{
  "address": "3475 16th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/16th-street/3475/",
  "apn": "3565077",
  "block": "3565",
  "lot": "077",
  "eas_baseid": "359888",
  "coordinates": {
    "lat": 37.764287,
    "lng": -122.43027
  },
  "parcel": {
    "year_built": 1912,
    "units": 16,
    "stories": 3,
    "rooms": 44,
    "bathrooms": 16,
    "lot_area_sqft": 2681.25,
    "building_area_sqft": 7365,
    "lot_depth_ft": 48.75,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 5 to 14 Units",
    "construction_type_code": "D",
    "zoning": "RM-1",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 3475 16TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1857175,
    "assessed_improvement_value": 2766417,
    "last_sale_date": "2012-10-23"
  },
  "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": "1912",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202011189190",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-11-18",
      "status_date": "2021-01-29",
      "estimated_cost": 1000,
      "revised_cost": 2000,
      "description": "revision to adu pa# 201808147256. remove 1 exterior door & replace with window. exterior door not feasible due to ceiling height at sidewalk grade.",
      "source": "sf-building-permits"
    },
    {
      "number": "M1216931",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2020-07-20",
      "status_date": "2020-07-22",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M1206127",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2020-05-14",
      "status_date": "2020-05-18",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M1192587",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2020-02-11",
      "status_date": "2020-02-11",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M1174747",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-12-11",
      "status_date": "2019-12-11",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M1150907",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-10-09",
      "status_date": "2019-10-09",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201909030430",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-09-03",
      "status_date": "2020-11-25",
      "estimated_cost": 19500,
      "revised_cost": 19500,
      "description": "add low frequency sounders to an existing building upgraded fire alarm system. sprinkler monitoring for new adu unit on the ground fl app #201907014858, smoke detectors & manual fire alarm system being installed on other floors.",
      "source": "sf-building-permits"
    },
    {
      "number": "M1118487",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-08-01",
      "status_date": "2019-08-01",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201907014858",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-07-01",
      "status_date": "2020-12-09",
      "estimated_cost": 15000,
      "revised_cost": 22477,
      "description": "install new fire sprinkler system with 28 heads for 2 new adu units and 1 existing on the ground floor. install 2\" underground service line for new fire sprinkler system from curb to the bldg. n/a for maher. ref app#201808147256.",
      "source": "sf-building-permits"
    },
    {
      "number": "201906264473",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-06-26",
      "status_date": "2021-01-29",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa 201808147256 to change exit path",
      "source": "sf-building-permits"
    },
    {
      "number": "M1072807",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-04-29",
      "status_date": "2019-04-29",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M1069927",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-04-22",
      "status_date": "2019-04-22",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201902132835",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-02-13",
      "status_date": "2021-01-21",
      "estimated_cost": 90000,
      "revised_cost": 90000,
      "description": "soft story retrofit per sfebc chapter 4d engineering criteria 2016 cebc appendix a-4.",
      "source": "sf-building-permits"
    },
    {
      "number": "201808147256",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2018-08-14",
      "status_date": "2021-01-29",
      "estimated_cost": 75000,
      "revised_cost": 300000,
      "description": "add two adu's per ord 162-16 at existing basement 3",
      "source": "sf-building-permits"
    },
    {
      "number": "201702280257",
      "type": "otc alterations permit",
      "status": "withdrawn",
      "filed": "2017-02-28",
      "status_date": "2019-02-13",
      "estimated_cost": 66000,
      "revised_cost": 0,
      "description": "soft story retrofit per sfbc chapter 34b engineering criteria 2012 iebc appendix a-4",
      "source": "sf-building-permits"
    },
    {
      "number": "201311010884",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2013-11-01",
      "status_date": "2015-08-14",
      "estimated_cost": 500,
      "revised_cost": 500,
      "description": "to comply with pnoe 12255. removal of towerstream wifi antenna site. remove 4 antennas & keep 1 otard antenna.",
      "source": "sf-building-permits"
    },
    {
      "number": "M397747",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-05-29",
      "status_date": "2013-05-29",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201211305204",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-11-30",
