{"building_coverage":{"built_area_m2":89.029473,"site_area_m2":320.0,"coverage_pct":27.8217103125,"limit_pct":60.0,"pass":true},"floor_area_ratio":{"gross_floor_m2":108.51104,"site_area_m2":320.0,"far_pct":33.9097,"limit_pct":200.0,"pass":true,"designated_limit_pct":200.0,"road_limit_pct":160.0,"road_width_m":4.0},"north_slope":{"kind":"north","max_height_mm":3212,"allowed_height_mm":16391,"pass":true,"margin_mm":13271},"road_slope":{"kind":"road","max_height_mm":3212,"allowed_height_mm":13747,"pass":true,"margin_mm":10627},"daylight":{"required_ratio":0.14285714285714285,"actual_ratio":0.3699007518555119,"window_area_m2":32.932069,"floor_area_m2":89.029473,"pass":true},"ventilation":{"required_ratio":0.05,"actual_ratio":0.08735101586297171,"mechanical_units":0,"pass":true},"overall_pass":true,"messages":["容積率 補足: 前面道路幅員が未登録のため指定 200% で判定中。仮に 4.0m とすると 160% に低減 (法52条2項) — set_site_context で実幅員を登録してください。"],"high_district":{"district":"指定なし","max_height_mm":3212,"allowed_height_mm":9223372036854775807,"pass":true,"margin_mm":9223372036854775807,"message":"高度地区 指定なし → 適用外"},"fire_district":{"district":"指定なし","gross_floor_m2":188.50421300000002,"stories":2,"required_grade":"規制なし","pass":true,"message":"防火 / 準防火地域 指定なし → 構造制限なし"},"energy_ua":{"climate_zone":6,"ua_w_m2k":0.3217289180715314,"standard_w_m2k":0.87,"envelope_area_m2":502.703086,"wall_area_m2":184.240231,"window_area_m2":32.932069,"roof_area_m2":97.02657299999998,"floor_area_m2":188.50421300000002,"pass":true,"message":"省エネ UA 値 OK (地域区分 6): UA=0.322 ≤ 基準 0.87 W/m²K"},"sickhouse":{"habitable_floor_m2":188.50421300000002,"habitable_volume_m3":452.4101112,"required_airflow_m3h":226.2050556,"estimated_airflow_m3h":164.660345,"air_change_per_hour":0.3639625660957155,"pass":true,"message":"シックハウス OK (設計前提): BIM 内に 24h 機械換気 未モデル。 建基法 28 条の 2 で 0.5 回/h 機械換気が法定 — 実工事で必ず設置設計してください (居室 188.5 m²、 必要 226 m³/h)"},"neighbor_slope":{"kind":"neighbor","max_height_mm":3212,"allowed_height_mm":20625,"pass":true,"margin_mm":17413},"shadow":{"regulated":false,"measurement_height_m":4.0,"max_shadow_5m_h":0.0,"limit_5m_h":5.0,"max_shadow_10m_h":0.0,"limit_10m_h":3.0,"pass":true,"message":"日影規制: 対象外 (用途地域・規模が規制要件未満)"},"site_eligibility":{"zoning":"第一種中高層住居専用地域","use_allowed":true,"use_message":"用途制限: 住宅は「第一種中高層住居専用地域」で建築可能","road_width_m":4.0,"frontage_m":20.25478734167333,"road_access_ok":true,"road_message":"接道義務 OK: 幅員 4.0m の道路に 約20.3m 接道 (法 43 条)","lot_area_m2":320.0,"min_lot_area_m2":null,"min_lot_ok":true,"pass":true,"message":"用途制限: 住宅は「第一種中高層住居専用地域」で建築可能 / 接道義務 OK: 幅員 4.0m の道路に 約20.3m 接道 (法 43 条)"}}