{"building_coverage":{"built_area_m2":111.987276,"site_area_m2":448.0,"coverage_pct":24.997159821428568,"limit_pct":50.0,"pass":true},"floor_area_ratio":{"gross_floor_m2":92.23719,"site_area_m2":448.0,"far_pct":20.588658482142858,"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":4020,"allowed_height_mm":4354,"pass":true,"margin_mm":4234},"road_slope":{"kind":"road","max_height_mm":4020,"allowed_height_mm":19482,"pass":true,"margin_mm":16362},"daylight":{"required_ratio":0.14285714285714285,"actual_ratio":0.5013923776298909,"window_area_m2":46.247023999999996,"floor_area_m2":92.23719,"pass":true},"ventilation":{"required_ratio":0.05,"actual_ratio":0.25069618881494543,"mechanical_units":7,"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":4020,"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":92.23719,"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":1,"ua_w_m2k":0.343046490548624,"standard_w_m2k":0.46,"envelope_area_m2":489.22718,"wall_area_m2":225.14367599999997,"window_area_m2":46.247023999999996,"roof_area_m2":125.59929,"floor_area_m2":92.23719,"pass":true,"message":"省エネ UA 値 OK (地域区分 1): UA=0.343 ≤ 基準 0.46 W/m²K"},"sickhouse":{"habitable_floor_m2":92.23719,"habitable_volume_m3":221.36925599999998,"required_airflow_m3h":110.68462799999999,"estimated_airflow_m3h":756.23512,"air_change_per_hour":3.4161704911724513,"pass":true,"message":"シックハウス OK: 換気回数 3.42 回/h ≥ 0.5 回/h (居室 92.2 m² / 自然 231 + 機械 525 m³/h、 機械換気 7 台)"},"neighbor_slope":{"kind":"neighbor","max_height_mm":4020,"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":16.73320053068151,"road_access_ok":true,"road_message":"接道義務 OK: 幅員 4.0m の道路に 約16.7m 接道 (法 43 条)","lot_area_m2":448.0,"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16.7m 接道 (法 43 条)"}}