{
  "address": "3525–3529 20th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/20th-street/3525/",
  "apn": "3609114",
  "block": "3609",
  "lot": "114",
  "eas_baseid": "494119",
  "coordinates": {
    "lat": 37.75849,
    "lng": -122.419686
  },
  "address_range": "3525–3529",
  "street_numbers_on_parcel": [
    "3525",
    "3527",
    "3529"
  ],
  "also_addressed": [
    "305 SAN CARLOS ST"
  ],
  "parcel": {
    "year_built": 1924,
    "units": 12,
    "stories": 3,
    "rooms": 25,
    "bathrooms": 13,
    "bedrooms": 3,
    "lot_area_sqft": 3184,
    "building_area_sqft": 8661,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 5 to 14 Units",
    "construction_type_code": "D",
    "zoning": "NC-3",
    "supervisor_district": 9,
    "assessor_neighborhood": "Inner Mission",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "0000 0305 SAN CARLOS          ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 3193885,
    "assessed_improvement_value": 1864226,
    "last_sale_date": "2017-10-31"
  },
  "historic_status": {
    "ceqa_status_code": "C",
    "ceqa_status_code_article_10_11": "C",
    "ceqa_status_label": "Not a historical resource",
    "reason": "Historic Survey Result",
    "yearbuilt": "1924",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202505166693",
      "type": "otc alterations permit",
      "status": "filed",
      "filed": "2025-05-16",
      "status_date": "2025-05-16",
      "estimated_cost": 1,
      "revised_cost": 0,
      "description": "placement of evacation plans on each floor of building",
      "source": "sf-building-permits"
    },
    {
      "number": "202112094089",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2021-12-09",
      "status_date": "2022-03-24",
      "estimated_cost": 72000,
      "revised_cost": 72000,
      "description": "one unit: remodel 1 kitchen and 1 bathroom in one unit: non structural",
      "source": "sf-building-permits"
    },
    {
      "number": "202001031189",
      "type": "otc alterations permit",
      "status": "cancelled",
      "filed": "2020-01-03",
      "status_date": "2026-01-09",
      "estimated_cost": 3500,
      "revised_cost": 0,
      "description": "add (n) security bar to (n) adu windows.",
      "source": "sf-building-permits"
    },
    {
      "number": "201907085249",
      "type": "otc alterations permit",
      "status": "filed",
      "filed": "2019-07-08",
      "status_date": "2019-07-08",
      "description": "install 1 fire protection window gate at bd on one unit and 3 steel protection on windows (2) at one unit and (1) at one unit",
      "source": "sf-building-permits"
    },
    {
      "number": "201905019463",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-05-01",
      "status_date": "2019-08-16",
      "estimated_cost": 17000,
      "revised_cost": 17000,
      "description": "upgrade (e) fa system to comply with sffc section 1103.7.6 and include sprinkler monitoring ref 201707038637, 201903135096",
      "source": "sf-building-permits"
    },
    {
      "number": "201903135096",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-03-13",
      "status_date": "2019-07-19",
      "estimated_cost": 8500,
      "revised_cost": 19300,
      "description": "installation of new fire sprinkler system in 2 legalized units 1st fl clouded area. new 2\" fire service underground. ref pa#201702038637",
      "source": "sf-building-permits"
    },
    {
      "number": "M1051107",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-03-13",
      "status_date": "2019-03-13",
      "revised_cost": 0,
      "description": "meter fee - st space on 201702038637",
      "source": "sf-building-permits"
    },
    {
      "number": "M1015727",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-12-11",
      "status_date": "2018-12-11",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201703222076",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2017-03-22",
      "status_date": "2019-02-12",
      "estimated_cost": 6000,
      "revised_cost": 60000,
      "description": "ada bathroom upgrade, two unisex bathrooms in commercial space. soft story retrofit per sfbc chapter 34b engineering criteria 2012 iebc appendix a-4 (commercial). soft story for residential under pa 201607283620",
      "source": "sf-building-permits"
    },
    {
      "number": "201702159449",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2017-02-15",
      "status_date": "2017-06-08",
      "estimated_cost": 36000,
      "revised_cost": 36000,
      "description": "#10 - rehabilitate kitchen, covert existing living room to bedroom, rehabilitate existing bathroom, install washer & dryer.",
      "source": "sf-building-permits"
    },
    {
      "number": "201702038637",
      "type": "additions alterations or repairs",
      "status": "issued",
      "filed": "2017-02-03",
      "status_date": "2018-11-06",
      "estimated_cost": 275000,
      "revised_cost": 275000,
      "description": "remodel 1st fl of (e) 3-story building. remodel to include (2)(n) accessory dwelling units (one studio and one 1-br) from 4 garage spaces. each unit to have a kitchen & bath. soft story per 201607283620. ordinance 162-16",
      "source": "sf-building-permits"
    },
    {
      "number": "201607283620",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-07-28",
      "status_date": "2019-03-25",
      "estimated_cost": 80000,
      "revised_cost": 86000,
      "description": "soft story upgrade per 2012 iebc appendix a-4 (residential). commercial soft story under pa 201703222076",
      "source": "sf-building-permits"
    },
    {
      "number": "M254326",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2011-04-15",
      "status_date": "2011-04-15",
      "revised_cost": 1,
      "description": "street space and mta parking",
      "source": "sf-building-permits"
    },
    {
      "number": "M185105",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2009-11-30",
      "status_date": "2009-11-30",
      "revised_cost": 1,
      "description": "street space permit and sidewalk repair",
      "source": "sf-building-permits"
    },
    {
      "number": "200511077557",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2005-11-07",
      "status_date": "2005-11-28",
      "estimated_cost": 2000,
      "revised_cost": 2000,
      "description": "repair garage as ceiling joist as required,add 1 layer 5/8\"type \"x\" gyp.bd. @ walls & ceiling for dryrot repair.",
      "source": "sf-building-permits"
    },
    {
      "number": "200210158901",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-10-15",
      "status_date": "2002-10-29",
      "estimated_cost": 11000,
      "revised_cost": 11000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200010274266",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2000-10-27",
      "status_date": "2000-12-01",
      "estimated_cost": 300,
      "revised_cost": 300,
      "description": "repair kitchen floor,damaged ceilings, floor covering",
      "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=3525",
      "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=3609114&$order=closed_roll_year%20DESC&$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=3609&lot=114",
      "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=3609114",
      "retrieved": "2026-07-31"
    }
  ]
}