Directors (And Other Officers)
| Concept | 
                                    
                                        As at 2024-06-20  | 
                            
                                
                                    
                                        As at 2024-06-20  | 
                            
                                
                                    
                                        As at 2024-06-20  | 
                            
                                
                                    
                                        As at 2024-06-20  | 
                            
                                
                                    
                                        As at 2024-06-20  | 
                            
                                
                                    
                                        As at 2024-06-20  | 
                            
                                
                                    
                                        As at 2024-06-20  | 
                            
                                
                                    
                                        As at 2024-06-20  | 
                            
                                
                                    
                                        As at 2024-06-20  | 
                            
                                
                                    
                                        As at 2024-06-20  | 
                            
                                
                                    
                                        As at 2024-06-20  | 
                            
                                
                                    
                                        As at 2024-06-20  | 
                            
                        
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Directors (and other officers) | ||||||||||||
| Information about directors (and corporate auditors) | ||||||||||||
| Official title or position | — | 
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                代表取締役社長
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                常勤監査役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                監査役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役経理部部長
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役営業部部長
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役建築技術部部長
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                監査役
                                                
                                             
                                        
                                     | 
                                
                            
| Name | — | 
                                        
                                             
                                                甚野 章吾
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                池田 雄一
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                野嶽 直樹
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                清水 智
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                神山 周市
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                曽我部 康
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                岩永 武也
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                平山 純太
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                中 真人
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                竹田 純
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                竹川 博之
                                                
                                             
                                        
                                     | 
                                
                            
| Date of birth | — | 
                                        
                                             
                                                1968-07-19
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1967-12-20
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1960-01-17
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1971-12-02
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1969-03-06
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1956-04-21
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1981-01-06
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1981-05-30
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1975-08-29
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1977-03-28
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1955-11-21
                                                
                                             
                                        
                                     | 
                                
                            
| Career summary | — | |||||||||||
| Term of office | — | 
                                        
                                             
                                                (注)3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)4
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)4
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)4
                                                
                                             
                                        
                                     | 
                                
                            
| Number of shares held (Ordinary shares) | 
                                        
                                             
                                                397,933
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                353,753
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                4,440
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                35,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                4,440
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     |