{
  "address": "3680–3684 20th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/20th-street/3680/",
  "apn": "3597027",
  "block": "3597",
  "lot": "027",
  "eas_baseid": "361565",
  "coordinates": {
    "lat": 37.758637,
    "lng": -122.423067
  },
  "address_range": "3680–3684",
  "street_numbers_on_parcel": [
    "3680",
    "3682",
    "3684"
  ],
  "parcel": {
    "year_built": 1911,
    "units": 4,
    "stories": 2,
    "rooms": 13,
    "bathrooms": 3,
    "lot_area_sqft": 2848,
    "building_area_sqft": 2844,
    "use": "Multi-Family Residential",
    "property_class": "Flat & Store 4 units or less",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 9,
    "assessor_neighborhood": "Mission Dolores",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "3684 3680 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 199125,
    "assessed_improvement_value": 258872
  },
  "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": "1911",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202606082775",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2026-06-08",
      "status_date": "2026-06-08",
      "estimated_cost": 70000,
      "revised_cost": 70000,
      "description": "one unit: kitchen and bathroom remodel like for like, relocate (e) tankless water heater to 1st flr of bldg.",
      "source": "sf-building-permits"
    },
    {
      "number": "202502240913",
      "type": "additions alterations or repairs",
      "status": "issued",
      "filed": "2025-06-09",
      "status_date": "2026-05-19",
      "estimated_cost": 98000,
      "revised_cost": 156759,
      "description": "1/f: remodel (e) commerical space to new adu per planning code section 207.1 (3680 20th st). new adu include bedroom, bathroom, kitchen, and dining room.",
      "source": "sf-building-permits"
    },
    {
      "number": "202408078116",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-08-07",
      "status_date": "2024-08-15",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "reroofing. replace scupper roof drain and downspout in kind. no work to (e) roof structural sheathing.",
      "source": "sf-building-permits"
    },
    {
      "number": "M779348",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2017-04-19",
      "status_date": "2017-04-19",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "201301248649",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-01-24",
      "status_date": "2013-01-24",
      "estimated_cost": 3500,
      "revised_cost": 7000,
      "description": "replace tiles of bathroom and kitchen. replace cabinets of kitchen. no windows and doors. no sink and no countertop replacement.",
      "source": "sf-building-permits"
    },
    {
      "number": "201009070316",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-09-07",
      "status_date": "2010-09-20",
      "estimated_cost": 1000,
      "revised_cost": 1000,
      "description": "to comply with his nov #201060089 & 201062186 dated 8/5/2010 & 8/11/2010.",
      "source": "sf-building-permits"
    },
    {
      "number": "200305084145",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2003-05-08",
      "status_date": "2003-05-28",
      "estimated_cost": 70,
      "revised_cost": 300,
      "description": "comply w/ nov200340012 see attaced",
      "source": "sf-building-permits"
    },
    {
      "number": "200202118894",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-02-11",
      "status_date": "2002-04-26",
      "estimated_cost": 200,
      "revised_cost": 200,
      "description": "repair rear stairs per item#1 of this complaint#200224668. repair/comply w/ items 2thru5 of complain",
      "source": "sf-building-permits"
    },
    {
      "number": "9608942",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1996-05-22",
      "status_date": "1997-05-27",
      "estimated_cost": 3000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "8203857",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1982-05-17",
      "status_date": "1983-03-04",
      "estimated_cost": 1600,
      "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=3680",
      "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=3597027&$order=closed_roll_year%20DESC&$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=3597&lot=027",
      "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=3597027",
      "retrieved": "2026-07-31"
    }
  ]
}