{"estimate":{"design_jpy":4784640,"direct_jpy":53400000,"disclaimer":"概算 (実施設計・相見積で変動)。確定額ではありません。","floors":1,"futai_jpy":4784640,"grand_total_jpy":79986148,"gross_m2":178.0,"high_performance":false,"honbun_jpy":59808000,"honbun_per_m2_jpy":336000,"honbun_per_tsubo_jpy":1110744,"kakunin_jpy":347000,"lines":[{"amount":3204000,"label":"仮設工事","unit":"¥18,000/㎡"},{"amount":5340000,"label":"基礎・地業 (寒冷地べた基礎)","unit":"¥30,000/㎡"},{"amount":11036000,"label":"木躯体 (籾殻SIPs+杉CLT)","unit":"¥62,000/㎡"},{"amount":3916000,"label":"屋根・防水 (ガルバ立平)","unit":"¥22,000/㎡"},{"amount":4984000,"label":"外装 (杉板張り)","unit":"¥28,000/㎡"},{"amount":8544000,"label":"内装・造作 (床オーク他)","unit":"¥48,000/㎡"},{"amount":6764000,"label":"建具・高性能サッシ (Low-E)","unit":"¥38,000/㎡"},{"amount":3204000,"label":"電気設備","unit":"¥18,000/㎡"},{"amount":3560000,"label":"給排水・衛生","unit":"¥20,000/㎡"},{"amount":2848000,"label":"空調・換気 (第一種熱交換)","unit":"¥16,000/㎡"}],"method":"部位別概算 (elemental) — 本体は延床ベース+モデル特徴量補正。総額は本体に付帯/設計/確認/税を積上 (詳細見積と同一定義)","misc_jpy":2990400,"pv_kw":0.0,"quantities":{"concrete_m3":0.0,"glass_area_m2":0.0,"opening_count":10,"roof_area_m2":258.40799999999996,"wall_area_m2":148.07999999999998,"wood_m3":0.0},"rate_source":"高性能木造の部位別概算レンジ (2026 想定)。実施設計・相見積で確定。確定額ではありません。","rate_year":2026,"site_overhead_jpy":6408000,"site_overhead_rate":0.12,"subtotal_jpy":72714680,"tax_jpy":7271468},"slug":"famous-katsura-koshoin","stored_construction_jpy":280000000,"title":"桂離宮 古書院 — 1624-45"}