{
  "as_of": "2026-11-02",
  "area_tsubo": 40,
  "region": "関東郊外・省エネ地域区分6",
  "status": "STANDARD_SPEC_REPRESENTATIVE_BUDGET_NOT_SALES_AVERAGE_OR_QUOTATION",
  "baseline_notes": "メーカーは2026年再評価の建物・通常付帯・設計の合計を校正。工務店は設計・通常付帯込み基準から数量別仕様差額を加算。一次資料への追加Webアクセスは行わず、提供資料と再計算で確認。",
  "aftercare_notes": "点検・設備故障対応等の将来積立100万円は建築時の初期総額と分離。保証との等価性や30年間の修繕費全額を示すものではなく、融資費の計算にも含めない。",
  "sources": [
    "model/research_inputs.json",
    "model/article_budget.py",
    "model/article_assumptions.json",
    "model/research2_inputs.json",
    "model/research2_budget.py",
    "model/local_cost_assumptions.json",
    "model/local_cost_analysis.py"
  ],
  "cases": [
    {
      "id": "sekisui_house",
      "company": "積水ハウス",
      "structure": "wood",
      "floors": 2,
      "anchor": "reviewed_research2_2026-11-02",
      "aftercare_reserve": 100,
      "label": "積水ハウス・木造2階",
      "maker": {
        "body": 5350.0,
        "energy": 150.0,
        "site": 150.0,
        "design": 100.0,
        "exterior": 250.0,
        "movein": 120.0,
        "owner_fees": 215.192,
        "loan_principal": 4896.0,
        "finance_fee": 107.712,
        "bridge_interest": 24.48,
        "fixed_owner_cash": 83.0,
        "registration_cash": 35.0,
        "insurance_cash": 25.0,
        "stamp_cash": 3.0,
        "water_cash": 20.0,
        "total": 6335.192,
        "building_related": 5600.0,
        "total_low": 5599.3856,
        "total_high": 7704.3904
      },
      "research_series": "sekisui_house_wood",
      "pv_kw": 4.0,
      "battery_kwh": 0.0,
      "energy_description": "太陽光4kW・蓄電池なし",
      "standard_specification": "SHAWOOD。ZEH外皮基準（等級5水準）を標準、等級6はプランにより対応。",
      "price_status": "RESEARCH_CALIBRATED_2_STOREY",
      "local_line_items": [
        {
          "parameter": "base_w5",
          "label": "木造G5・40坪2階の統合基準",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "base",
          "source_ids": [
            "W001",
            "W003",
            "W004",
            "W005"
          ],
          "low": 2700.0,
          "central": 3050.0,
          "high": 3550.0
        },
        {
          "parameter": "structure_se",
          "label": "SE等による大空間の構造差額",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "structure",
          "source_ids": [
            "R07",
            "R08",
            "W118",
            "W119"
          ],
          "low": 100.0,
          "central": 180.0,
          "high": 300.0
        },
        {
          "parameter": "windows_upgrade",
          "label": "大開口窓の製品差額",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "structure",
          "source_ids": [
            "W118",
            "W119",
            "R07"
          ],
          "low": 50.0,
          "central": 100.0,
          "high": 180.0
        },
        {
          "parameter": "tile_premium",
          "label": "意匠性の高い陶板/タイル等への差額",
          "quantity": 165.875588,
          "unit": "万円/外壁㎡",
          "group": "facade",
          "source_ids": [
            "R06",
            "R28"
          ],
          "low": 165.875588,
          "central": 265.400941,
          "high": 398.101412
        },
        {
          "parameter": "interior_shwood",
          "label": "上質内装・設備差（積水木造目標）",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "interior",
          "source_ids": [
            "W004",
            "W107",
            "R17",
            "R18",
            "R19"
          ],
          "low": 180.0,
          "central": 300.0,
          "high": 500.0
        },
        {
          "parameter": "design_extra_high",
          "label": "追加意匠・造作設計",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "services",
          "source_ids": [
            "W004",
            "W014",
            "ST18"
          ],
          "low": 50.0,
          "central": 90.0,
          "high": 160.0
        },
        {
          "parameter": "inspection_extra",
          "label": "追加第三者検査・記録/評価関連予算",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "services",
          "source_ids": [
            "R14",
            "ST13"
          ],
          "low": 40.0,
          "central": 50.0,
          "high": 75.0
        },
        {
          "parameter": "pv_fixed",
          "label": "太陽光固定施工費",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "energy",
          "source_ids": [
            "ENERGY01",
            "ENERGY06",
            "ENERGY13",
            "ENERGY14",
            "ENERGY18"
          ],
          "low": 20.0,
          "central": 25.0,
          "high": 35.0
        },
        {
          "parameter": "pv_per_kw",
          "label": "太陽光容量比例費",
          "quantity": 4.0,
          "unit": "万円/kW",
          "group": "energy",
          "source_ids": [
            "ENERGY01",
            "ENERGY02",
            "ENERGY06",
            "ENERGY13",
            "ENERGY18"
          ],
          "low": 80.0,
          "central": 88.0,
          "high": 120.0
        },
        {
          "parameter": "external",
          "label": "通常外構・駐車2台",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
            "W005",
            "O03"
          ],
          "low": 200.0,
          "central": 250.0,
          "high": 350.0
        },
        {
          "parameter": "fitout",
          "label": "入居設備（空調・照明・カーテン）",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
            "W002",
            "W007",
            "O03"
          ],
          "low": 100.0,
          "central": 120.0,
          "high": 150.0
        }
      ],
      "local_groups": {
        "base": 3050.0,
        "floor": 0,
        "structure": 280.0,
        "facade": 265.400941,
        "interior": 300.0,
        "climate": 0,
        "services": 140.0,
        "energy": 113.0,
        "common": 370.0
      },
      "local_net_wall_m2": 165.875588,
      "local_finish_breakdown": {
        "facade": {
          "baseline": "siding",
          "target": "premium_tile",
          "area": 165.875588,
          "baseline_components": [
            {
              "label": "窯業系サイディング材",
              "low": 0.45,
              "central": 0.55,
              "high": 0.7
            },
            {
              "label": "取付・役物施工",
              "low": 0.35,
              "central": 0.45,
              "high": 0.55
            },
            {
              "label": "目地・シーリング",
              "low": 0.15,
              "central": 0.2,
              "high": 0.25
            }
          ],
          "target_components": [
            {
              "label": "厚物外装用下地等",
              "low": 0.4,
              "central": 0.6,
              "high": 0.8
            },
            {
              "label": "意匠材",
              "low": 0.8,
              "central": 1.15,
              "high": 1.75
            },
            {
              "label": "取付施工",
              "low": 0.55,
              "central": 0.8,
              "high": 1.05
            },
            {
              "label": "目地・端部処理",
              "low": 0.2,
              "central": 0.25,
              "high": 0.3
            }
          ],
          "difference_per_m2": {
            "low": 1.0,
            "central": 1.6,
            "high": 2.4
          },
          "difference": {
            "low": 165.875588,
            "central": 265.400941,
            "high": 398.101412
          }
        },
        "interior": [
          {
            "label": "床の仕様変更",
            "quantity": 80,
            "unit": "㎡",
            "baseline_unit": 0.6,
            "target_unit": 1.35,
            "baseline_grade": "floor_0.6",
            "target_grade": "floor_1.35",
            "baseline_total": 48.0,
            "target_total": 108.0,
            "difference": 60.0
          },
          {
            "label": "建具の仕様変更",
            "quantity": 9,
            "unit": "か所",
            "baseline_unit": 6,
            "target_unit": 11,
            "baseline_grade": "door_6",
            "target_grade": "door_11",
            "baseline_total": 54.0,
            "target_total": 99.0,
            "difference": 45.0
          },
          {
            "label": "キッチンの仕様変更",
            "quantity": 1,
            "unit": "式",
            "baseline_unit": 100,
            "target_unit": 150,
            "baseline_grade": "kitchen_100",
            "target_grade": "kitchen_150",
            "baseline_total": 100.0,
            "target_total": 150.0,
            "difference": 50.0
          },
          {
            "label": "浴室の仕様変更",
            "quantity": 1,
            "unit": "式",
            "baseline_unit": 85,
            "target_unit": 105,
            "baseline_grade": "bath_85",
            "target_grade": "bath_105",
            "baseline_total": 85.0,
            "target_total": 105.0,
            "difference": 20.0
          },
          {
            "label": "洗面の仕様変更",
            "quantity": 1,
            "unit": "式",
            "baseline_unit": 20,
            "target_unit": 30,
            "baseline_grade": "washstand_20",
            "target_grade": "washstand_30",
            "baseline_total": 20.0,
            "target_total": 30.0,
            "difference": 10.0
          },
          {
            "label": "追加の造り付け家具",
            "quantity": 6.5,
            "unit": "m",
            "baseline_unit": 0,
            "target_unit": 10,
            "baseline_grade": "builtins_0",
            "target_grade": "builtins_10",
            "baseline_total": 0.0,
            "target_total": 65.0,
            "difference": 65.0
          },
          {
            "label": "天井の意匠仕上げ",
            "quantity": 20,
            "unit": "㎡",
            "baseline_unit": 0.2,
            "target_unit": 1.95,
            "baseline_grade": "ceiling_0.2",
            "target_grade": "ceiling_1.95",
            "baseline_total": 4.0,
            "target_total": 39.0,
            "difference": 35.0
          },
          {
            "label": "壁の意匠仕上げ",
            "quantity": 15,
            "unit": "㎡",
            "baseline_unit": 0.2,
            "target_unit": 1.2,
            "baseline_grade": "wall_0.2",
            "target_grade": "wall_1.2",
            "baseline_total": 3.0,
            "target_total": 18.0,
            "difference": 15.0
          }
        ],
        "interior_difference": 300.0
      },
      "local_unpriced_items": [],
      "local_complete_initial_total": 4698.998401,
      "comparable_initial_gap": 1636.193599,
      "comparable_initial_gap_pct": 25.827056,
