{
  "address": "4631–4633 18th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/18th-street/4631/",
  "apn": "2690028",
  "block": "2690",
  "lot": "028",
  "eas_baseid": "344233",
  "coordinates": {
    "lat": 37.760197,
    "lng": -122.442159
  },
  "address_range": "4631–4633",
  "street_numbers_on_parcel": [
    "4631",
    "4633"
  ],
  "parcel": {
    "year_built": 1903,
    "units": 2,
    "stories": 2,
    "rooms": 9,
    "bathrooms": 4,
    "bedrooms": 5,
    "lot_area_sqft": 3023,
    "building_area_sqft": 2500,
    "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": "4633 4631 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1380000,
    "assessed_improvement_value": 920000,
    "last_sale_date": "2019-11-13"
  },
  "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": "1903",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "M1188887",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2020-01-30",
      "status_date": "2020-01-30",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201912200233",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-12-20",
      "status_date": "2020-02-14",
      "estimated_cost": 80000,
      "revised_cost": 80000,
      "description": "remodel kitchen and add powder room in 4631 & 4633 18th st",
      "source": "sf-building-permits"
    },
    {
      "number": "201205311602",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-05-31",
      "status_date": "2012-09-12",
      "estimated_cost": 1500,
      "revised_cost": 1500,
      "description": "install r-19 batt insulation in ceiling of basement & cover w/ 1/2' sheetrock from garage approx 500 sq ft.",
      "source": "sf-building-permits"
    },
    {
      "number": "201204279317",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-04-27",
      "status_date": "2012-09-12",
      "estimated_cost": 4500,
      "revised_cost": 13000,
      "description": "attic insulation (r-38) in upstairs unit (4683) floor insulation (r-19) in downstairs unit (4631). furnace replacement in attic - new gas line duct replacement",
      "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=4631",
      "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=2690028&$order=closed_roll_year%20DESC&$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=028",
      "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=2690028",
      "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."
  }
}