{"building_coverage":{"built_area_m2":98.324668,"site_area_m2":340.0,"coverage_pct":28.91902,"limit_pct":60.0,"pass":true},"floor_area_ratio":{"gross_floor_m2":84.985368,"site_area_m2":340.0,"far_pct":24.995696470588232,"limit_pct":300.0,"pass":true,"designated_limit_pct":300.0,"road_limit_pct":160.0,"road_width_m":4.0},"north_slope":{"kind":"north","max_height_mm":3800,"allowed_height_mm":9223372036854775807,"pass":true,"margin_mm":9223372036854775807},"road_slope":{"kind":"road","max_height_mm":3800,"allowed_height_mm":17327,"pass":true,"margin_mm":13527},"daylight":{"required_ratio":0.14285714285714285,"actual_ratio":0.46507128144694276,"window_area_m2":39.524254,"floor_area_m2":84.985368,"pass":true},"ventilation":{"required_ratio":0.05,"actual_ratio":0.23253564072347138,"mechanical_units":6,"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 300% 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":3800,"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":84.985368,"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":6,"ua_w_m2k":0.31907043590785633,"standard_w_m2k":0.87,"envelope_area_m2":486.58508199999994,"wall_area_m2":198.20124599999997,"window_area_m2":39.524254,"roof_area_m2":163.874214,"floor_area_m2":84.985368,"pass":true,"message":"省エネ UA 値 OK (地域区分 6): UA=0.319 ≤ 基準 0.87 W/m²K"},"sickhouse":{"habitable_floor_m2":84.985368,"habitable_volume_m3":203.96488319999997,"required_airflow_m3h":101.98244159999999,"estimated_airflow_m3h":647.62127,"air_change_per_hour":3.175160644516281,"pass":true,"message":"シックハウス OK: 換気回数 3.18 回/h ≥ 0.5 回/h (居室 85.0 m² / 自然 198 + 機械 450 m³/h、 機械換気 6 台)"},"neighbor_slope":{"kind":"neighbor","max_height_mm":3800,"allowed_height_mm":20625,"pass":true,"margin_mm":16825},"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":"第一種住居地域","use_allowed":true,"use_message":"用途制限: 住宅は「第一種住居地域」で建築可能","road_width_m":4.0,"frontage_m":14.577379737113251,"road_access_ok":true,"road_message":"接道義務 OK: 幅員 4.0m の道路に 約14.6m 接道 (法 43 条)","lot_area_m2":340.0,"min_lot_area_m2":null,"min_lot_ok":true,"pass":true,"message":"用途制限: 住宅は「第一種住居地域」で建築可能 / 接道義務 OK: 幅員 4.0m の道路に 約14.6m 接道 (法 43 条)"}}