{
  "address": "3673 16th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/16th-street/3673/",
  "apn": "3562027",
  "block": "3562",
  "lot": "027",
  "eas_baseid": "359765",
  "coordinates": {
    "lat": 37.76385,
    "lng": -122.434708
  },
  "parcel": {
    "year_built": 1900,
    "units": 2,
    "stories": 2,
    "rooms": 8,
    "bathrooms": 2,
    "lot_area_sqft": 3249,
    "building_area_sqft": 1992,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 8,
    "assessor_neighborhood": "Duboce Triangle",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "3675 3673 16TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 836704,
    "assessed_improvement_value": 900618,
    "last_sale_date": "2007-11-14"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District",
    "yearbuilt": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Duboce Triangle Historic District Extension",
    "california_register_status": "Eligible (not listed)",
    "national_register_status": "Not listed",
    "article_10_11_status": "No local landmark protection",
    "local_landmark_protection": false,
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "M799328",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2017-06-20",
      "status_date": "2017-06-20",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M760327",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2017-02-10",
      "status_date": "2017-02-10",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "201701267967",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2017-01-26",
      "status_date": "2017-02-08",
      "estimated_cost": 1,
      "revised_cost": 250,
      "description": "comply with n.o.v. #201574641 - tear down illegal shed in back yard",
      "source": "sf-building-permits"
    },
    {
      "number": "201610079826",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-10-07",
      "status_date": "2017-07-31",
      "estimated_cost": 30000,
      "revised_cost": 88000,
      "description": "add 2nd unit on 1st floor.interior remodel: install new kitchen and new bathroom. add insulation and 1 hour wall and ceiling separation. install new lighting, receptacles and switches. add new combi tankless heater for combined domestic & hydraunic heating system. new flooring and interior finishes.",
      "source": "sf-building-permits"
    },
    {
      "number": "M713387",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2016-08-15",
      "status_date": "2016-08-15",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201607081940",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-07-08",
      "status_date": "2017-08-09",
      "estimated_cost": 50000,
      "revised_cost": 50000,
      "description": "voluntary structural strengthening and replacement of brick foundation with reinforced concrete foundation to rear portion of structure",
      "source": "sf-building-permits"
    },
    {
      "number": "M126330",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2008-07-16",
      "status_date": "2008-07-16",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M119770",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2008-05-19",
      "status_date": "2008-05-19",
      "revised_cost": 1,
      "description": "street space & sidewalk permit only.",
      "source": "sf-building-permits"
    },
    {
      "number": "M116486",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2008-04-17",
      "status_date": "2008-04-17",
      "revised_cost": 1,
      "description": "street space permit only.",
      "source": "sf-building-permits"
    },
    {
      "number": "200803207635",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-03-20",
      "status_date": "2008-08-26",
      "estimated_cost": 40000,
      "revised_cost": 40000,
      "description": "remodel 1st floor living space. reconfigure existing rooms by moving interior partition walls, non load bearing, relocate exist bath, new laundry closet, replace woodburning fireplace w/gas, new elec throughout except in kitchen",
      "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=16TH&street_type=ST&address_number=3673",
      "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=3562027&$order=closed_roll_year%20DESC&$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=3562&lot=027",
      "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=3562027",
      "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(-122.43470781341061%2037.7638499617665)%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": "San Francisco Stick-Eastlake",
    "year_built_as_surveyed": "Ca. 1890",
    "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."
  }
}