{
 "generated_at": "2026-10-14T22:54:24+09:00",
 "data_through": "2026-04-17",
 "source": [
  {
   "name": "3D都市モデル（Project PLATEAU）東京都23区（2025年度）",
   "publisher": "国土交通省",
   "url": "https://www.geospatial.jp/ckan/dataset/plateau-13118-arakawa-ku-2025",
   "license": "公共データ利用規約 第1.0版（PDL1.0、CC BY 4.0 互換）。tokeilab が加工"
  },
  {
   "name": "国勢調査 小地域境界データ（令和2年）",
   "publisher": "総務省統計局（e-Stat）",
   "url": "https://www.e-stat.go.jp/",
   "license": "政府統計の総合窓口（e-Stat）利用規約（CC BY 4.0 互換）。tokeilab が加工"
  },
  {
   "name": "郵便番号データ（町域の読み）",
   "publisher": "日本郵便株式会社",
   "url": "https://www.post.japanpost.jp/service/search/zipcode/download/kogaki-zip.html",
   "license": "著作権の主張なし・自由に配布可。tokeilab が加工"
  }
 ],
 "license": "CC-BY-4.0",
 "license_notice": "CC BY 4.0, tokeilab。国土交通省 PLATEAU（PDL1.0）、e-Stat、日本郵便 郵便番号データを tokeilab が加工して作成。",
 "schema_url": "https://tokeilab.org/schema/sunlight/",
 "canonical_url": "https://tokeilab.org/sunlight/13118/13118002002/",
 "language": "ja",
 "notice": "これは計算による推定（シミュレーション）で、実測ではありません。樹木、バルコニー・ひさし、屋根の形、天気、データ作成後に建った建物や建て替えは反映していません。建物は箱型に単純化し、階の高さは一律 3 m と仮定しています。物件の購入・賃貸などの判断には、現地での確認や日影図などとあわせてお使いください。",
 "data": {
  "ward": {
   "ward_code": "13118",
   "name_ja": "荒川区",
   "name_en": "Arakawa City"
  },
  "town": {
   "town_code": "13118002002",
   "name_ja": "荒川二丁目",
   "full_name_ja": "東京都荒川区荒川二丁目",
   "kana": "アラカワ",
   "name_en": "Arakawa 2-chome",
   "name_en_auto": false,
   "lat": 35.7383,
   "lon": 139.783
  },
  "stats": {
   "buildings": 907,
   "buildings_with_exterior_face": 907,
   "buildings_with_south_face": 797,
   "dec15_south_1f_q1": 0,
   "dec15_south_1f_median": 0,
   "dec15_south_1f_q3": 130,
   "share_dec15_best_top_2h": 0.7012,
   "dec15_best_top_q1": 90,
   "dec15_best_top_median": 210,
   "dec15_best_top_q3": 340,
   "annual_mean_best_top_mean": 347.6732,
   "mean_floors": 2.0772,
   "share_dec15_south_1f_2h": 0.2748,
   "highrise_share": 0.0022,
   "edge_uncertain": 0,
   "height_uncertain": 12,
   "hist_dec15_best_top": [
    172,
    99,
    110,
    136,
    123,
    63,
    58,
    64,
    67,
    15,
    0
   ],
   "hist_dec15_south_1f": [
    499,
    79,
    54,
    51,
    36,
    37,
    17,
    21,
    3,
    0,
    0
   ]
  },
  "residential": {
   "buildings": 759,
   "buildings_with_exterior_face": 759,
   "buildings_with_south_face": 665,
   "dec15_south_1f_q1": 0,
   "dec15_south_1f_median": 0,
   "dec15_south_1f_q3": 110,
   "share_dec15_best_top_2h": 0.7009,
   "dec15_best_top_q1": 90,
   "dec15_best_top_median": 210,
   "dec15_best_top_q3": 320,
   "annual_mean_best_top_mean": 346.2743,
   "mean_floors": 2.1252,
   "share_dec15_south_1f_2h": 0.2346,
   "highrise_share": 0.0013,
   "edge_uncertain": 0,
   "height_uncertain": 4,
   "hist_dec15_best_top": [
    144,
    83,
    100,
    118,
    104,
    53,
    43,
    49,
    54,
    11,
    0
   ],
   "hist_dec15_south_1f": [
    440,
    69,
    49,
    36,
    24,
    30,
    8,
    8,
    1,
    0,
    0
   ]
  },
  "usage_counts": {
   "401": 9,
   "402": 2,
   "411": 520,
   "412": 111,
   "413": 80,
   "415": 48,
   "421": 13,
   "422": 23,
   "431": 13,
   "441": 16,
   "452": 1,
   "454": 10,
   "461": 61
  },
  "top10_dec15_best_top": [
   "13118-bldg-21257",
   "13118-bldg-21868",
   "13118-bldg-22844",
   "13118-bldg-22944",
   "13118-bldg-19933",
   "13118-bldg-21759",
   "13118-bldg-21893",
   "13118-bldg-20091",
   "13118-bldg-20689",
   "13118-bldg-21504"
  ],
  "bottom10_dec15_best_top": [
   "13118-bldg-19911",
   "13118-bldg-19937",
   "13118-bldg-20041",
   "13118-bldg-20092",
   "13118-bldg-20233",
   "13118-bldg-20241",
   "13118-bldg-20290",
   "13118-bldg-20291",
   "13118-bldg-20295",
   "13118-bldg-20297"
  ],
  "links": {
   "map": "https://tokeilab.org/sunlight/map/?lat=35.7383&lon=139.783&z=17",
   "buildings_api": "https://api.tokeilab.org/api/v1/sunlight/town/13118002002/buildings?page=1",
   "building_api": "https://api.tokeilab.org/api/v1/sunlight/building/{building_id}",
   "building_page": "https://tokeilab.org/sunlight/building/?id={building_id}"
  },
  "model": {
   "params_hash": "00cbc2db66",
   "model_version": "2",
   "methodology": "https://tokeilab.org/sunlight/methodology/"
  }
 }
}