{"building_coverage":{"built_area_m2":104.9812,"site_area_m2":375.6,"coverage_pct":27.950266240681575,"limit_pct":60.0,"pass":true},"floor_area_ratio":{"gross_floor_m2":128.13081,"site_area_m2":375.6,"far_pct":34.11363418530351,"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":15931,"pass":true,"margin_mm":12811},"road_slope":{"kind":"road","max_height_mm":3730,"allowed_height_mm":15612,"pass":true,"margin_mm":12492},"daylight":{"required_ratio":0.14285714285714285,"actual_ratio":0.37806231972962784,"window_area_m2":39.689436,"floor_area_m2":104.98119999999999,"pass":true},"ventilation":{"required_ratio":0.05,"actual_ratio":0.08937978734199382,"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":222.02691,"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":0.3215110434075285,"standard_w_m2k":0.87,"envelope_area_m2":572.0911759999999,"wall_area_m2":181.64311399999997,"window_area_m2":39.689436,"roof_area_m2":128.731716,"floor_area_m2":222.02691,"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":222.02691,"habitable_volume_m3":532.8645839999999,"required_airflow_m3h":266.43229199999996,"estimated_airflow_m3h":198.44718,"air_change_per_hour":0.37241578059164093,"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 222.0 m²、 必要 266 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":19.380402472601027,"road_access_ok":true,"road_message":"接道義務 OK: 幅員 4.0m の道路に 約19.4m 接道 (法 43 条)","lot_area_m2":375.6,"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19.4m 接道 (法 43 条)"}}