      "local_amount_status": "COMPLETE_SCENARIO_ESTIMATE",
      "local_finish_scope": {
        "facade": "陶板等に近い市販外装への変更",
        "interior": "床・建具・水回り・造作・壁天井の変更",
        "unpriced": []
      },
      "local_initial_total": 4698.998401,
      "local_initial_low": 3848.490501,
      "local_initial_high": 6026.772402,
      "local_total": 4798.998401,
      "local_low": 3948.490501,
      "local_high": 6126.772402,
      "local_energy": 113.0,
      "local_owner_fees": 180.59746,
      "local_body": 3895.400941,
      "initial_gap": 1636.193599,
      "initial_gap_pct": 25.827056,
      "gap": 1536.193599,
      "gap_pct": 24.248572,
      "local_basis": "設計・通常付帯込み基準＋数量別仕様差額。local_initial_totalは算定済み初期小計、local_totalはこれに将来積立を加えた互換値。未算定項目がある場合、全体の初期総額と比較差額は未確定。",
      "local_comparison": {
        "method": "equal_weight_arithmetic_mean",
        "bottom_up_initial": 4698.998401,
        "bottom_up_low": 3848.490501,
        "bottom_up_high": 6026.772402,
        "price_difference_initial": 6153.715494287632,
        "price_difference_low": 5354.195249691007,
        "price_difference_high": 7061.232189527485,
        "mean_initial": 5426.356947643816,
        "manufacturer_minus_mean": 908.835052356184,
        "manufacturer_minus_mean_pct": 14.345817022691405,
        "scenario_low": 3848.490501,
        "scenario_high": 7061.232189527485,
        "method_difference": 1454.717093287632,
        "same_price_order": true
      }
    },
    {
      "id": "sekisui_house",
      "company": "積水ハウス",
      "structure": "wood",
      "floors": 3,
      "anchor": "reviewed_research2_2026-11-02",
      "aftercare_reserve": 100,
      "label": "積水ハウス・木造3階",
      "floor_premium_2026_gross": {
        "body": 450.0,
        "site": 40.0,
        "design": 50.0
      },
      "maker": {
        "body": 5800.0,
        "energy": 105.0,
        "site": 190.0,
        "design": 150.0,
        "exterior": 250.0,
        "movein": 120.0,
        "owner_fees": 225.884,
        "loan_principal": 5292.0,
        "finance_fee": 116.424,
        "bridge_interest": 26.46,
        "fixed_owner_cash": 83.0,
        "registration_cash": 35.0,
        "insurance_cash": 25.0,
        "stamp_cash": 3.0,
        "water_cash": 20.0,
        "total": 6840.884,
        "building_related": 6140.0,
        "total_low": 5997.0776,
        "total_high": 8372.0824
      },
      "research_series": "sekisui_house_wood",
      "pv_kw": 2.666667,
      "battery_kwh": 0.0,
      "energy_description": "太陽光2.7kW・蓄電池0kWh（屋根面積からの参考容量）",
      "standard_specification": "3階建ては商品・性能対応を仮定する参考試算。SHAWOOD。ZEH外皮基準（等級5水準）を標準、等級6はプランにより対応。",
      "price_status": "ADDITIONAL_FLOOR_SCENARIO",
      "local_line_items": [
        {
          "parameter": "base_w5",
          "label": "木造G5・40坪2階の統合基準",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "base",
          "source_ids": [
            "W001",
            "W003",
            "W004",
            "W005"
          ],
          "low": 2700.0,
          "central": 3050.0,
          "high": 3550.0
        },
        {
          "parameter": "floor3_w",
          "label": "木造・同面積3階化",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "floor",
          "source_ids": [
            "W005",
            "W102",
            "W103",
            "W113",
            "W114"
          ],
          "low": 200.0,
          "central": 350.0,
          "high": 600.0
        },
        {
          "parameter": "structure_se",
          "label": "SE等による大空間の構造差額",
          "quantity": 1.15,
          "unit": "万円/式",
          "group": "structure",
          "source_ids": [
            "R07",
            "R08",
            "W118",
            "W119"
          ],
          "low": 115.0,
          "central": 207.0,
          "high": 345.0
        },
        {
          "parameter": "windows_upgrade",
          "label": "大開口窓の製品差額",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "structure",
          "source_ids": [
            "W118",
            "W119",
            "R07"
          ],
          "low": 50.0,
          "central": 100.0,
          "high": 180.0
        },
        {
          "parameter": "tile_premium",
          "label": "意匠性の高い陶板/タイル等への差額",
          "quantity": 203.155276,
          "unit": "万円/外壁㎡",
          "group": "facade",
          "source_ids": [
            "R06",
            "R28"
          ],
          "low": 203.155276,
          "central": 325.048441,
          "high": 487.572662
        },
        {
          "parameter": "interior_shwood",
          "label": "上質内装・設備差（積水木造目標）",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "interior",
          "source_ids": [
            "W004",
            "W107",
            "R17",
            "R18",
            "R19"
          ],
          "low": 180.0,
          "central": 300.0,
          "high": 500.0
        },
        {
          "parameter": "design_extra_high",
          "label": "追加意匠・造作設計",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "services",
          "source_ids": [
            "W004",
            "W014",
            "ST18"
          ],
          "low": 50.0,
          "central": 90.0,
          "high": 160.0
        },
        {
          "parameter": "inspection_extra",
          "label": "追加第三者検査・記録/評価関連予算",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "services",
          "source_ids": [
            "R14",
            "ST13"
          ],
          "low": 40.0,
          "central": 50.0,
          "high": 75.0
        },
        {
          "parameter": "pv_fixed",
          "label": "太陽光固定施工費",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "energy",
          "source_ids": [
            "ENERGY01",
            "ENERGY06",
            "ENERGY13",
            "ENERGY14",
            "ENERGY18"
          ],
          "low": 20.0,
          "central": 25.0,
          "high": 35.0
        },
        {
          "parameter": "pv_per_kw",
          "label": "太陽光容量比例費",
          "quantity": 2.666667,
          "unit": "万円/kW",
          "group": "energy",
          "source_ids": [
            "ENERGY01",
            "ENERGY02",
            "ENERGY06",
            "ENERGY13",
            "ENERGY18"
          ],
          "low": 53.333333,
          "central": 58.666667,
          "high": 80.0
        },
        {
          "parameter": "external",
          "label": "通常外構・駐車2台",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
            "W005",
            "O03"
          ],
          "low": 200.0,
          "central": 250.0,
          "high": 350.0
        },
        {
          "parameter": "fitout",
          "label": "入居設備（空調・照明・カーテン）",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
            "W002",
            "W007",
            "O03"
          ],
          "low": 100.0,
          "central": 120.0,
          "high": 150.0
        }
      ],
      "local_groups": {
        "base": 3050.0,
        "floor": 350.0,
        "structure": 307.0,
        "facade": 325.048441,
        "interior": 300.0,
        "climate": 0,
        "services": 140.0,
        "energy": 83.666667,
        "common": 370.0
      },
      "local_net_wall_m2": 203.155276,
      "local_finish_breakdown": {
        "facade": {
          "baseline": "siding",
          "target": "premium_tile",
          "area": 203.155276,
          "baseline_components": [
            {
              "label": "窯業系サイディング材",
              "low": 0.45,
              "central": 0.55,
              "high": 0.7
            },
            {
              "label": "取付・役物施工",
              "low": 0.35,
              "central": 0.45,
              "high": 0.55
            },
            {
              "label": "目地・シーリング",
              "low": 0.15,
              "central": 0.2,
              "high": 0.25
            }
          ],
          "target_components": [
            {
              "label": "厚物外装用下地等",
              "low": 0.4,
              "central": 0.6,
              "high": 0.8
            },
            {
              "label": "意匠材",
              "low": 0.8,
              "central": 1.15,
              "high": 1.75
            },
            {
              "label": "取付施工",
              "low": 0.55,
              "central": 0.8,
              "high": 1.05
            },
            {
              "label": "目地・端部処理",
              "low": 0.2,
              "central": 0.25,
              "high": 0.3
            }
          ],
          "difference_per_m2": {
            "low": 1.0,
            "central": 1.6,
            "high": 2.4
          },
          "difference": {
            "low": 203.155276,
            "central": 325.048441,
            "high": 487.572662
          }
        },
        "interior": [
          {
            "label": "床の仕様変更",
            "quantity": 80,
            "unit": "㎡",
            "baseline_unit": 0.6,
            "target_unit": 1.35,
            "baseline_grade": "floor_0.6",
            "target_grade": "floor_1.35",
            "baseline_total": 48.0,
            "target_total": 108.0,
            "difference": 60.0
          },
          {
            "label": "建具の仕様変更",
            "quantity": 9,
            "unit": "か所",
            "baseline_unit": 6,
            "target_unit": 11,
            "baseline_grade": "door_6",
            "target_grade": "door_11",
            "baseline_total": 54.0,
            "target_total": 99.0,
            "difference": 45.0
          },
          {
            "label": "キッチンの仕様変更",
            "quantity": 1,
            "unit": "式",
            "baseline_unit": 100,
            "target_unit": 150,
            "baseline_grade": "kitchen_100",
            "target_grade": "kitchen_150",
            "baseline_total": 100.0,
            "target_total": 150.0,
            "difference": 50.0
          },
          {
            "label": "浴室の仕様変更",
            "quantity": 1,
            "unit": "式",
            "baseline_unit": 85,
            "target_unit": 105,
            "baseline_grade": "bath_85",
            "target_grade": "bath_105",
            "baseline_total": 85.0,
            "target_total": 105.0,
            "difference": 20.0
          },
          {
            "label": "洗面の仕様変更",
            "quantity": 1,
            "unit": "式",
            "baseline_unit": 20,
            "target_unit": 30,
            "baseline_grade": "washstand_20",
            "target_grade": "washstand_30",
            "baseline_total": 20.0,
            "target_total": 30.0,
