{
  "address": "457 Duboce Avenue, San Francisco, CA 94117",
  "path": "/san-francisco/castro/duboce-avenue/457/",
  "apn": "3537057",
  "block": "3537",
  "lot": "057",
  "eas_baseid": "358542",
  "coordinates": {
    "lat": 37.769114,
    "lng": -122.430455
  },
  "parcel": {
    "year_built": 1900,
    "units": 1,
    "stories": 1,
    "rooms": 6,
    "bathrooms": 1,
    "lot_area_sqft": 2748,
    "building_area_sqft": 1338,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RM-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Duboce Triangle",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 0457 DUBOCE              AV0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1337122,
    "assessed_improvement_value": 573052,
    "last_sale_date": "2021-11-30"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District, Historic Survey Result",
    "yearbuilt": "1900",
    "survey_name": "457 Duboce Ave AB",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Duboce Triangle Historic District",
    "california_register_status": "Eligible (not listed)",
    "national_register_status": "Not listed",
    "article_10_11_status": "No local landmark protection",
    "local_landmark_protection": false,
    "period_of_significance": "ca 1870–ca 1920",
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "202510278230",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-10-27",
      "status_date": "2025-11-26",
      "estimated_cost": 40500,
      "revised_cost": 40500,
      "description": "re-roofing (no hot works)",
      "source": "sf-building-permits"
    },
    {
      "number": "200410156881",
      "type": "additions alterations or repairs",
      "status": "approved",
      "filed": "2004-10-15",
      "status_date": "2005-12-07",
      "estimated_cost": 75000,
      "revised_cost": 75000,
      "description": "rear horizontal & vertical addition to (e) single family dwelling",
      "source": "sf-building-permits"
    },
    {
      "number": "9025457",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1990-12-13",
      "status_date": "1991-03-01",
      "estimated_cost": 1500,
      "description": "install plywood panel covered with sheet rock, nail at edges",
      "source": "sf-building-permits"
    },
    {
      "number": "9008341",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1990-05-01",
      "status_date": "1990-12-17",
      "estimated_cost": 7150,
      "description": "reroofing",
      "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=DUBOCE&street_type=AVE&address_number=457",
      "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=3537057&$order=closed_roll_year%20DESC&$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=3537&lot=057",
      "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=3537057",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-historic-districts",
      "name": "SF Planning Department — Historic Districts via DataSF",
      "query": "https://data.sfgov.org/resource/63x5-g3m4.json?$where=intersects(the_geom,%20%27POINT(-122.43045490853751%2037.76911436267761)%27)",
      "retrieved": "2026-07-28"
    },
    {
      "id": "duboce-triangle-context-statement",
      "name": "Christopher VerPlanck (VerPlanck Historic Preservation Consulting), Duboce Triangle Historic Context Statement, prepared for the Duboce Triangle Neighborhood Association, dated August 26, 2022, adopted 2022",
      "query": "https://sfplanning.s3.amazonaws.com/default/files/Preservation/DuboceTriangleHCS/preserv_duboce_triangleHCS-draft.pdf",
      "listing": "https://sfplanning.org/project/sf-histories-historic-context-statements#completed",
      "label": "Duboce Triangle Historic Context Statement, adopted 2022",
      "retrieved": "2026-08-13"
    }
  ],
  "historic_survey": {
    "survey": "Duboce Triangle Historic Context Statement (2022)",
    "source": "duboce-triangle-context-statement",
    "style": "Late Italianate cottage",
    "note": "Named as an example of the single-family dwellings still going up in Duboce Triangle in the 1890s, as multi-family buildings were becoming the norm. Christopher VerPlanck's context statement of 2022 surveyed 552 properties in Duboce Triangle for the Duboce Triangle Neighborhood Association."
  }
}