{"building_coverage":{"built_area_m2":68.7633,"site_area_m2":243.2,"coverage_pct":28.274383223684215,"limit_pct":50.0,"pass":true},"floor_area_ratio":{"gross_floor_m2":60.8125,"site_area_m2":243.2,"far_pct":25.005139802631582,"limit_pct":100.0,"pass":true,"designated_limit_pct":100.0,"road_limit_pct":160.0,"road_width_m":4.0},"north_slope":{"kind":"north","max_height_mm":3730,"allowed_height_mm":4594,"pass":true,"margin_mm":4474},"road_slope":{"kind":"road","max_height_mm":3730,"allowed_height_mm":12562,"pass":true,"margin_mm":9442},"daylight":{"required_ratio":0.14285714285714285,"actual_ratio":0.5373693566289824,"window_area_m2":32.678774,"floor_area_m2":60.8125,"pass":true},"ventilation":{"required_ratio":0.05,"actual_ratio":0.2686846783144912,"mechanical_units":6,"pass":true},"overall_pass":true,"messages":["全項目 OK","「美しいものは長持ちする。」"],"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":60.8125,"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":2,"ua_w_m2k":0.34829602288613837,"standard_w_m2k":0.46,"envelope_area_m2":331.36215,"wall_area_m2":155.550626,"window_area_m2":32.678774,"roof_area_m2":82.32025,"floor_area_m2":60.8125,"pass":true,"message":"省エネ UA 値 OK (地域区分 2): UA=0.348 ≤ 基準 0.46 W/m²K"},"sickhouse":{"habitable_floor_m2":60.8125,"habitable_volume_m3":145.95,"required_airflow_m3h":72.975,"estimated_airflow_m3h":613.39387,"air_change_per_hour":4.202767180541281,"pass":true,"message":"シックハウス OK: 換気回数 4.20 回/h ≥ 0.5 回/h (居室 60.8 m² / 自然 163 + 機械 450 m³/h、 機械換気 6 台)"},"neighbor_slope":{"kind":"neighbor","max_height_mm":3730,"allowed_height_mm":9223372036854775807,"pass":true,"margin_mm":9223372036854775807},"shadow":{"regulated":false,"measurement_height_m":1.5,"max_shadow_5m_h":0.0,"limit_5m_h":4.0,"max_shadow_10m_h":0.0,"limit_10m_h":2.5,"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":"第一種低層住居専用地域","use_allowed":true,"use_message":"用途制限: 住宅は「第一種低層住居専用地域」で建築可能","road_width_m":4.0,"frontage_m":17.5,"road_access_ok":true,"road_message":"接道義務 OK: 幅員 4.0m の道路に 約17.5m 接道 (法 43 条)","lot_area_m2":243.2,"min_lot_area_m2":null,"min_lot_ok":true,"pass":true,"message":"用途制限: 住宅は「第一種低層住居専用地域」で建築可能 / 接道義務 OK: 幅員 4.0m の道路に 約17.5m 接道 (法 43 条)"}}