{"estimate":{"design_jpy":1175628,"direct_jpy":13120848,"disclaimer":"概算 (実施設計・相見積で変動)。確定額ではありません。","floors":2,"futai_jpy":1175628,"grand_total_jpy":19713920,"gross_m2":40.248000000000005,"high_performance":true,"honbun_jpy":14695350,"honbun_per_m2_jpy":365120,"honbun_per_tsubo_jpy":1207008,"kakunin_jpy":140372,"lines":[{"amount":724464,"label":"仮設工事","unit":"¥18,000/㎡"},{"amount":1207440,"label":"基礎・地業 (寒冷地べた基礎)","unit":"¥30,000/㎡"},{"amount":3541824,"label":"木躯体 (籾殻SIPs+杉CLT)","unit":"¥88,000/㎡"},{"amount":885456,"label":"屋根・防水 (ガルバ立平)","unit":"¥22,000/㎡"},{"amount":1126944,"label":"外装 (杉板張り)","unit":"¥28,000/㎡"},{"amount":1931904,"label":"内装・造作 (床オーク他)","unit":"¥48,000/㎡"},{"amount":1529424,"label":"建具・高性能サッシ (Low-E)","unit":"¥38,000/㎡"},{"amount":724464,"label":"電気設備","unit":"¥18,000/㎡"},{"amount":804960,"label":"給排水・衛生","unit":"¥20,000/㎡"},{"amount":643968,"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":734767,"pv_kw":0.0,"quantities":{"concrete_m3":0.0,"glass_area_m2":20.8,"opening_count":11,"roof_area_m2":41.088,"wall_area_m2":157.59359999999998,"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":1574502,"site_overhead_rate":0.12,"subtotal_jpy":17921745,"tax_jpy":1792175},"slug":"imp-kata-fukuoka-nishijin","stored_construction_jpy":19713920,"title":"改善案: 福岡市早良区西新 — 都市狭小 3 階"}