{"building_coverage":{"built_area_m2":125.2125,"site_area_m2":500.0,"coverage_pct":25.0425,"limit_pct":50.0,"pass":true},"floor_area_ratio":{"gross_floor_m2":217.96991999999995,"site_area_m2":500.0,"far_pct":43.59398399999999,"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":6112,"allowed_height_mm":13156,"pass":true,"margin_mm":7136},"road_slope":{"kind":"road","max_height_mm":6112,"allowed_height_mm":15312,"pass":true,"margin_mm":9292},"daylight":{"required_ratio":0.14285714285714285,"actual_ratio":0.461876482773403,"window_area_m2":100.67518,"floor_area_m2":217.96991999999995,"pass":true},"ventilation":{"required_ratio":0.05,"actual_ratio":0.2309382413867015,"mechanical_units":11,"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":6112,"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":217.96991999999995,"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":0.3624040783936004,"standard_w_m2k":0.87,"envelope_area_m2":811.80198,"wall_area_m2":326.81191999999993,"window_area_m2":100.67518,"roof_area_m2":275.32991999999996,"floor_area_m2":108.98496,"pass":true,"message":"省エネ UA 値 OK (地域区分 6): UA=0.362 ≤ 基準 0.87 W/m²K"},"sickhouse":{"habitable_floor_m2":217.96991999999995,"habitable_volume_m3":523.1278079999998,"required_airflow_m3h":261.5639039999999,"estimated_airflow_m3h":1328.3759,"air_change_per_hour":2.539295139133572,"pass":true,"message":"シックハウス OK: 換気回数 2.54 回/h ≥ 0.5 回/h (居室 218.0 m² / 自然 503 + 機械 825 m³/h、 機械換気 11 台)"},"neighbor_slope":{"kind":"neighbor","max_height_mm":6112,"allowed_height_mm":9223372036854775807,"pass":true,"margin_mm":9223372036854775807},"shadow":{"regulated":true,"measurement_height_m":1.5,"max_shadow_5m_h":1.75,"limit_5m_h":4.0,"max_shadow_10m_h":0.5833333333333333,"limit_10m_h":2.5,"pass":true,"message":"日影規制 OK: 5m ライン 1.8h ≤ 4.0h / 10m ライン 0.6h ≤ 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":26.5,"road_access_ok":true,"road_message":"接道義務 OK: 幅員 4.0m の道路に 約26.5m 接道 (法 43 条)","lot_area_m2":500.0,"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26.5m 接道 (法 43 条)"}}