{"building_coverage":{"built_area_m2":49.492758,"site_area_m2":198.0,"coverage_pct":24.996342424242428,"limit_pct":50.0,"pass":true},"floor_area_ratio":{"gross_floor_m2":134.62951999999999,"site_area_m2":198.0,"far_pct":67.99470707070707,"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":8920,"allowed_height_mm":9666,"pass":true,"margin_mm":746},"road_slope":{"kind":"road","max_height_mm":8920,"allowed_height_mm":10892,"pass":true,"margin_mm":1972},"daylight":{"required_ratio":0.14285714285714285,"actual_ratio":0.6818270242662976,"window_area_m2":91.79404499999998,"floor_area_m2":134.62951999999999,"pass":true},"ventilation":{"required_ratio":0.05,"actual_ratio":0.24927468309945625,"mechanical_units":0,"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":8920,"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":184.12227800000002,"stories":4,"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":1,"ua_w_m2k":0.3762288120892173,"standard_w_m2k":0.46,"envelope_area_m2":662.958651,"wall_area_m2":243.71275500000002,"window_area_m2":91.79404499999998,"roof_area_m2":229.493865,"floor_area_m2":97.95798599999999,"pass":true,"message":"省エネ UA 値 OK (地域区分 1): UA=0.376 ≤ 基準 0.46 W/m²K"},"sickhouse":{"habitable_floor_m2":184.12227800000002,"habitable_volume_m3":441.89346720000003,"required_airflow_m3h":220.94673360000002,"estimated_airflow_m3h":458.9702249999999,"air_change_per_hour":1.038644512914401,"pass":true,"message":"シックハウス OK: 換気回数 1.04 回/h ≥ 0.5 回/h (居室 184.1 m² / 自然 459 + 機械 0 m³/h、 機械換気 0 台)"},"neighbor_slope":{"kind":"neighbor","max_height_mm":8920,"allowed_height_mm":9223372036854775807,"pass":true,"margin_mm":9223372036854775807},"shadow":{"regulated":true,"measurement_height_m":1.5,"max_shadow_5m_h":3.25,"limit_5m_h":4.0,"max_shadow_10m_h":1.3333333333333333,"limit_10m_h":2.5,"pass":true,"message":"日影規制 OK: 5m ライン 3.2h ≤ 4.0h / 10m ライン 1.3h ≤ 2.5h (冬至・測定面 1.5m)"},"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":15.93255013631383,"road_access_ok":true,"road_message":"接道義務 OK: 幅員 4.0m の道路に 約15.9m 接道 (法 43 条)","lot_area_m2":198.0,"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15.9m 接道 (法 43 条)"}}