{
  "source": {
    "title": "令和3年度マンション大規模修繕工事に関する実態調査",
    "publisher": "国土交通省",
    "surveyYearLabel": "令和3年度",
    "priceBaseFiscalYear": 2021,
    "sampleSize": 818,
    "companyCount": 200,
    "summaryUrl": "https://www.mlit.go.jp/jutakukentiku/house/content/001477900.pdf",
    "reportUrl": "https://www.mlit.go.jp/jutakukentiku/house/content/001619430.pdf",
    "retrieved": "2026-08-22",
    "costCaveat": "工事金額に共通仮設費および消費税を含まない"
  },
  "note": "金額は共通仮設費および消費税を含まない。価格時点は令和3年度なので、現在の見積りと比較する際は物価上昇の補正が必要。",
  "costPerUnit": {
    "unit": "万円/戸",
    "bins": [
      {
        "label": "25万円/戸 以下",
        "upper": 25,
        "share": 2.1
      },
      {
        "label": "〜50万円/戸",
        "upper": 50,
        "share": 3.5
      },
      {
        "label": "〜75万円/戸",
        "upper": 75,
        "share": 9.5
      },
      {
        "label": "〜100万円/戸",
        "upper": 100,
        "share": 24.7
      },
      {
        "label": "〜125万円/戸",
        "upper": 125,
        "share": 27
      },
      {
        "label": "〜150万円/戸",
        "upper": 150,
        "share": 17.4
      },
      {
        "label": "〜175万円/戸",
        "upper": 175,
        "share": 6.8
      },
      {
        "label": "〜200万円/戸",
        "upper": 200,
        "share": 2.3
      },
      {
        "label": "200万円/戸 超",
        "upper": null,
        "share": 2.8
      }
    ],
    "noAnswerShare": 3.8,
    "byRound": [
      {
        "id": "first",
        "label": "1回目",
        "n": 331,
        "q1": 90.9,
        "median": 110.2,
        "q3": 134,
        "average": 151.6
      },
      {
        "id": "second",
        "label": "2回目",
        "n": 194,
        "q1": 87.8,
        "median": 106.1,
        "q3": 129.8,
        "average": 112.4
      },
      {
        "id": "thirdPlus",
        "label": "3回目以上",
        "n": 242,
        "q1": 76.8,
        "median": 97,
        "q3": 125.7,
        "average": 106.1
      }
    ]
  },
  "costPerSqm": {
    "unit": "万円/㎡",
    "byRound": [
      {
        "id": "first",
        "label": "1回目",
        "n": 297,
        "q1": 0.9,
        "median": 1.1,
        "q3": 1.4,
        "average": 1.3
      },
      {
        "id": "second",
        "label": "2回目",
        "n": 181,
        "q1": 1.1,
        "median": 1.3,
        "q3": 1.6,
        "average": 1.5
      },
      {
        "id": "thirdPlus",
        "label": "3回目以上",
        "n": 155,
        "q1": 0.9,
        "median": 1.2,
        "q3": 1.7,
        "average": 1.9
      }
    ]
  },
  "cycleYears": [
    {
      "id": "first",
      "label": "1回目",
      "years": 15.6
    },
    {
      "id": "second",
      "label": "2回目",
      "years": 14
    },
    {
      "id": "thirdPlus",
      "label": "3回目以上",
      "years": 12.9
    }
  ],
  "costBreakdown": {
    "total": [
      {
        "label": "建築系工事",
        "share": 60.3
      },
      {
        "label": "仮設工事",
        "share": 22.8
      },
      {
        "label": "諸経費①②",
        "share": 10.3,
        "note": "諸経費①=現場管理費・一般管理費・法定福利費等 / 諸経費②=大規模修繕瑕疵保険の保険料"
      }
    ],
    "architectural": [
      {
        "label": "外壁関係",
        "share": 49.4,
        "note": "外壁塗装・外壁タイル・シーリング工事"
      },
      {
        "label": "防水関係",
        "share": 32,
        "note": "屋根防水・床防水"
      }
    ]
  },
  "highRiseComparison": {
    "highRise": {
      "label": "超高層マンション（20階以上）",
      "n": 45
    },
    "others": {
      "label": "それ以外",
      "n": 763
    },
    "finding": "戸あたり工事金額に大きな差はみられないものの、床面積あたり工事金額では超高層マンションの方が安い傾向"
  }
}