{"estimate":{"design_jpy":36377600,"direct_jpy":406000000,"disclaimer":"概算 (実施設計・相見積で変動)。確定額ではありません。","floors":3,"futai_jpy":36377600,"grand_total_jpy":607498320,"gross_m2":1320.0,"high_performance":false,"honbun_jpy":454720000,"honbun_per_m2_jpy":344485,"honbun_per_tsubo_jpy":1138793,"kakunin_jpy":2060000,"lines":[{"amount":23760000,"label":"仮設工事","unit":"¥18,000/㎡"},{"amount":39600000,"label":"基礎・地業 (寒冷地べた基礎)","unit":"¥30,000/㎡"},{"amount":81840000,"label":"木躯体 (籾殻SIPs+杉CLT)","unit":"¥62,000/㎡"},{"amount":29040000,"label":"屋根・防水 (ガルバ立平)","unit":"¥22,000/㎡"},{"amount":36960000,"label":"外装 (杉板張り)","unit":"¥28,000/㎡"},{"amount":63360000,"label":"内装・造作 (床オーク他)","unit":"¥48,000/㎡"},{"amount":50160000,"label":"建具・高性能サッシ (Low-E)","unit":"¥38,000/㎡"},{"amount":23760000,"label":"電気設備","unit":"¥18,000/㎡"},{"amount":26400000,"label":"給排水・衛生","unit":"¥20,000/㎡"},{"amount":21120000,"label":"空調・換気 (第一種熱交換)","unit":"¥16,000/㎡"},{"amount":10000000,"label":"太陽光発電 40kW","unit":"¥250,000/kW"}],"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":22736000,"pv_kw":40.0,"quantities":{"concrete_m3":0.0,"glass_area_m2":486.19999999999993,"opening_count":40,"roof_area_m2":770.0,"wall_area_m2":1581.3000000000004,"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":48720000,"site_overhead_rate":0.12,"subtotal_jpy":552271200,"tax_jpy":55227120},"slug":"famous-hamada-yoshima","stored_construction_jpy":160000000,"title":"Project 11 — 旧与島中学校 (瀬戸大橋の島・橋上の灯台 retreat)"}