            "difference": 10.0
          },
          {
            "label": "追加の造り付け家具",
            "quantity": 6.5,
            "unit": "m",
            "baseline_unit": 0,
            "target_unit": 10,
            "baseline_grade": "builtins_0",
            "target_grade": "builtins_10",
            "baseline_total": 0.0,
            "target_total": 65.0,
            "difference": 65.0
          },
          {
            "label": "天井の意匠仕上げ",
            "quantity": 20,
            "unit": "㎡",
            "baseline_unit": 0.2,
            "target_unit": 1.95,
            "baseline_grade": "ceiling_0.2",
            "target_grade": "ceiling_1.95",
            "baseline_total": 4.0,
            "target_total": 39.0,
            "difference": 35.0
          },
          {
            "label": "壁の意匠仕上げ",
            "quantity": 15,
            "unit": "㎡",
            "baseline_unit": 0.2,
            "target_unit": 1.2,
            "baseline_grade": "wall_0.2",
            "target_grade": "wall_1.2",
            "baseline_total": 3.0,
            "target_total": 18.0,
            "difference": 15.0
          }
        ],
        "interior_difference": 300.0
      },
      "local_unpriced_items": [],
      "local_complete_initial_total": 5115.110554,
      "comparable_initial_gap": 1725.773446,
      "comparable_initial_gap_pct": 25.227346,
      "local_amount_status": "COMPLETE_SCENARIO_ESTIMATE",
      "local_finish_scope": {
        "facade": "陶板等に近い市販外装への変更",
        "interior": "床・建具・水回り・造作・壁天井の変更",
        "unpriced": []
      },
      "local_initial_total": 5115.110554,
      "local_initial_low": 4078.976763,
      "local_initial_high": 6736.244232,
      "local_total": 5215.110554,
      "local_low": 4178.976763,
      "local_high": 6836.244232,
      "local_energy": 83.666667,
      "local_owner_fees": 189.395446,
      "local_body": 4332.048441,
      "initial_gap": 1725.773446,
      "initial_gap_pct": 25.227346,
      "gap": 1625.773446,
      "gap_pct": 23.765546,
      "local_basis": "設計・通常付帯込み基準＋数量別仕様差額。local_initial_totalは算定済み初期小計、local_totalはこれに将来積立を加えた互換値。未算定項目がある場合、全体の初期総額と比較差額は未確定。",
      "local_comparison": {
        "method": "equal_weight_arithmetic_mean",
        "bottom_up_initial": 5115.110554,
        "bottom_up_low": 4078.976763,
        "bottom_up_high": 6736.244232,
        "price_difference_initial": 6718.143696218495,
        "price_difference_low": 5863.340947329733,
        "price_difference_high": 7688.730486575827,
        "mean_initial": 5916.627125109248,
        "manufacturer_minus_mean": 924.2568748907526,
        "manufacturer_minus_mean_pct": 13.510781280471244,
        "scenario_low": 4078.976763,
        "scenario_high": 7688.730486575827,
        "method_difference": 1603.033142218495,
        "same_price_order": true
      }
    },
    {
      "id": "sumitomo_forestry",
      "company": "住友林業",
      "structure": "wood",
      "floors": 2,
      "anchor": "reviewed_research2_2026-11-02",
      "aftercare_reserve": 100,
      "label": "住友林業・木造2階",
      "maker": {
        "body": 4925.0,
        "energy": 160.0,
        "site": 255.0,
        "design": 120.0,
        "exterior": 250.0,
        "movein": 120.0,
        "owner_fees": 208.928,
        "loan_principal": 4664.0,
        "finance_fee": 102.608,
        "bridge_interest": 23.32,
        "fixed_owner_cash": 83.0,
        "registration_cash": 35.0,
        "insurance_cash": 25.0,
        "stamp_cash": 3.0,
        "water_cash": 20.0,
        "total": 6038.928,
        "building_related": 5300.0,
        "total_low": 5200.9616,
        "total_high": 7111.8624
      },
      "research_series": "sumitomo_forestry_wood",
      "pv_kw": 5.0,
      "battery_kwh": 0.0,
      "energy_description": "太陽光5kW・蓄電池なし",
      "standard_specification": "BFの当年標準仕様と適度な提案。断熱等級6対応の代表例。",
      "price_status": "RESEARCH_CALIBRATED_2_STOREY",
      "local_line_items": [
        {
          "parameter": "base_w6",
          "label": "木造G6・40坪2階の統合基準",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "base",
          "source_ids": [
            "W001",
            "W002",
            "W003",
            "W005",
            "W006",
            "W007",
            "W004"
          ],
          "low": 3000.0,
          "central": 3400.0,
          "high": 4000.0
        },
        {
          "parameter": "structure_se",
          "label": "SE等による大空間の構造差額",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "structure",
          "source_ids": [
            "R07",
            "R08",
            "W118",
            "W119"
          ],
          "low": 100.0,
          "central": 180.0,
          "high": 300.0
        },
        {
          "parameter": "windows_upgrade",
          "label": "大開口窓の製品差額",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "structure",
          "source_ids": [
            "W118",
            "W119",
            "R07"
          ],
          "low": 50.0,
          "central": 100.0,
          "high": 180.0
        },
        {
          "parameter": "facade_plaster",
          "label": "標準サイディングから塗り・吹付仕上げへの差額",
          "quantity": 165.875588,
          "unit": "万円/外壁㎡",
          "group": "facade",
          "source_ids": [
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          ],
          "low": 49.762676,
          "central": 99.525353,
          "high": 165.875588
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        {
          "parameter": "interior_sum",
          "label": "木質内装・設備差（住友林業目標）",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "interior",
          "source_ids": [
            "W004",
            "W107",
            "W108",
            "W118",
            "R17",
            "R18",
            "R19"
          ],
          "low": 240.0,
          "central": 380.0,
          "high": 650.0
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        {
          "parameter": "design_extra_high",
          "label": "追加意匠・造作設計",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "services",
          "source_ids": [
            "W004",
            "W014",
            "ST18"
          ],
          "low": 50.0,
          "central": 90.0,
          "high": 160.0
        },
        {
          "parameter": "inspection_extra",
          "label": "追加第三者検査・記録/評価関連予算",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "services",
          "source_ids": [
            "R14",
            "ST13"
          ],
          "low": 40.0,
          "central": 50.0,
          "high": 75.0
        },
        {
          "parameter": "pv_fixed",
          "label": "太陽光固定施工費",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "energy",
          "source_ids": [
            "ENERGY01",
            "ENERGY06",
            "ENERGY13",
            "ENERGY14",
            "ENERGY18"
          ],
          "low": 20.0,
          "central": 25.0,
          "high": 35.0
        },
        {
          "parameter": "pv_per_kw",
          "label": "太陽光容量比例費",
          "quantity": 5.0,
          "unit": "万円/kW",
          "group": "energy",
          "source_ids": [
            "ENERGY01",
            "ENERGY02",
            "ENERGY06",
            "ENERGY13",
            "ENERGY18"
          ],
          "low": 100.0,
          "central": 110.0,
          "high": 150.0
        },
        {
          "parameter": "external",
          "label": "通常外構・駐車2台",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
            "W005",
            "O03"
          ],
          "low": 200.0,
          "central": 250.0,
          "high": 350.0
        },
        {
          "parameter": "fitout",
          "label": "入居設備（空調・照明・カーテン）",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
            "W002",
            "W007",
            "O03"
          ],
          "low": 100.0,
          "central": 120.0,
          "high": 150.0
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      ],
      "local_groups": {
        "base": 3400.0,
        "floor": 0,
        "structure": 280.0,
        "facade": 99.525353,
        "interior": 380.0,
        "climate": 0,
        "services": 140.0,
        "energy": 135.0,
        "common": 370.0
      },
      "local_net_wall_m2": 165.875588,
      "local_finish_breakdown": {
        "facade": {
          "baseline": "siding",
          "target": "plaster",
          "area": 165.875588,
          "baseline_components": [
            {
              "label": "窯業系サイディング材",
              "low": 0.45,
              "central": 0.55,
              "high": 0.7
            },
            {
              "label": "取付・役物施工",
              "low": 0.35,
              "central": 0.45,
              "high": 0.55
            },
            {
              "label": "目地・シーリング",
              "low": 0.15,
              "central": 0.2,
              "high": 0.25
            }
          ],
          "target_components": [
            {
              "label": "塗り壁下地・モルタル等の材工",
              "low": 0.6,
              "central": 0.9,
              "high": 1.3
            },
            {
              "label": "補強・端部処理",
              "low": 0.15,
              "central": 0.2,
              "high": 0.3
            },
            {
              "label": "意匠性のある塗り・吹付仕上げ材",
              "low": 0.15,
              "central": 0.25,
              "high": 0.35
            },
            {
              "label": "仕上げ施工",
              "low": 0.35,
              "central": 0.45,
              "high": 0.55
            }
          ],
          "difference_per_m2": {
            "low": 0.3,
            "central": 0.6,
            "high": 1.0
          },
          "difference": {
            "low": 49.762676,
            "central": 99.525353,
            "high": 165.875588
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        },
        "interior": [
          {
            "label": "床：標準複合床から樹種・幅・仕上げを選ぶ木質床",
            "quantity": 85,
            "unit": "㎡",
            "baseline_unit": 0.6,
            "target_unit": 1.6,
            "baseline_grade": "floor_0.6",
            "target_grade": "floor_1.6",
            "baseline_total": 51.0,
            "target_total": 136.0,
            "difference": 85.0
          },
          {
            "label": "建具：仕上げ・高さ等の変更",
            "quantity": 10,
            "unit": "か所",
            "baseline_unit": 6,
            "target_unit": 12,
            "baseline_grade": "door_6",
            "target_grade": "door_12",