      "status_date": "2013-02-27",
      "estimated_cost": 800,
      "revised_cost": 1500,
      "description": "to comply w/ complaint #201279101. add five storage spaces to basement.",
      "source": "sf-building-permits"
    },
    {
      "number": "201207205364",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-07-20",
      "status_date": "2012-07-20",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "one unit: to otbain final inspection for work approved under pa # 200912103030. all work is complete.",
      "source": "sf-building-permits"
    },
    {
      "number": "201206011693",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-06-01",
      "status_date": "2012-06-01",
      "estimated_cost": 6000,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa # 200912103030. all work is complete.",
      "source": "sf-building-permits"
    },
    {
      "number": "201205079870",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-05-07",
      "status_date": "2012-07-16",
      "estimated_cost": 18000,
      "revised_cost": 18000,
      "description": "one unit: remove and replace kitchen, new counter top, sink, faucet. replace toilet, vanity, angels stop plumbing as need if update electrical on kitchen and bathroom. no structural work. ligths to comply with cec 150 (k)",
      "source": "sf-building-permits"
    },
    {
      "number": "201204168372",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-04-16",
      "status_date": "2012-05-24",
      "estimated_cost": 2000,
      "revised_cost": 3000,
      "description": "convert extg bath to new laundry room at basement.",
      "source": "sf-building-permits"
    },
    {
      "number": "M311347",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-03-30",
      "status_date": "2012-03-30",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "201108031682",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-08-03",
      "status_date": "2011-08-23",
      "estimated_cost": 7333,
      "revised_cost": 7333,
      "description": "reroofing.",
      "source": "sf-building-permits"
    },
    {
      "number": "201106228716",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-06-22",
      "status_date": "2011-09-06",
      "estimated_cost": 16000,
      "revised_cost": 16000,
      "description": "replace rotted wood in rear stair case (approx 30-90%) replace stair threads, posts, hand rail as needed. less than 50% in kind repair, no change to window, wall and doors.",
      "source": "sf-building-permits"
    },
    {
      "number": "201106077536",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-06-07",
      "status_date": "2011-08-18",
      "estimated_cost": 18000,
      "revised_cost": 18000,
      "description": "one unit: kitchen: remove & replace all cabinets, sink, lights & receptacles. bathroom: remove & replace vanity, sink, tub, fixtures, lights & switches he lighting thoughout w/ occupancy sensor. no change to exhaust system, plumbing & electrical as needed.",
      "source": "sf-building-permits"
    },
    {
      "number": "201006164676",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-06-16",
      "status_date": "2010-06-29",
      "estimated_cost": 2000,
      "revised_cost": 2000,
      "description": "replace countertop and sink in kitchen.",
      "source": "sf-building-permits"
    },
    {
      "number": "200912103030",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2009-12-10",
      "status_date": "2009-12-10",
      "estimated_cost": 6000,
      "revised_cost": 6000,
      "description": "kitchen remodel one unit, cabinets, countertops, no structural or new lighting",
      "source": "sf-building-permits"
    },
    {
      "number": "M25123",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2003-10-06",
      "status_date": "2003-10-06",
      "revised_cost": 0,
      "description": "sidewalk repair",
      "source": "sf-building-permits"
    },
    {
      "number": "200103053431",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2001-03-05",
      "status_date": "2015-12-10",
      "estimated_cost": 1300,
      "revised_cost": 1300,
      "description": "install 2 fire sprinkler heads at each shute, connect to existing 1 half sprg system at basement-3 h",
      "source": "sf-building-permits"
    },
    {
      "number": "8409357",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1984-08-28",
      "status_date": "1987-11-25",
      "estimated_cost": 2000,
      "description": "fire profing & sheetrook in basement",
      "source": "sf-building-permits"
    },
    {
      "number": "8402330",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1984-03-06",
      "status_date": "1984-11-02",
      "estimated_cost": 350,
      "description": "repair bath fixtures one unit install water heater.",
      "source": "sf-building-permits"
    },
    {
      "number": "8310178",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1983-10-11",
      "status_date": "1983-12-15",
      "estimated_cost": 600,
      "description": "general repairs gotter down pipes porch deck stair fix doors",
      "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=3475",
      "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=3565077&$order=closed_roll_year%20DESC&$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=3565&lot=077",
      "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=3565077",
      "retrieved": "2026-07-28"
    }
  ]
}