{
  "address": "4616 18th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/18th-street/4616/",
  "apn": "2658007",
  "block": "2658",
  "lot": "007",
  "eas_baseid": "343560",
  "coordinates": {
    "lat": 37.760692,
    "lng": -122.44151
  },
  "parcel": {
    "year_built": 1900,
    "rooms": 9,
    "bathrooms": 3,
    "bedrooms": 4,
    "lot_area_sqft": 2060,
    "building_area_sqft": 2542,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "NA",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 4616 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1193745,
    "assessed_improvement_value": 795828,
    "last_sale_date": "2006-07-18"
  },
  "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": "201708245841",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2017-08-24",
      "status_date": "2017-09-11",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "replace 8.5 of foundation on rear of building",
      "source": "sf-building-permits"
    },
    {
      "number": "201411202115",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-11-20",
      "status_date": "2015-01-27",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "install concrete grade beam foundation at garage door opening. no changes to other members.",
      "source": "sf-building-permits"
    },
    {
      "number": "201410017774",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-10-01",
      "status_date": "2014-11-05",
      "estimated_cost": 8199,
      "revised_cost": 8199,
      "description": "remove and replace existing windows in kitchen/dining area with new windows, all windows in back of house. total 2 windows, u factor is 0.32 max.",
      "source": "sf-building-permits"
    },
    {
      "number": "201409297592",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-09-29",
      "status_date": "2015-01-27",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "improve structural support for existing bay window, replace existing header over door. no changes to exterior. no architectural changes. finish to match existing.",
      "source": "sf-building-permits"
    },
    {
      "number": "200111062530",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2001-11-06",
      "status_date": "2002-03-06",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa#200009110100",
      "source": "sf-building-permits"
    },
    {
      "number": "200108297124",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2001-08-29",
      "status_date": "2002-02-22",
      "estimated_cost": 5500,
      "revised_cost": 5500,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200009110100",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2000-09-11",
      "status_date": "2001-11-09",
      "estimated_cost": 75000,
      "revised_cost": 75000,
      "description": "replace upper kitchen w/bathrm, combine entryways , install new windows all work is on upper level",
      "source": "sf-building-permits"
    },
    {
      "number": "200008218430",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2000-08-21",
      "status_date": "2001-08-09",
      "revised_cost": 98000,
      "description": "add plywood & steal frame @ basement only for seismic improvement",
      "source": "sf-building-permits"
    },
    {
      "number": "9511420",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1995-07-24",
      "status_date": "1995-08-07",
      "estimated_cost": 1400,
      "description": "termite work repair dry rot at base of rear wall",
      "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=4616",
      "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=2658007&$order=closed_roll_year%20DESC&$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=2658&lot=007",
      "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=2658007",
      "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"
    },
    {
      "id": "architecture-preservation-professionals-biographies",
      "name": "San Francisco Planning Department, Architecture, Planning, & Preservation Professionals: A Collection of Biographies (volume M–O), citywide historic context statement, adopted November 17, 2021, updated December 30, 2025",
      "query": "https://citypln-m-extnl.sfgov.org/SharedLinks.aspx?accesskey=819c20a033e71980c63a96c7fcf1503b3292220b4408abf97897f8fc58c05144&VaultGUID=A4A7DACD-B0DC-4322-BD29-F6F07103C6E0",
      "listing": "https://sfplanning.org/project/sf-histories-historic-context-statements#completed",
      "label": "Architecture, Planning & Preservation Professionals: A Collection of Biographies, adopted 2021",
      "retrieved": "2026-09-02"
    },
    {
      "id": "sf-planning-commission-minutes-2001-02-15",
      "name": "San Francisco City Planning Commission, minutes of the meeting of 15 February 2001",
      "label": "San Francisco City Planning Commission minutes, San Francisco Public Library (Internet Archive)",
      "query": "https://archive.org/details/50minutesofsanfran2001san/page/n172/mode/1up",
      "retrieved": "2026-11-02"
    }
  ],
  "historic_survey": {
    "survey": "Corbett Heights Historic Context Statement (2017)",
    "source": "corbett-heights-context-statement"
  },
  "building": {
    "architect": "Newsom & Newsom",
    "completed": 1907,
    "completed_conflict": "The assessor's roll gives 1900; the 2017 Corbett Heights context statement dates the building to 1907."
  },
  "historical_record": [
    {
      "date": "1907",
      "kind": "construction",
      "description": "Designed by architect Samuel Newsom with his sons Sidney and Noble.",
      "source": "architecture-preservation-professionals-biographies"
    },
    {
      "date": "2001-02-15",
      "kind": "planning decision",
      "description": "The City Planning Commission took discretionary review and denied the proposed merger of two dwelling units into one.",
      "source": "sf-planning-commission-minutes-2001-02-15"
    },
    {
      "date": "2001-02-15",
      "kind": "occupancy",
      "description": "The building contained two dwelling units.",
      "source": "sf-planning-commission-minutes-2001-02-15"
    }
  ]
}