            "baseline_total": 60.0,
            "target_total": 120.0,
            "difference": 60.0
          },
          {
            "label": "キッチンの仕様変更",
            "quantity": 1,
            "unit": "式",
            "baseline_unit": 100,
            "target_unit": 160,
            "baseline_grade": "kitchen_100",
            "target_grade": "kitchen_160",
            "baseline_total": 100.0,
            "target_total": 160.0,
            "difference": 60.0
          },
          {
            "label": "浴室の仕様変更",
            "quantity": 1,
            "unit": "式",
            "baseline_unit": 85,
            "target_unit": 105,
            "baseline_grade": "bath_85",
            "target_grade": "bath_105",
            "baseline_total": 85.0,
            "target_total": 105.0,
            "difference": 20.0
          },
          {
            "label": "洗面の仕様変更",
            "quantity": 1,
            "unit": "式",
            "baseline_unit": 20,
            "target_unit": 40,
            "baseline_grade": "washstand_20",
            "target_grade": "washstand_40",
            "baseline_total": 20.0,
            "target_total": 40.0,
            "difference": 20.0
          },
          {
            "label": "追加の造り付け家具",
            "quantity": 8,
            "unit": "m",
            "baseline_unit": 0,
            "target_unit": 10,
            "baseline_grade": "builtins_0",
            "target_grade": "builtins_10",
            "baseline_total": 0.0,
            "target_total": 80.0,
            "difference": 80.0
          },
          {
            "label": "天井：クロスから木質仕上げ",
            "quantity": 20,
            "unit": "㎡",
            "baseline_unit": 0.2,
            "target_unit": 2.2,
            "baseline_grade": "ceiling_0.2",
            "target_grade": "ceiling_2.2",
            "baseline_total": 4.0,
            "target_total": 44.0,
            "difference": 40.0
          },
          {
            "label": "壁：クロスから意匠仕上げ",
            "quantity": 15,
            "unit": "㎡",
            "baseline_unit": 0.2,
            "target_unit": 1.2,
            "baseline_grade": "wall_0.2",
            "target_grade": "wall_1.2",
            "baseline_total": 3.0,
            "target_total": 18.0,
            "difference": 15.0
          }
        ],
        "interior_difference": 380.0
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      "local_unpriced_items": [],
      "local_complete_initial_total": 4991.303101,
      "comparable_initial_gap": 1047.624899,
      "comparable_initial_gap_pct": 17.347862,
      "local_amount_status": "COMPLETE_SCENARIO_ESTIMATE",
      "local_finish_scope": {
        "facade": "標準サイディングから意匠性のある塗り・吹付仕上げへ変更。下地・仕上げの材工差0.6万円/㎡（0.3〜1.0）。",
        "interior": "木質床・建具・水回り・造作・壁天井の変更",
        "unpriced": []
      },
      "local_initial_total": 4991.303101,
      "local_initial_low": 4118.07755,
      "local_initial_high": 6433.138501,
      "local_total": 5091.303101,
      "local_low": 4218.07755,
      "local_high": 6533.138501,
      "local_energy": 135.0,
      "local_owner_fees": 186.777748,
      "local_body": 4159.525353,
      "initial_gap": 1047.624899,
      "initial_gap_pct": 17.347862,
      "gap": 947.624899,
      "gap_pct": 15.691939,
      "local_basis": "設計・通常付帯込み基準＋数量別仕様差額。local_initial_totalは算定済み初期小計、local_totalはこれに将来積立を加えた互換値。未算定項目がある場合、全体の初期総額と比較差額は未確定。",
      "local_comparison": {
        "method": "equal_weight_arithmetic_mean",
        "bottom_up_initial": 4991.303101,
        "bottom_up_low": 4118.07755,
        "bottom_up_high": 6433.138501,
        "price_difference_initial": 5837.6607638482,
        "price_difference_low": 5073.770044189042,
        "price_difference_high": 6703.166780013866,
        "mean_initial": 5414.4819324241,
        "manufacturer_minus_mean": 624.4460675759,
        "manufacturer_minus_mean_pct": 10.34034629285032,
        "scenario_low": 4118.07755,
        "scenario_high": 6703.166780013866,
        "method_difference": 846.3576628482,
        "same_price_order": true
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    },
    {
      "id": "sumitomo_forestry",
      "company": "住友林業",
      "structure": "wood",
      "floors": 3,
      "anchor": "reviewed_research2_2026-11-02",
      "aftercare_reserve": 100,
      "label": "住友林業・木造3階",
      "floor_premium_2026_gross": {
        "body": 650.0,
        "site": 40.0,
        "design": 50.0
      },
      "maker": {
        "body": 5575.0,
        "energy": 111.666667,
        "site": 295.0,
        "design": 170.0,
        "exterior": 250.0,
        "movein": 120.0,
        "owner_fees": 223.868,
        "loan_principal": 5217.333333,
        "finance_fee": 114.781333,
        "bridge_interest": 26.086667,
        "fixed_owner_cash": 83.0,
        "registration_cash": 35.0,
        "insurance_cash": 25.0,
        "stamp_cash": 3.0,
        "water_cash": 20.0,
        "total": 6745.534667,
        "building_related": 6040.0,
        "total_low": 5759.568267,
        "total_high": 8040.469067
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      "research_series": "sumitomo_forestry_wood",
      "pv_kw": 3.333333,
      "battery_kwh": 0.0,
      "energy_description": "太陽光3.3kW・蓄電池0kWh（屋根面積からの参考容量）",
      "standard_specification": "3階建ては商品・性能対応を仮定する参考試算。BFの当年標準仕様と適度な提案。断熱等級6対応の代表例。",
      "price_status": "ADDITIONAL_FLOOR_SCENARIO",
      "local_line_items": [
        {
          "parameter": "base_w6",
          "label": "木造G6・40坪2階の統合基準",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "base",
          "source_ids": [
            "W001",
            "W002",
            "W003",
            "W005",
            "W006",
            "W007",
            "W004"
          ],
          "low": 3000.0,
          "central": 3400.0,
          "high": 4000.0
        },
        {
          "parameter": "floor3_w",
          "label": "木造・同面積3階化",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "floor",
          "source_ids": [
            "W005",
            "W102",
            "W103",
            "W113",
            "W114"
          ],
          "low": 200.0,
          "central": 350.0,
          "high": 600.0
        },
        {
          "parameter": "structure_se",
          "label": "SE等による大空間の構造差額",
          "quantity": 1.15,
          "unit": "万円/式",
          "group": "structure",
          "source_ids": [
            "R07",
            "R08",
            "W118",
            "W119"
          ],
          "low": 115.0,
          "central": 207.0,
          "high": 345.0
        },
        {
          "parameter": "windows_upgrade",
          "label": "大開口窓の製品差額",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "structure",
          "source_ids": [
            "W118",
            "W119",
            "R07"
          ],
          "low": 50.0,
          "central": 100.0,
          "high": 180.0
        },
        {
          "parameter": "facade_plaster",
          "label": "標準サイディングから塗り・吹付仕上げへの差額",
          "quantity": 203.155276,
          "unit": "万円/外壁㎡",
          "group": "facade",
          "source_ids": [
            "local_cost_assumptions.json/facade_assemblies"
          ],
          "low": 60.946583,
          "central": 121.893166,
          "high": 203.155276
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        {
          "parameter": "interior_sum",
          "label": "木質内装・設備差（住友林業目標）",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "interior",
          "source_ids": [
            "W004",
            "W107",
            "W108",
            "W118",
            "R17",
            "R18",
            "R19"
          ],
          "low": 240.0,
          "central": 380.0,
          "high": 650.0
        },
        {
          "parameter": "design_extra_high",
          "label": "追加意匠・造作設計",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "services",
          "source_ids": [
            "W004",
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            "ST18"
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          "low": 50.0,
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        },
        {
          "parameter": "inspection_extra",
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          "quantity": 1.0,
          "unit": "万円/式",
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          "unit": "万円/式",
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          "source_ids": [
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          "high": 35.0
        },
        {
          "parameter": "pv_per_kw",
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        {
          "parameter": "external",
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          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
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            "O03"
          ],
          "low": 200.0,
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        {
          "parameter": "fitout",
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          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
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            "O03"
          ],
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          "central": 120.0,
          "high": 150.0
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      ],
      "local_groups": {
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        "floor": 350.0,
        "structure": 307.0,
        "facade": 121.893166,
        "interior": 380.0,
        "climate": 0,
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        "energy": 98.333333,
        "common": 370.0
      },
      "local_net_wall_m2": 203.155276,
      "local_finish_breakdown": {
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              "label": "窯業系サイディング材",
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            {
              "label": "取付・役物施工",
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              "central": 0.45,
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            },
            {
              "label": "目地・シーリング",
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              "high": 0.25
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          ],
          "target_components": [
            {
              "label": "塗り壁下地・モルタル等の材工",
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              "high": 1.3
            },
            {
