StadiumStadion 1. FC UNION Berlin
| Current capacity of the stadium |
| Standing | 26 800 |
| Seats | 16 700 |
| Tribune | 10 000 |
| Seats for sponsors | 300 |
| Fans attended |
| 10. 7. 2025 | 1. FC UNION Berlin-IFK Real Värnamo | 4 140 |
| 10. 7. 2025 | 1. FC UNION Berlin-FK Budućnost Podgorica ™ | 4 083 |
| 9. 7. 2025 | 1. FC UNION Berlin-FC Montpellier A | 3 880 |
| 9. 7. 2025 | 1. FC UNION Berlin-IFK Real Värnamo | 3 979 |
| 9. 7. 2025 | 1. FC UNION Berlin-Pegau | 3 973 |
| 9. 7. 2025 | 1. FC UNION Berlin-FK Budućnost Podgorica ™ | 3 952 |
| 8. 7. 2025 | 1. FC UNION Berlin-Třeboutice Fk | 12 126 |
| 8. 7. 2025 | 1. FC UNION Berlin-US Catanzaro 1929 | 12 335 |
| 8. 7. 2025 | 1. FC UNION Berlin-Brighton FC | 12 246 |