{"estimate":{"design_jpy":2825088,"direct_jpy":31530000,"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":2825088,"grand_total_jpy":47263817,"gross_m2":105.1,"high_performance":false,"honbun_jpy":35313600,"honbun_per_m2_jpy":336000,"honbun_per_tsubo_jpy":1110744,"kakunin_jpy":237650,"lines":[{"amount":1891800,"label":"仮設工事","unit":"¥18,000/㎡"},{"amount":3153000,"label":"基礎・地業 (寒冷地べた基礎)","unit":"¥30,000/㎡"},{"amount":6516200,"label":"木躯体 (籾殻SIPs+杉CLT)","unit":"¥62,000/㎡"},{"amount":2312200,"label":"屋根・防水 (ガルバ立平)","unit":"¥22,000/㎡"},{"amount":2942800,"label":"外装 (杉板張り)","unit":"¥28,000/㎡"},{"amount":5044800,"label":"内装・造作 (床オーク他)","unit":"¥48,000/㎡"},{"amount":3993800,"label":"建具・高性能サッシ (Low-E)","unit":"¥38,000/㎡"},{"amount":1891800,"label":"電気設備","unit":"¥18,000/㎡"},{"amount":2102000,"label":"給排水・衛生","unit":"¥20,000/㎡"},{"amount":1681600,"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":1765680,"pv_kw":0.0,"quantities":{"concrete_m3":0.0,"glass_area_m2":36.041788,"opening_count":13,"roof_area_m2":131.4975,"wall_area_m2":258.941,"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":3783600,"site_overhead_rate":0.12,"subtotal_jpy":42967106,"tax_jpy":4296711},"slug":"u-house-la3ch7of","stored_construction_jpy":0,"title":"北海道・平屋の別荘"}