              "label": "補強・端部処理",
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              "high": 0.3
            },
            {
              "label": "意匠性のある塗り・吹付仕上げ材",
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              "central": 0.25,
              "high": 0.35
            },
            {
              "label": "仕上げ施工",
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              "high": 0.55
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          ],
          "difference_per_m2": {
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          },
          "difference": {
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        },
        "interior": [
          {
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            "unit": "㎡",
            "baseline_unit": 0.6,
            "target_unit": 1.6,
            "baseline_grade": "floor_0.6",
            "target_grade": "floor_1.6",
            "baseline_total": 51.0,
            "target_total": 136.0,
            "difference": 85.0
          },
          {
            "label": "建具：仕上げ・高さ等の変更",
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            "unit": "か所",
            "baseline_unit": 6,
            "target_unit": 12,
            "baseline_grade": "door_6",
            "target_grade": "door_12",
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            "target_total": 120.0,
            "difference": 60.0
          },
          {
            "label": "キッチンの仕様変更",
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            "unit": "式",
            "baseline_unit": 100,
            "target_unit": 160,
            "baseline_grade": "kitchen_100",
            "target_grade": "kitchen_160",
            "baseline_total": 100.0,
            "target_total": 160.0,
            "difference": 60.0
          },
          {
            "label": "浴室の仕様変更",
            "quantity": 1,
            "unit": "式",
            "baseline_unit": 85,
            "target_unit": 105,
            "baseline_grade": "bath_85",
            "target_grade": "bath_105",
            "baseline_total": 85.0,
            "target_total": 105.0,
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          },
          {
            "label": "洗面の仕様変更",
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            "unit": "式",
            "baseline_unit": 20,
            "target_unit": 40,
            "baseline_grade": "washstand_20",
            "target_grade": "washstand_40",
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            "target_total": 40.0,
            "difference": 20.0
          },
          {
            "label": "追加の造り付け家具",
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            "unit": "m",
            "baseline_unit": 0,
            "target_unit": 10,
            "baseline_grade": "builtins_0",
            "target_grade": "builtins_10",
            "baseline_total": 0.0,
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          },
          {
            "label": "天井：クロスから木質仕上げ",
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            "unit": "㎡",
            "baseline_unit": 0.2,
            "target_unit": 2.2,
            "baseline_grade": "ceiling_0.2",
            "target_grade": "ceiling_2.2",
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          },
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            "target_unit": 1.2,
            "baseline_grade": "wall_0.2",
            "target_grade": "wall_1.2",
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      "gap_pct": 19.030309,
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          "quantity": 1.0,
          "unit": "万円/式",
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          "source_ids": [
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          "source_ids": [
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          "source_ids": [
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            "ENERGY14"
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          "label": "入居設備（空調・照明・カーテン）",
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          "unit": "万円/式",
          "group": "common",
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            {
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      "id": "ichijo",
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        "movein": 120.0,
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          "unit": "万円/式",
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          "group": "services",
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          "central": 270.0,
          "high": 342.0
        },
        {
          "parameter": "floorheat_heat_controls",
          "label": "床暖房熱源・制御・接続",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "climate",
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            "R11",
            "R12"
          ],
          "low": 80.0,
          "central": 110.0,
          "high": 160.0
        },
        {
          "parameter": "pv_fixed",
          "label": "太陽光固定施工費",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "energy",
          "source_ids": [
            "ENERGY01",
            "ENERGY06",
            "ENERGY13",
            "ENERGY14",
            "ENERGY18"
          ],
          "low": 20.0,
          "central": 25.0,
          "high": 35.0
        },
        {
          "parameter": "pv_per_kw",
          "label": "太陽光容量比例費",
          "quantity": 13.475,
          "unit": "万円/kW",
          "group": "energy",
          "source_ids": [
            "ENERGY01",
            "ENERGY02",
            "ENERGY06",
            "ENERGY13",
            "ENERGY18"
          ],
          "low": 269.5,
          "central": 296.45,
          "high": 404.25
        },
        {
          "parameter": "bat7",
          "label": "蓄電池約7.04kWh",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "energy",
          "source_ids": [
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            "ENERGY07"
          ],
          "low": 130.0,
          "central": 160.0,
          "high": 210.0
        },
        {
          "parameter": "shared_credit",
          "label": "PV・蓄電池同時施工調整",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "energy",
          "source_ids": [
            "ENERGY06",
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            "ENERGY14"
          ],
          "low": -30.0,
          "central": -25.0,
          "high": -10.0
        },
        {
          "parameter": "external",
          "label": "通常外構・駐車2台",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
            "W005",
            "O03"
          ],
          "low": 200.0,
          "central": 250.0,
          "high": 350.0
        },
        {
          "parameter": "fitout",
          "label": "入居設備（空調・照明・カーテン）",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
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            "O03"
          ],
          "low": 100.0,
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      ],
      "local_groups": {
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        "facade": 182.463147,
        "interior": 0,
        "climate": 380.0,
        "services": 50.0,
        "energy": 456.45,
        "common": 370.0
      },
      "local_net_wall_m2": 165.875588,
      "local_finish_breakdown": {
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          "baseline": "siding",
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              "label": "窯業系サイディング材",
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            {
              "label": "取付・役物施工",
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              "label": "目地・シーリング",
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          ],
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              "label": "タイル用下地等",
              "low": 0.35,
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            {
              "label": "タイル材",
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              "label": "張付施工",
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      "local_finish_scope": {
        "facade": "全面タイルへの変更",
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      "gap": -895.737671,
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      "local_basis": "設計・通常付帯込み基準＋数量別仕様差額。local_initial_totalは算定済み初期小計、local_totalはこれに将来積立を加えた互換値。未算定項目がある場合、全体の初期総額と比較差額は未確定。",
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      "id": "ichijo",
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      "anchor": "reviewed_research2_2026-11-02",
      "aftercare_reserve": 100,
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      "floor_premium_2026_gross": {
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        "site": 40.0,
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      "maker": {
        "body": 4108.0,
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        "site": 221.5,
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        "movein": 120.0,
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          "label": "木造G6からG7への差額",
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          "quantity": 1.0,
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        {
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          "unit": "万円/式",
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          "source_ids": [
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        {
          "parameter": "pv_per_kw",
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        {
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        {
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          "unit": "万円/式",
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          "label": "通常外構・駐車2台",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
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          "low": 200.0,
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        {
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          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
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        "facade": "全面タイルへの変更",
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      "id": "aqura",
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      "price_status": "RESEARCH_CALIBRATED_2_STOREY",
