{"building_coverage":{"built_area_m2":52.9416,"site_area_m2":180.0,"coverage_pct":29.412,"limit_pct":60.0,"pass":true},"floor_area_ratio":{"gross_floor_m2":99.7056,"site_area_m2":180.0,"far_pct":55.391999999999996,"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":6112,"allowed_height_mm":15287,"pass":true,"margin_mm":9267},"road_slope":{"kind":"road","max_height_mm":6112,"allowed_height_mm":9740,"pass":true,"margin_mm":3720},"daylight":{"required_ratio":0.14285714285714285,"actual_ratio":0.4677685907311124,"window_area_m2":46.639148,"floor_area_m2":99.7056,"pass":true},"ventilation":{"required_ratio":0.05,"actual_ratio":0.15921101716670216,"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":6112,"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":146.4696,"stories":3,"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":0.3560075544165925,"standard_w_m2k":0.87,"envelope_area_m2":514.5811,"wall_area_m2":256.396352,"window_area_m2":46.639148,"roof_area_m2":65.076,"floor_area_m2":146.4696,"pass":true,"message":"省エネ UA 値 OK (地域区分 6): UA=0.356 ≤ 基準 0.87 W/m²K"},"sickhouse":{"habitable_floor_m2":146.4696,"habitable_volume_m3":351.52704,"required_airflow_m3h":175.76352,"estimated_airflow_m3h":233.19574,"air_change_per_hour":0.6633792381945923,"pass":true,"message":"シックハウス OK: 換気回数 0.66 回/h ≥ 0.5 回/h (居室 146.5 m² / 自然 233 + 機械 0 m³/h、 機械換気 0 台)"},"neighbor_slope":{"kind":"neighbor","max_height_mm":6112,"allowed_height_mm":20625,"pass":true,"margin_mm":14513},"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":17.32050807568877,"road_access_ok":true,"road_message":"接道義務 OK: 幅員 4.0m の道路に 約17.3m 接道 (法 43 条)","lot_area_m2":180.0,"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17.3m 接道 (法 43 条)"}}