbett Heights, San Francisco (Western Part of Eureka Valley) Historic Context Statement, prepared for Corbett Heights Neighbors and funded by the Historic Preservation Fund Committee, adopted by the San Francisco Historic Preservation Commission 16 August 2017 (Motion No. 0314, Case No. 2015-006003SRV)",
      "query": "http://default.sfplanning.org/Preservation/CorbettHeightsHCS/hp_corbett_hcs_HCS_FINAL-081617.pdf",
      "listing": "https://sfplanning.org/project/sf-histories-historic-context-statements#completed",
      "label": "Corbett Heights Historic Context Statement, adopted 2017",
      "retrieved": "2026-08-13"
    }
  ],
  "historic_survey": {
    "dcp_1976_survey": "Rated 2 of 5",
    "apn_as_surveyed": "block 2690, lot 26, 27, 28, 29",
    "survey": "Corbett Heights Historic Context Statement (2017)",
    "source": "corbett-heights-context-statement",
    "note": "The 1976 city architectural survey rated buildings 0 to 5, 5 highest, and was never adopted as a register of historic resources."
  }
}