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        {
          "parameter": "windows_upgrade",
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        {
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        {
          "parameter": "inspection_extra",
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          "unit": "万円/式",
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          "low": 40.0,
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        {
          "parameter": "external",
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        {
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          "label": "追加第三者検査・記録/評価関連予算",
          "quantity": 1.0,
          "unit": "万円/式",
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          ],
          "low": 40.0,
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        {
          "parameter": "external",
          "label": "通常外構・駐車2台",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
            "W005",
            "O03"
          ],
          "low": 200.0,
          "central": 250.0,
          "high": 350.0
        },
        {
          "parameter": "fitout",
          "label": "入居設備（空調・照明・カーテン）",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
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          "low": 100.0,
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        "structure": 0,
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        "interior": 0,
        "climate": 0,
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      "local_net_wall_m2": 203.155276,
      "local_finish_breakdown": {
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          "target": "siding",
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          "baseline_components": [
            {
              "label": "窯業系サイディング材",
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            {
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          ],
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        "facade": "基準の外壁を採用",
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          {
            "label": "追加の造り付け家具",
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            "label": "天井の意匠仕上げ",
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            "label": "壁の意匠仕上げ",
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        {
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        {
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        {
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          "parameter": "hems",
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      "local_net_wall_m2": 203.155276,
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              "label": "窯業系サイディング材",
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            {
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          "parameter": "fitout",
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            {
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          },
          {
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          },
          {
            "label": "キッチンの仕様変更",
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            "baseline_unit": 100,
            "target_unit": 130,
            "baseline_grade": "kitchen_100",
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          {
            "label": "浴室の仕様変更",
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          {
            "label": "追加の造り付け家具",
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            "baseline_grade": "builtins_0",
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          "unit": "万円/式",
          "group": "base",
          "source_ids": [
            "ST04",
            "ST05",
            "ST06",
            "ST07",
            "ST09",
            "ST10"
          ],
          "low": 4200.0,
          "central": 5000.0,
          "high": 6000.0
        },
        {
          "parameter": "floor3_s",
          "label": "鉄骨・同面積3階化",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "floor",
          "source_ids": [
            "ST01",
            "ST04",
            "ST05",
            "ST09"
          ],
          "low": 300.0,
          "central": 400.0,
          "high": 600.0
        },
        {
          "parameter": "thermal_s6",
          "label": "鉄骨G5からG6への差額",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "structure",
          "source_ids": [
            "R01",
            "R23",
            "R24",
            "ST06"
          ],
          "low": 100.0,
          "central": 150.0,
          "high": 280.0
        },
        {
          "parameter": "tile_standard",
          "label": "標準外壁から全面タイルへの差額",
          "quantity": 203.155276,
          "unit": "万円/外壁㎡",
          "group": "facade",
          "source_ids": [
            "R06"
          ],
          "low": 142.208693,
          "central": 223.470803,
          "high": 345.363969
        },
        {
          "parameter": "design_extra_std",
          "label": "標準範囲を超える追加設計の感度",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "services",
          "source_ids": [
            "W001",
            "W007"
          ],
          "low": 0.0,
          "central": 0.0,
          "high": 50.0
        },
        {
          "parameter": "inspection_extra",
          "label": "追加第三者検査・記録/評価関連予算",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "services",
          "source_ids": [
            "R14",
            "ST13"
          ],
          "low": 40.0,
          "central": 50.0,
          "high": 75.0
        },
        {
          "parameter": "climate_firstfloor",
          "label": "1階専用空調の機能代替",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "climate",
          "source_ids": [
            "R13"
          ],
          "low": 90.0,
          "central": 120.0,
          "high": 170.0
        },
        {
          "parameter": "pv_fixed",
          "label": "太陽光固定施工費",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "energy",
          "source_ids": [
            "ENERGY01",
            "ENERGY06",
            "ENERGY13",
            "ENERGY14",
            "ENERGY18"
          ],
          "low": 20.0,
          "central": 25.0,
          "high": 35.0
        },
        {
          "parameter": "pv_per_kw",
          "label": "太陽光容量比例費",
          "quantity": 4.666667,
          "unit": "万円/kW",
          "group": "energy",
          "source_ids": [
            "ENERGY01",
            "ENERGY02",
            "ENERGY06",
            "ENERGY13",
            "ENERGY18"
          ],
          "low": 93.333333,
          "central": 102.666667,
          "high": 140.0
        },
        {
          "parameter": "bat13",
          "label": "蓄電池約13.2kWh",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "energy",
          "source_ids": [
            "ENERGY05",
            "ENERGY06",
            "ENERGY07",
            "ENERGY13",
            "ENERGY14"
          ],
          "low": 180.0,
          "central": 210.0,
          "high": 275.0
        },
        {
          "parameter": "shared_credit",
          "label": "PV・蓄電池同時施工調整",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "energy",
          "source_ids": [
            "ENERGY06",
            "ENERGY13",
            "ENERGY14"
          ],
          "low": -30.0,
          "central": -25.0,
          "high": -10.0
        },
        {
          "parameter": "external",
          "label": "通常外構・駐車2台",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
            "W005",
            "O03"
          ],
          "low": 200.0,
          "central": 250.0,
          "high": 350.0
        },
        {
          "parameter": "fitout_heim",
          "label": "入居設備（1階専用空調あり）",
          "quantity": 1.0,
          "unit": "万円/式",
          "group": "common",
          "source_ids": [
            "W007",
            "R13",
            "O03"
          ],
          "low": 75.0,
          "central": 90.0,
          "high": 120.0
        }
      ],
      "local_groups": {
        "base": 5000.0,
        "floor": 400.0,
        "structure": 150.0,
        "facade": 223.470803,
        "interior": 0,
        "climate": 120.0,
        "services": 50.0,
        "energy": 312.666667,
        "common": 340.0
      },
      "local_net_wall_m2": 203.155276,
      "local_finish_breakdown": {
        "facade": {
          "baseline": "siding",
          "target": "standard_tile",
          "area": 203.155276,
          "baseline_components": [
            {
              "label": "窯業系サイディング材",
              "low": 0.45,
              "central": 0.55,
              "high": 0.7
            },
            {
              "label": "取付・役物施工",
              "low": 0.35,
              "central": 0.45,
              "high": 0.55
            },
            {
              "label": "目地・シーリング",
              "low": 0.15,
              "central": 0.2,
              "high": 0.25
            }
          ],
          "target_components": [
            {
              "label": "タイル用下地等",
              "low": 0.35,
              "central": 0.5,
              "high": 0.7
            },
            {
              "label": "タイル材",
              "low": 0.6,
              "central": 0.9,
              "high": 1.3
            },
            {
              "label": "張付施工",
              "low": 0.55,
              "central": 0.7,
              "high": 0.95
            },
            {
              "label": "目地・端部処理",
              "low": 0.15,
              "central": 0.2,
              "high": 0.25
            }
          ],
          "difference_per_m2": {
            "low": 0.7,
            "central": 1.1,
            "high": 1.7
          },
          "difference": {
            "low": 142.208693,
            "central": 223.470803,
            "high": 345.363969
          }
        },
        "interior": [],
        "interior_difference": 0.0
      },
      "local_unpriced_items": [],
      "local_complete_initial_total": 6821.614039,
      "comparable_initial_gap": -1005.735372,
      "comparable_initial_gap_pct": -17.292922,
      "local_amount_status": "COMPLETE_SCENARIO_ESTIMATE",
      "local_finish_scope": {
        "facade": "全面タイルへの変更",
        "interior": "基準の仕上げ・住宅設備を採用",
        "unpriced": []
      },
      "local_initial_total": 6821.614039,
