{"building_coverage":{"built_area_m2":102.052187,"site_area_m2":374.0,"coverage_pct":27.28668101604278,"limit_pct":60.0,"pass":true},"floor_area_ratio":{"gross_floor_m2":124.731492,"site_area_m2":374.0,"far_pct":33.35066631016043,"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":3730,"allowed_height_mm":17488,"pass":true,"margin_mm":14368},"road_slope":{"kind":"road","max_height_mm":3730,"allowed_height_mm":12487,"pass":true,"margin_mm":9367},"daylight":{"required_ratio":0.14285714285714285,"actual_ratio":0.3869883454824931,"window_area_m2":39.49300699999999,"floor_area_m2":102.052187,"pass":true},"ventilation":{"required_ratio":0.05,"actual_ratio":0.09049034927343934,"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":3730,"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":218.216679,"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":2,"ua_w_m2k":0.3179884224438482,"standard_w_m2k":0.46,"envelope_area_m2":595.72244,"wall_area_m2":202.22574300000002,"window_area_m2":39.49300699999999,"roof_area_m2":135.787011,"floor_area_m2":218.216679,"pass":true,"message":"省エネ UA 値 OK (地域区分 2): UA=0.318 ≤ 基準 0.46 W/m²K"},"sickhouse":{"habitable_floor_m2":218.216679,"habitable_volume_m3":523.7200296,"required_airflow_m3h":261.8600148,"estimated_airflow_m3h":197.46503499999994,"air_change_per_hour":0.37704312197266393,"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 218.2 m²、 必要 262 m³/h)"},"neighbor_slope":{"kind":"neighbor","max_height_mm":3730,"allowed_height_mm":20625,"pass":true,"margin_mm":16895},"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":24.966644414765337,"road_access_ok":true,"road_message":"接道義務 OK: 幅員 4.0m の道路に 約25.0m 接道 (法 43 条)","lot_area_m2":374.0,"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25.0m 接道 (法 43 条)"}}