{"building_coverage":{"built_area_m2":38.85,"site_area_m2":154.1,"coverage_pct":25.21090201168073,"limit_pct":60.0,"pass":true},"floor_area_ratio":{"gross_floor_m2":33.81504,"site_area_m2":154.1,"far_pct":21.943569110966905,"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":8438,"pass":true,"margin_mm":8318},"road_slope":{"kind":"road","max_height_mm":3212,"allowed_height_mm":10437,"pass":true,"margin_mm":7317},"daylight":{"required_ratio":0.14285714285714285,"actual_ratio":0.8667233278446514,"window_area_m2":29.308284000000004,"floor_area_m2":33.81504,"pass":true},"ventilation":{"required_ratio":0.05,"actual_ratio":0.4333616639223257,"mechanical_units":4,"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":33.81504,"stories":1,"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":0.38942019106264053,"standard_w_m2k":0.87,"envelope_area_m2":213.42948,"wall_area_m2":99.99111599999999,"window_area_m2":29.308284000000004,"roof_area_m2":50.315039999999996,"floor_area_m2":33.81504,"pass":true,"message":"省エネ UA 値 OK (地域区分 6): UA=0.389 ≤ 基準 0.87 W/m²K"},"sickhouse":{"habitable_floor_m2":33.81504,"habitable_volume_m3":81.156096,"required_airflow_m3h":40.578048,"estimated_airflow_m3h":446.54142,"air_change_per_hour":5.502253583021046,"pass":true,"message":"シックハウス OK: 換気回数 5.50 回/h ≥ 0.5 回/h (居室 33.8 m² / 自然 147 + 機械 300 m³/h、 機械換気 4 台)"},"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":13.9,"road_access_ok":true,"road_message":"接道義務 OK: 幅員 4.0m の道路に 約13.9m 接道 (法 43 条)","lot_area_m2":154.1,"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13.9m 接道 (法 43 条)"}}