      "local_initial_low": 5610.409734,
      "local_initial_high": 8695.459831,
      "local_total": 6921.614039,
      "local_low": 5710.409734,
      "local_high": 8795.459831,
      "local_energy": 312.666667,
      "local_owner_fees": 225.476569,
      "local_body": 5893.470803,
      "initial_gap": -1005.735372,
      "initial_gap_pct": -17.292922,
      "gap": -1105.735372,
      "gap_pct": -19.012353,
      "local_basis": "設計・通常付帯込み基準＋数量別仕様差額。local_initial_totalは算定済み初期小計、local_totalはこれに将来積立を加えた互換値。未算定項目がある場合、全体の初期総額と比較差額は未確定。",
      "local_comparison": {
        "method": "equal_weight_arithmetic_mean",
        "bottom_up_initial": 6821.614039,
        "bottom_up_low": 5610.409734,
        "bottom_up_high": 8695.459831,
        "price_difference_initial": 6364.707305714081,
        "price_difference_low": 5086.685350209053,
        "price_difference_high": 8128.68964154861,
        "mean_initial": 6593.16067235704,
        "manufacturer_minus_mean": -777.2820053570405,
        "manufacturer_minus_mean_pct": -13.364824987966697,
        "scenario_low": 5086.685350209053,
        "scenario_high": 8695.459831,
        "method_difference": -456.906733285919,
        "same_price_order": true
      }
    }
  ],
  "schema_version": 3,
  "comparison_controls": {
    "exterior_2026_gross": 250,
    "fitout_2026_gross": 120,
    "loan_fraction": 0.8,
    "loan_fee_net_rate": 0.02,
    "bridge_annual_rate": 0.02,
    "bridge_weighted_years": 0.25,
    "water_join_fee_inside_site": [
      "sumitomo_forestry_wood",
      "tama_wood"
    ],
    "fitout_multiplier": {
      "sekisui_heim_steel": 0.75
    },
    "owner_costs_note": "共通の登記・保険・印紙・水道加入予算に、工事設備税込額80%の借入×税別2%の手数料と年2%・加重3か月のつなぎ利息を加算。過去の実商品料率ではなく比較用の資金条件。支払額や利息へ再課税しない。",
    "common_works_note": "外構250万円は駐車2台等の数量を固定。入居設備120万円は冷房・照明・カーテンの予算。一条の床暖房を理由とした30万円減額は撤回。ハイム鉄骨は本体の1階空調と重なる個別空調30万円を引き90万円。過去の税抜年次比は元調査のメーカー内変化の中央値。",
    "historical_vat_note": "2017〜2019年8%、2020年以降10%。2019年は経過措置適用の代表契約で統一し10%ケースも別途算出。原資料の税率は保存し税抜へ戻してから調整。",
    "floor_premium_note": "3階は既存の個別追加額の参考シナリオを保持。2/3は延床一定・総3階を仮定した屋根面積比で搭載上限ではない。PV費は仮の固定15万円を保持し容量比例部分だけ2/3、蓄電池は維持。Cの全社一律1.15倍は採用しない。",
    "local_energy_note": "固定施工25万円＋太陽光22万円/kW、蓄電7.04kWh160万円・13.2kWh210万円、同時施工25万円控除。工事・税込の比較仮定。太陽光の公的平均単価を大容量・屋根一体設備へ無条件には転用しない。",
    "local_thermal_note": "設計・通常付帯込み基準は木造G5が3050万円、G6が3400万円、鉄骨G5が5000万円。3階化・性能差・外壁面積・内装・追加業務等を別に積み上げる。単価は判断幅を持つ予算仮定。",
    "local_energy_sources": [
      "https://www.jpea.gr.jp/faq/589/",
      "https://www.meti.go.jp/shingikai/energy_environment/storage_system/pdf/20250307_1.pdf"
    ],
    "permit_cash_note": "設計・申請に内包する法定手数料等の支払枠を2017〜24年5万円、2025〜26年10万円と仮置き。総額に追加せず内部配分し、税率変更時に再課税しない。個別の法定料金の実測系列ではない。",
    "maker_pv_fixed_gross": 15
  },
  "solar_5kw_gross_assumption": {
    "2017": 190.0,
    "2018": 175.0,
    "2019": 165.0,
    "2020": 160.0,
    "2021": 150.0,
    "2022": 150.0,
    "2023": 155.0,
    "2024": 160.0,
    "2025": 160.0,
    "2026": 160.0
  },
  "energy_plans": {
    "sekisui_house_wood": {
      "source_pv_kw": 4,
      "stages": [
        {
          "from_year": 2017,
          "pv_kw": 4,
          "battery_kwh": 0,
          "description": "太陽光4kW・蓄電池なし",
          "basis": "SHAWOOD独立調査のZEH相当・4kWの代表例を採用。全棟必須の標準装備という意味ではない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        }
      ],
      "sources": [
        "https://www.sekisuihouse.co.jp/company/topics/topics_2026/20260422/",
        "https://question.realestate.yahoo.co.jp/knowledge/chiebukuro/detail/11155025131/"
      ]
    },
    "sekisui_house_steel": {
      "source_pv_kw": 5,
      "stages": [
        {
          "from_year": 2017,
          "pv_kw": 5,
          "battery_kwh": 0,
          "description": "太陽光5kW・HEMS、蓄電池なし",
          "basis": "鉄骨独立調査の通常の採用例。蓄電池を取りやめた41坪実例等を含み、未確認の全社蓄電池平均を推定しない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        }
      ],
      "sources": [
        "https://www.sekisuihouse.co.jp/company/topics/topics_2026/20260422/"
      ]
    },
    "sumitomo_forestry_wood": {
      "source_pv_kw": 0,
      "stages": [
        {
          "from_year": 2017,
          "pv_kw": 4.3,
          "battery_kwh": 0,
          "description": "太陽光4.3kW・蓄電池なし",
          "basis": "2017年にも太陽光付き見積があるため、2017〜2023年を4.3kW付きの比較例とする。4.3kWは2021実例を参考に固定した仮定で、採用率の加重平均ではない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        },
        {
          "from_year": 2024,
          "pv_kw": 5,
          "battery_kwh": 0,
          "description": "太陽光5kW・蓄電池なし",
          "basis": "2024の5kW約150万円相当例と2025PV採用78.4%を参照。容量は比較用の代表仮定。Reserve限定の蓄電池贈呈を全商品へ広げない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        }
      ],
      "sources": [
        "https://sfc.jp/information/sustainability/pdf/pdf/2019_report.pdf",
        "https://sfc.jp/information/sustainability/environment/climate-change/mitigation.html",
        "https://ameblo.jp/sa-chan234/entry-12820841604.html",
        "https://miyanara-house.com/estimated-amount/"
      ]
    },
    "hebel_house_steel": {
      "source_pv_kw": 5,
      "stages": [
        {
          "from_year": 2017,
          "pv_kw": 0,
          "battery_kwh": 0,
          "description": "太陽光・蓄電池なし",
          "basis": "太陽光標準化前の基本仕様を代表例とする。原調査本体に内包するPV配分を除いて重複を防ぐ。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        },
        {
          "from_year": 2024,
          "pv_kw": 5,
          "battery_kwh": 0,
          "description": "太陽光5kW・蓄電池なし",
          "basis": "2024年5月の戸建全商品PV標準化を反映。5kWは容量仮定。設備購入予算で比較し、第三者所有契約の初期費用ゼロと混同しない。",
          "status": "STANDARD_PV_WITH_ASSUMED_CAPACITY"
        }
      ],
      "sources": [
        "https://www.asahi-kasei.co.jp/file.jsp?id=1003770"
      ]
    },
    "ichijo_wood": {
      "source_pv_kw": 0,
      "stages": [
        {
          "from_year": 2017,
          "pv_kw": 10.5,
          "battery_kwh": 0,
          "description": "太陽光約10〜12kW・蓄電池なし",
          "basis": "独立調査の当時の採用例に近い機器費を使用。10.5kWは範囲内の容量仮定。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        },
        {
          "from_year": 2020,
          "pv_kw": 10.5,
          "battery_kwh": 7.04,
          "description": "太陽光約10〜13.5kW・蓄電池約7kWh",
          "basis": "2020年以降の蓄電池付きパッケージを採用。太陽光容量は代表仮定、機器費は調査年別表。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION",
          "battery_allocation_gross": 85
        },
        {
          "from_year": 2024,
          "pv_kw": 13.475,
          "battery_kwh": 7.04,
          "description": "太陽光約13.5kW・蓄電池約7kWh",
          "basis": "近年の採用例・現行公式13.475kW＋7.04kWhを参考に代表構成を設定。組合せ全体の年次予算を使い機器費へ融資・予備費を再加算しない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION",
          "battery_allocation_gross": 90
        }
      ],
      "sources": [
        "https://www.ichijo.co.jp/technology/energy/solar/",
        "https://tengu.hatenablog.jp/entry/ismart-_estimate",
        "https://ichinavi.net/grand-smart-tsubo-tanka/"
      ]
    },
    "aqura_wood": {
      "source_pv_kw": 0,
      "stages": [
        {
          "from_year": 2017,
          "pv_kw": 0,
          "battery_kwh": 0,
          "description": "太陽光・蓄電池なし",
          "basis": "通常自由設計の基本仕様。2017のPV10.73kW広告や2026のSORA限定商品を全社標準とみなさず、任意設備は中心予算へ含めない。",
          "status": "OPTIONAL_EQUIPMENT_NOT_IN_BASE_SPEC"
        }
      ],
      "sources": [
        "https://www.aqura.co.jp/about/technology1/",
        "https://www.aqura.co.jp/insulation/"
      ]
    },
    "tama_wood": {
      "source_pv_kw": 0,
      "stages": [
        {
          "from_year": 2017,
          "pv_kw": 0,
          "battery_kwh": 0,
          "description": "太陽光・蓄電池なし",
          "basis": "大安心の家の基本仕様。太陽光・蓄電池は要望・予算に応じた提案。2025年度ZEH実績30%も参照し全棟の標準搭載とは扱わない。",
          "status": "OPTIONAL_EQUIPMENT_NOT_IN_BASE_SPEC"
        }
      ],
      "sources": [
        "https://www.tamahome.jp/products/faq/"
      ]
    },
    "sekisui_heim_wood": {
      "source_pv_kw": 5,
      "stages": [
        {
          "from_year": 2017,
          "pv_kw": 5,
          "battery_kwh": 0,
          "description": "太陽光5kW・蓄電池なし",
          "basis": "FY2017PV装着74%、蓄電池21%。独立調査の太陽光容量を代表値として採用。 任意設備の代表構成の仮定であり、全棟一斉導入や同一住宅の値上げを示さない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        },
        {
          "from_year": 2019,
          "pv_kw": 5,
          "battery_kwh": 8,
          "description": "太陽光5kW・蓄電池8kWh",
          "basis": "FY2019蓄電池装着55%、2019年発売の容量・価格のバランスを重視する8kWhを代表例に選択。費用は仮定。 任意設備の代表構成の仮定であり、全棟一斉導入や同一住宅の値上げを示さない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        },
        {
          "from_year": 2022,
          "pv_kw": 5,
          "battery_kwh": 12,
          "description": "太陽光5kW・蓄電池12kWh",
          "basis": "2021年秋の12kWh新商品とFY2022装着83%を反映。2022木造原票の12kWh通常価格税抜75.23万円を費用校正に使用。 任意設備の代表構成の仮定であり、全棟一斉導入や同一住宅の値上げを示さない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        },
        {
          "from_year": 2025,
          "pv_kw": 7,
          "battery_kwh": 13.2,
          "description": "太陽光7kW・蓄電池13.2kWh",
          "basis": "2024年秋の12→13.2kWh改良と2025年7kW採用例を反映した代表仮定。全契約の平均容量ではない。値引き条件不明の費用はレンジを持つ。 任意設備の代表構成の仮定であり、全棟一斉導入や同一住宅の値上げを示さない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        }
      ],
      "sources": [
        "https://www.sekisui.co.jp/ir/event/results/__icsFiles/afieldfile/2021/04/27/20210427kg.pdf",
        "https://www.sekisuiheim.com/info/press/20190115.html",
        "https://www.sekisuiheim.com/info/press/20211014.html",
        "https://www.sekisui.co.jp/news/2024/__icsFiles/afieldfile/2024/10/31/241101.pdf",
        "https://denken-trainer-zekizap.com/sekisuiheim-1/"
      ],
      "battery_gross_assumption": {
        "2019": 120,
        "2020": 115,
        "2021": 110,
        "2022": 82.753,
        "2023": 90,
        "2024": 95,
        "2025": 110,
        "2026": 115
      },
      "battery_cost_note": "2019〜21、2023〜26の機器費は分析仮定。2022原票の通常価格と2025匿名申告の分離仮定約100万円を照合し、容量変更を加味。通常・キャンペーン・セット割の差を条件付き予算幅へ加える。"
    },
    "sekisui_heim_steel": {
      "source_pv_kw": 5.5,
      "stages": [
        {
          "from_year": 2017,
          "pv_kw": 5.5,
          "battery_kwh": 0,
          "description": "太陽光5.5kW・蓄電池なし",
          "basis": "FY2017PV装着74%、蓄電池21%。独立調査の太陽光容量を代表値として採用。 任意設備の代表構成の仮定であり、全棟一斉導入や同一住宅の値上げを示さない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        },
        {
          "from_year": 2019,
          "pv_kw": 5.5,
          "battery_kwh": 8,
          "description": "太陽光5.5kW・蓄電池8kWh",
