{"estimate":{"design_jpy":1612357,"direct_jpy":17995054,"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":1612357,"grand_total_jpy":27012560,"gross_m2":59.983515,"high_performance":false,"honbun_jpy":20154461,"honbun_per_m2_jpy":336000,"honbun_per_tsubo_jpy":1110744,"kakunin_jpy":169975,"lines":[{"amount":1079703,"label":"仮設工事","unit":"¥18,000/㎡"},{"amount":1799505,"label":"基礎・地業 (寒冷地べた基礎)","unit":"¥30,000/㎡"},{"amount":3718978,"label":"木躯体 (籾殻SIPs+杉CLT)","unit":"¥62,000/㎡"},{"amount":1319637,"label":"屋根・防水 (ガルバ立平)","unit":"¥22,000/㎡"},{"amount":1679538,"label":"外装 (杉板張り)","unit":"¥28,000/㎡"},{"amount":2879209,"label":"内装・造作 (床オーク他)","unit":"¥48,000/㎡"},{"amount":2279374,"label":"建具・高性能サッシ (Low-E)","unit":"¥38,000/㎡"},{"amount":1079703,"label":"電気設備","unit":"¥18,000/㎡"},{"amount":1199670,"label":"給排水・衛生","unit":"¥20,000/㎡"},{"amount":959736,"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":1007723,"pv_kw":0.0,"quantities":{"concrete_m3":0.0,"glass_area_m2":32.9088,"opening_count":16,"roof_area_m2":40.70901,"wall_area_m2":221.08140000000003,"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":2159407,"site_overhead_rate":0.12,"subtotal_jpy":24556873,"tax_jpy":2455687},"slug":"imp-bim-denenchofu","stored_construction_jpy":27012560,"title":"改善案: 大田区田園調布 — 二世帯 + ガレージ"}