{
  "address": "477–481 Duboce Avenue, San Francisco, CA 94117",
  "path": "/san-francisco/castro/duboce-avenue/477/",
  "apn": "3537053",
  "block": "3537",
  "lot": "053",
  "eas_baseid": "358540",
  "coordinates": {
    "lat": 37.769093,
    "lng": -122.430801
  },
  "address_range": "477–481",
  "street_numbers_on_parcel": [
    "477",
    "479",
    "481"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 3,
    "stories": 3,
    "rooms": 19,
    "bathrooms": 3,
    "lot_area_sqft": 2748,
    "building_area_sqft": 4428,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RM-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Duboce Triangle",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0481 0477 DUBOCE              AV0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2672754,
    "assessed_improvement_value": 1145463,
    "last_sale_date": "2021-12-10"
  },
  "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": "477-481 Duboce Ave",
    "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": "202109239075",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2021-09-23",
      "status_date": "2021-09-23",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain a final inspection for work approved under pa# 201406128234 & 201404092810 and 201006023685. all work is complete.",
      "source": "sf-building-permits"
    },
    {
      "number": "202103166611",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2021-03-16",
      "status_date": "2021-03-18",
      "estimated_cost": 500,
      "revised_cost": 500,
      "description": "install handrail on interior staircase to abate his complaint #202172432",
      "source": "sf-building-permits"
    },
    {
      "number": "201406128234",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2014-06-12",
      "status_date": "2014-06-19",
      "estimated_cost": 35000,
      "revised_cost": 50000,
      "description": "revision to pa#201404092810 replace all of north foundation, replace front half of west foundation & front half of centerline foundation only.",
      "source": "sf-building-permits"
    },
    {
      "number": "201404092810",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2014-04-09",
      "status_date": "2014-04-14",
      "estimated_cost": 25000,
      "revised_cost": 25000,
      "description": "replace foundation along east wall. infill lightwell along east wall in basement. replace centerline beams and footings.",
      "source": "sf-building-permits"
    },
    {
      "number": "201203025261",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "2012-03-02",
      "status_date": "2024-11-06",
      "estimated_cost": 28000,
      "description": "rebuild & extend rear decks & stairs. add roof deck. add stairs to roof deck.",
      "source": "sf-building-permits"
    },
    {
      "number": "201109144640",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-09-14",
      "status_date": "2012-06-26",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa 201006023685; all work is complete",
      "source": "sf-building-permits"
    },
    {
      "number": "201008178982",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-08-17",
      "status_date": "2012-06-26",
      "estimated_cost": 14000,
      "revised_cost": 14000,
      "description": "revision to 201006023685, revise foundation for rear sunroom, revise roof framing",
      "source": "sf-building-permits"
    },
    {
      "number": "201006023685",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2010-06-02",
      "status_date": "2012-06-26",
      "estimated_cost": 71000,
      "revised_cost": 71000,
      "description": "1st floor: demo non-bearing walls; 2nd & 3rd floors: level sunroom floors & install folding doors at rear; 3rd floor: remodel kitchen & bath, install washer/dryer, enlarge closet. rear sunroom: repair wood rot at roof, new studs at first new beams as requried.",
      "source": "sf-building-permits"
    },
    {
      "number": "200202048434",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2002-02-04",
      "status_date": "2002-08-04",
      "estimated_cost": 8000,
      "revised_cost": 8000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9011836",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1990-06-14",
      "status_date": "1990-08-09",
      "estimated_cost": 500,
      "revised_cost": 0,
      "description": "remove brick chimney & close up walls; no stuct. alterations",
      "source": "sf-building-permits"
    },
    {
      "number": "8611712",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1986-09-23",
      "status_date": "1987-04-09",
      "estimated_cost": 9955,
      "description": "conver living room to garage, construct back wall",
      "source": "sf-building-permits"
    },
    {
      "number": "8606198",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1986-05-28",
      "status_date": "1987-02-24",
      "estimated_cost": 1500,
      "description": "add sky light in kitchen, install shower & move sink",
      "source": "sf-building-permits"
    },
    {
      "number": "8512470",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "1985-11-04",
      "status_date": "1986-05-05",
      "estimated_cost": 1000,
      "description": "install sky lite change windows",
      "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=477",
      "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=3537053&$order=closed_roll_year%20DESC&$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=053",
      "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=3537053",
      "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(-122.4308005511958%2037.7690928964862)%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": "Queen Anne / Neo-Grec",
    "year_built_as_surveyed": "Ca. 1895",
    "note": "One of the properties the statement puts forward as a potential city landmark candidate, a list it calls 37 properties in one passage and 38 in another and prints with 38 entries; it says further research will be required to confirm any of them. Christopher VerPlanck's context statement of 2022 surveyed 552 properties in Duboce Triangle for the Duboce Triangle Neighborhood Association. Dates it gives as “Ca.” are its own estimates."
  }
}