          "basis": "FY2019蓄電池装着55%、2019年発売の容量・価格のバランスを重視する8kWhを代表例に選択。費用は仮定。 任意設備の代表構成の仮定であり、全棟一斉導入や同一住宅の値上げを示さない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        },
        {
          "from_year": 2022,
          "pv_kw": 5.5,
          "battery_kwh": 12,
          "description": "太陽光5.5kW・蓄電池12kWh",
          "basis": "2021年秋の12kWh新商品とFY2022装着83%を反映。2022木造原票の12kWh通常価格税抜75.23万円を費用校正に使用。 任意設備の代表構成の仮定であり、全棟一斉導入や同一住宅の値上げを示さない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        },
        {
          "from_year": 2025,
          "pv_kw": 7,
          "battery_kwh": 13.2,
          "description": "太陽光7kW・蓄電池13.2kWh",
          "basis": "2024年秋の12→13.2kWh改良と2025年7kW採用例を反映した代表仮定。全契約の平均容量ではない。値引き条件不明の費用はレンジを持つ。 任意設備の代表構成の仮定であり、全棟一斉導入や同一住宅の値上げを示さない。",
          "status": "REPRESENTATIVE_SPEC_ASSUMPTION"
        }
      ],
      "sources": [
        "https://www.sekisui.co.jp/ir/event/results/__icsFiles/afieldfile/2021/04/27/20210427kg.pdf",
        "https://www.sekisuiheim.com/info/press/20190115.html",
        "https://www.sekisuiheim.com/info/press/20211014.html",
        "https://www.sekisui.co.jp/news/2024/__icsFiles/afieldfile/2024/10/31/241101.pdf",
        "https://denken-trainer-zekizap.com/sekisuiheim-1/"
      ],
      "battery_gross_assumption": {
        "2019": 120,
        "2020": 115,
        "2021": 110,
        "2022": 82.753,
        "2023": 90,
        "2024": 95,
        "2025": 110,
        "2026": 115
      },
      "battery_cost_note": "2019〜21、2023〜26の機器費は分析仮定。2022原票の通常価格と2025匿名申告の分離仮定約100万円を照合し、容量変更を加味。通常・キャンペーン・セット割の差を条件付き予算幅へ加える。"
    }
  },
  "standard_specs": {
    "sekisui_house_wood": [
      {
        "from_year": 2017,
        "description": "当年のSHAWOOD・ベルバーン、ZEH相当の外皮・設備。現行等級番号を遡用しない。"
      },
      {
        "from_year": 2022,
        "description": "SHAWOOD。ZEH外皮基準（等級5水準）を標準、等級6はプランにより対応。"
      }
    ],
    "sekisui_house_steel": [
      {
        "from_year": 2017,
        "description": "当年の鉄骨2階建て・Green First系の外皮・標準設備。"
      },
      {
        "from_year": 2022,
        "description": "鉄骨2階建て。ZEH外皮基準（等級5水準）を標準、等級6はプランにより対応。"
      }
    ],
    "sumitomo_forestry_wood": [
      {
        "from_year": 2017,
        "description": "The Forest BF系の当時の標準設備と適度な木質提案。"
      },
      {
        "from_year": 2021,
        "description": "My Forest BF系。360°TRIPLE断熱等の更新を含む当年仕様。"
      },
      {
        "from_year": 2025,
        "description": "BFの当年標準仕様と適度な提案。断熱等級6対応の代表例。"
      }
    ],
    "hebel_house_steel": [
      {
        "from_year": 2017,
        "description": "当年の鉄骨・ALC・二重断熱仕様。"
      },
      {
        "from_year": 2025,
        "description": "断熱等級6標準（地域区分5〜7、プラン条件あり）。"
      }
    ],
    "sekisui_heim_wood": [
      {
        "from_year": 2017,
        "description": "グランツーユーV系、木質ユニット・タイル・当年の断熱と換気。"
      },
      {
        "from_year": 2024,
        "description": "グランツーユーV系、断熱等級6標準（地域区分5〜7、プラン条件あり）。高級デザイナーズへの置換なし。"
      }
    ],
    "sekisui_heim_steel": [
      {
        "from_year": 2017,
        "description": "SPS/パルフェ系、タイル・1階快適エアリー・当年の断熱。"
      },
      {
        "from_year": 2024,
        "description": "鉄骨ユニット・1階快適エアリー・断熱等級6標準（地域区分5〜7、プラン条件あり）。"
      }
    ],
    "ichijo_wood": [
      {
        "from_year": 2017,
        "description": "i-smart系、当時から高断熱・全館床暖房。旧制度の最高等級4を低性能と読み替えない。"
      },
      {
        "from_year": 2023,
        "description": "i-smart系の高断熱・全館床暖房を継続。2023年から断熱王の採用例があり、2024年には等級7への追加0円の公開見積もある。"
      },
      {
        "from_year": 2026,
        "description": "i-smart系、2026年4月の断熱等級7標準化と全館床暖房（地域・プラン条件あり）。"
      }
    ],
    "aqura_wood": [
      {
        "from_year": 2017,
        "description": "当年の通常木造自由設計・標準設備。限定広告の設備を全社標準としない。"
      },
      {
        "from_year": 2022,
        "description": "超空間の家系、当年の構造・外皮・設備仕様。"
      },
      {
        "from_year": 2026,
        "description": "超空間の家系、断熱等級6相当（建築地・プラン・仕様条件あり）。"
      }
    ],
    "tama_wood": [
      {
        "from_year": 2017,
        "description": "大安心の家を基準とする当年の標準。地域商品の仕様差を含む推計誤差あり。"
      },
      {
        "from_year": 2026,
        "description": "大安心の家系、耐震等級3・断熱等級5標準（プラン条件あり）。上位の笑顔の家へ置換しない。"
      }
    ]
  },
  "spec_sources": {
    "sekisui_house": [
      "https://www.sekisuihouse.co.jp/kodate/tech/catalog/comfortability/insulation/",
      "https://www.sekisuihouse.co.jp/company/sustainable/environment/activity2/"
    ],
    "sumitomo_forestry": [
      "https://sfc.jp/information/news/2017/2017-04-20.html",
      "https://sfc.jp/information/news/2021/2021-04-02.html",
      "https://sfc.jp/ie/technology/dannetsu/"
    ],
    "hebel_house": [
      "https://www.asahi-kasei.co.jp/j-koho/press/20170426/index/",
      "https://www.asahi-kasei.co.jp/j-koho/press/20250114/index/"
    ],
    "sekisui_heim": [
      "https://www.sekisuiheim.com/info/press/20171023.html",
      "https://www.sekisuiheim.com/info/press/20231219.html"
    ],
    "ichijo": [
      "https://www.ichijo.co.jp/topics/260403/"
    ],
    "aqura": [
      "https://www.aqura.co.jp/insulation/"
    ],
    "tama": [
      "https://www.tamahome.jp/products/faq/"
    ]
  },
  "amount_unit": "万円",
  "fixed_2026_specification": {
    "status": "COUNTERFACTUAL_WITH_EXPLICIT_SPECIFICATION_ALLOWANCES",
    "target": "2026年の各社代表例と同等の断熱・窓・空調・仕上げ、太陽光容量・蓄電容量。2026年同型商品が過去に存在したという推定ではない。",
    "body_method": "メーカー別の建物・通常付帯・設計の年次推計を維持し、断熱・窓等の不足分を2026年税込価格で仮置き。当該メーカーの税抜建物関連費の年次比で当年額に戻す。公的デフレーターは再加算しない。",
    "unidentified_changes": "差額を分離できない意匠、部材型番、細かな設備変更は追加ゼロの仮定。同一仕様を実測した価格指数ではない。保証制度は過去へ遡及しない。",
    "allowance_status": "全額が分析者の予算仮定。メーカーが提示した等級別追加料金ではない。",
    "specification_allowances": {
      "sekisui_house_wood": [
        {
          "from_year": 2017,
          "allowance_2026_gross": 0,
          "basis": "ZEH系の外皮・ベルバーンを継続する比較。確認できない個別改良の差額を追加ゼロと仮定。"
        }
      ],
      "sekisui_house_steel": [
        {
          "from_year": 2017,
          "allowance_2026_gross": 0,
          "basis": "Green First系と現行ZEH外皮の比較。確認できない個別改良の差額を追加ゼロと仮定。"
        }
      ],
      "sumitomo_forestry_wood": [
        {
          "from_year": 2017,
          "allowance_2026_gross": 150,
          "basis": "現行の等級6対応例へ近づける断熱・窓等の予算仮定。"
        },
        {
          "from_year": 2021,
          "allowance_2026_gross": 100,
          "basis": "断熱・窓の更新後に残る差額の仮定。"
        },
        {
          "from_year": 2024,
          "allowance_2026_gross": 50,
          "basis": "現行性能へ近づける残額の仮定。"
        },
        {
          "from_year": 2025,
          "allowance_2026_gross": 0,
          "basis": "現行の等級6対応例を選ぶ仮定。"
        }
      ],
      "hebel_house_steel": [
        {
          "from_year": 2017,
          "allowance_2026_gross": 150,
          "basis": "現行の等級6相当の断熱材・窓等への差額仮定。"
        },
        {
          "from_year": 2025,
          "allowance_2026_gross": 0,
          "basis": "2025年の断熱等級6標準化後の仕様を採用。"
        }
      ],
      "sekisui_heim_wood": [
        {
          "from_year": 2017,
          "allowance_2026_gross": 150,
          "basis": "現行等級6相当の断熱・窓等への差額仮定。"
        },
        {
          "from_year": 2024,
          "allowance_2026_gross": 0,
          "basis": "2023年12月発表後の等級6仕様を採用。"
        }
      ],
      "sekisui_heim_steel": [
        {
          "from_year": 2017,
          "allowance_2026_gross": 150,
          "basis": "現行等級6相当の断熱・窓等への差額仮定。"
        },
        {
          "from_year": 2024,
          "allowance_2026_gross": 0,
          "basis": "2023年12月発表後の等級6仕様を採用。"
        }
      ],
      "ichijo_wood": [
        {
          "from_year": 2017,
          "allowance_2026_gross": 0,
          "allowance_high_2026_gross": 80,
          "basis": "高断熱・トリプル窓・床暖房は2015年の公式資料で既に確認できる。2017〜25年に等級7相当へ必ず80万円を要する根拠はなく、中央は追加ゼロ、未知の差額0〜80万円を感度に残す。2024年の原見積には断熱王の等級7変更0円の例がある。"
        },
        {
          "from_year": 2026,
          "allowance_2026_gross": 0,
          "allowance_high_2026_gross": 0,
          "basis": "2026年の基準。等級7の正式標準化年だけを理由に一律差額を解消する補正はしない。"
        }
      ],
      "aqura_wood": [
        {
          "from_year": 2017,
          "allowance_2026_gross": 250,
          "basis": "現行等級6相当の断熱・窓等への差額仮定。"
        },
        {
          "from_year": 2022,
          "allowance_2026_gross": 100,
          "basis": "近年世代へ更新後に残る性能差額の仮定。"
        },
        {
          "from_year": 2025,
          "allowance_2026_gross": 0,
          "basis": "調査で価格を参照した2025年AQ Grandの等級6相当を採用。"
        }
      ],
      "tama_wood": [
        {
          "from_year": 2017,
          "allowance_2026_gross": 100,
          "basis": "現行大安心の家の等級5相当へ近づける床・壁・窓等の差額仮定。"
        },
        {
          "from_year": 2022,
          "allowance_2026_gross": 0,
          "basis": "2022年5月発表後の等級5仕様を採用。"
        }
      ]
    },
    "energy_method": "各社の2026年のPV・蓄電容量を固定。各年の同社機器費を太陽光部分と蓄電池部分に分けて容量補正し、追加する前に当年の機器費を全額置き換える。一条のセット分離はこの反実仮想に限る仮定。",
    "early_battery_system_price_proxy": {
      "2017": 18.8,
      "2018": 17.3,
      "2019": 14.0,
      "2020": 14.0
    },
    "early_battery_note": "当年代表例に蓄電池がない年は、同社の最初の蓄電池予算（一条2020年、ハイム2019年）を基準に容量補正。設備費の2017年18.8、2018年17.3、2019年14.0万円/kWhの資料間比を工事込みセットの時間比へ代理適用する仮定。2020年は2019年の14.0を据え置く仮定。補助事業の母集団・年度が異なり、メーカーの実取引指数ではない。容量比例も固定工事費の逓減を分離しない近似。",
    "early_battery_sources": [
      "https://www.meti.go.jp/shingikai/energy_environment/energy_resource/pdf/010_07_00.pdf",
      "https://www.meti.go.jp/shingikai/energy_environment/storage_system/pdf/001_05_00.pdf"
    ],
    "sensitivity_note": "原則は仕様差額を0〜2倍、当年仕様から追加する機器費を0.75〜1.25倍として再計算。一条の2017〜25年は必須追加費の根拠がないため中央0、仕様差額0〜80万円の感度を別に残す。2026年は両図の中心値が一致。統計的な信頼区間ではない。",
    "review_note": "2024年の等級7アップグレード0円の原見積と2015年の高断熱仕様を再確認。従来の一律80万円を2026年に外す補正が2025→26年の本体上昇を約79万円相殺していたため撤回。材料費は見積価格に含まれる価格転嫁として取り込み、公的指数を再加算しない。",
    "review_sources": [
      "https://www.ichijo.co.jp/topics/i-series2/",
      "https://roresan.com/blog/i-smart/",
      "https://www.ichijo-life.info/price/",
      "https://sfc.jp/information/ir/library/pdf/ar_j_2024_04.pdf"
    ]
  },
  "research2_snapshot": "research2_inputs.json",
  "research_snapshot": "research_inputs.json",
  "local_comparison_policy": {
    "method": "equal_weight_arithmetic_mean",
    "weights": {
      "bottom_up": 0.5,
      "price_difference": 0.5
    },
    "scope": "税込・土地代別の初期総額。仕様・設備・設計・検査・外構・諸費用を含み、将来積立は含めない。",
    "range": "両方式で条件を変えた試算の最小値から最大値。平均の信頼区間ではない。",
    "interpretation": "2つの試算を同じ重みで平均する比較条件。契約額の平均ではなく、両方式には共通の仕様・費用仮定がある。",
    "bottom_up_fields": "local_initial_total、local_initial_low、local_initial_high、initial_gapは積み上げ方式の内訳・検算用。記事の比較にはlocal_comparisonを使う。"
  },
  "historical_specification": "当年の主力商品・標準仕様と、その時期の創エネ設備の比較例。任意設備も含み、全棟の標準装備や2026年仕様固定ではない。"
}