{
  "address": "4600–4602 18th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/18th-street/4600/",
  "apn": "2658002",
  "block": "2658",
  "lot": "002",
  "eas_baseid": "343556",
  "coordinates": {
    "lat": 37.760713,
    "lng": -122.441078
  },
  "address_range": "4600–4602",
  "street_numbers_on_parcel": [
    "4600",
    "4602"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 2,
    "stories": 2,
    "rooms": 12,
    "bathrooms": 2,
    "lot_area_sqft": 1897,
    "building_area_sqft": 3500,
    "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": "4602 4600 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1265747,
    "assessed_improvement_value": 843829,
    "last_sale_date": "2000-11-02"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "Historic Survey Result",
    "yearbuilt": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201907105565",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-07-10",
      "status_date": "2019-09-04",
      "estimated_cost": 23000,
      "revised_cost": 23000,
      "description": "replace roof w/50-year shingles. no change to roofline, façade or appearance. no other work.",
      "source": "sf-building-permits"
    },
    {
      "number": "M1094507",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-06-12",
      "status_date": "2019-06-12",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M488427",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2014-05-14",
      "status_date": "2014-05-14",
      "revised_cost": 1,
      "description": "street space & sidewalk repair",
      "source": "sf-building-permits"
    },
    {
      "number": "200406156461",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2004-06-15",
      "status_date": "2004-08-03",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew 200112114850 for final only.",
      "source": "sf-building-permits"
    },
    {
      "number": "200404201719",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2004-04-20",
      "status_date": "2004-08-03",
      "estimated_cost": 3800,
      "revised_cost": 3800,
      "description": "to install 2 inch underground service from meter to riser. supplement to 200401144023 for fire",
      "source": "sf-building-permits"
    },
    {
      "number": "200401144023",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2004-01-14",
      "status_date": "2004-08-03",
      "estimated_cost": 2000,
      "revised_cost": 4500,
      "description": "add fire sprinklers to garage",
      "source": "sf-building-permits"
    },
    {
      "number": "200112114980",
      "type": "additions alterations or repairs",
      "status": "issued",
      "filed": "2001-12-11",
      "status_date": "2002-02-25",
      "estimated_cost": 30000,
      "revised_cost": 30000,
      "description": "convert (e) basement to garage",
      "source": "sf-building-permits"
    },
    {
      "number": "9319213",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1993-11-01",
      "status_date": "1995-08-23",
      "estimated_cost": 8950,
      "description": "reroof",
      "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=4600",
      "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=2658002&$order=closed_roll_year%20DESC&$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=002",
      "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=2658002",
      "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": {
    "style": "Queen Anne",
    "here_today_page": "Queen Anne Style house",
    "dcp_1976_survey": "Rated 4 of 5",
    "apn_as_surveyed": "block 2658, lot 2",
    "survey": "Corbett Heights Historic Context Statement (2017)",
    "source": "corbett-heights-context-statement",
    "note": "Listed among the properties the statement puts forward as meriting further study; it is a context statement rather than a survey, and says the list is conservative rather than exhaustive. The 1968 Here Today survey was adopted by the Board of Supervisors under Resolution No. 268-70, so Planning counts the buildings it lists as individual historic resources. The 1976 city architectural survey rated buildings 0 to 5, 5 highest, and was never adopted as a register of historic resources."
  },
  "building": {
    "architect": "Martens & Coffey",
    "completed": 1895,
    "completed_conflict": "The assessor's roll gives 1900; the 2017 Corbett Heights context statement dates the building to 1895."
  }
}