{
  "address": "3401–3411 20th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/20th-street/3401/",
  "apn": "3610001",
  "block": "3610",
  "lot": "001",
  "eas_baseid": "362457",
  "coordinates": {
    "lat": 37.758618,
    "lng": -122.417167
  },
  "address_range": "3401–3411",
  "street_numbers_on_parcel": [
    "3401",
    "3403",
    "3407",
    "3409",
    "3411"
  ],
  "parcel": {
    "year_built": 1908,
    "units": 6,
    "stories": 3,
    "rooms": 28,
    "bathrooms": 6,
    "lot_area_sqft": 2848,
    "building_area_sqft": 7209,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 5 to 14 Units",
    "construction_type_code": "D",
    "zoning": "RM-1",
    "supervisor_district": 9,
    "assessor_neighborhood": "Inner Mission",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "0000 3401 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 452044,
    "assessed_improvement_value": 610262,
    "last_sale_date": "2000-11-01"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "Historic Survey Result",
    "yearbuilt": "1908",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202107265061",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2021-07-26",
      "status_date": "2022-04-07",
      "estimated_cost": 44600,
      "revised_cost": 44600,
      "description": "remodel kitchen and bathroom. one kithcen, one bath.",
      "source": "sf-building-permits"
    },
    {
      "number": "M976708",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-09-11",
      "status_date": "2018-09-11",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201803305193",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-03-30",
      "status_date": "2018-09-24",
      "estimated_cost": 500,
      "revised_cost": 500,
      "description": "to comply with n.o.v 201654791. remove exting garbage chute in reference to item # 2",
      "source": "sf-building-permits"
    },
    {
      "number": "201708033730",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2017-08-03",
      "status_date": "2019-02-08",
      "estimated_cost": 40000,
      "revised_cost": 50000,
      "description": "soft story retrofit per sfebc fema p-807. n/a for maher. work at basement level only. perform seismic upgrade as required by sf soft story mandatory retrofit program per fema p-807",
      "source": "sf-building-permits"
    },
    {
      "number": "201705317964",
      "type": "otc alterations permit",
      "status": "cancelled",
      "filed": "2017-05-31",
      "status_date": "2023-08-24",
      "estimated_cost": 9800,
      "revised_cost": 0,
      "description": "comply w/nov #201654791 - install (2) fire sprinklers in the existing exterior trash chute utilizing a tie into the existing limited area, domestic water fed fire system supply line in basement/storage area.",
      "source": "sf-building-permits"
    },
    {
      "number": "201403060036",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-03-06",
      "status_date": "2014-07-25",
      "estimated_cost": 7200,
      "revised_cost": 7200,
      "description": "to comply w/nov # 201447818. repair stairs, siding, windows & interior finish like in kind at ground level southside to existing due to fire damage. utility room 3407, laundry room, first & second floor stairs, utility rom 3401, storage rm, & basement. not visible from street.",
      "source": "sf-building-permits"
    },
    {
      "number": "200711218714",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2007-11-21",
      "status_date": "2007-11-29",
      "estimated_cost": 2000,
      "revised_cost": 2000,
      "description": "repair dryrot in rear stairs. repairs shall not exceed 50% of existing stairs.",
      "source": "sf-building-permits"
    },
    {
      "number": "200201247686",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-01-24",
      "status_date": "2002-03-19",
      "estimated_cost": 15000,
      "revised_cost": 15000,
      "description": "remodel kitchen, bathroom, painting interior replace 4 rear window (same size) licensed elec, plumbe",
      "source": "sf-building-permits"
    },
    {
      "number": "200110221329",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2001-10-22",
      "status_date": "2002-03-19",
      "estimated_cost": 20000,
      "revised_cost": 20000,
      "description": "remodel kitchen & bathroom painting interior replace 4 rear windows (same size)",
      "source": "sf-building-permits"
    },
    {
      "number": "200107103297",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2001-07-10",
      "status_date": "2001-10-19",
      "estimated_cost": 20000,
      "revised_cost": 20000,
      "description": "remodel kitchen & bathroom, painting, interior replace, 4 rear windows, same size",
      "source": "sf-building-permits"
    },
    {
      "number": "200104267789",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2001-04-26",
      "status_date": "2001-10-19",
      "estimated_cost": 20000,
      "revised_cost": 20000,
      "description": "remodel kitchen & bathroom,painting interior,replace 4rear windows(same size & location). no structu",
      "source": "sf-building-permits"
    },
    {
      "number": "9318002",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1993-10-14",
      "status_date": "1994-03-18",
      "estimated_cost": 4900,
      "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=20TH&street_type=ST&address_number=3401",
      "retrieved": "2026-07-31"
    },
    {
      "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=3610001&$order=closed_roll_year%20DESC&$limit=1",
      "retrieved": "2026-07-31"
    },
    {
      "id": "sf-building-permits",
      "name": "SF Dept. of Building Inspection via DataSF",
      "query": "https://data.sfgov.org/resource/i98e-djp9.json?block=3610&lot=001",
      "retrieved": "2026-07-31"
    },
    {
      "id": "sf-planning",
      "name": "SF Planning Department — Historic Resource Status by Parcel via DataSF",
      "query": "https://data.sfgov.org/resource/3tsw-4idn.json?apn=3610001",
      "retrieved": "2026-07-31"
    }
  ]
}