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 |
| 24. 8. 2025 | 1. FC UNION Berlin-FC ŠKP Devín | 4 041 |
| 24. 8. 2025 | 1. FC UNION Berlin-Seňa | 4 084 |
| 24. 8. 2025 | 1. FC UNION Berlin-Seňa | 4 127 |
| 24. 8. 2025 | 1. FC UNION Berlin-Newell's Old Boys | 4 097 |
| 24. 8. 2025 | 1. FC UNION Berlin-Holloselund | 14 901 |
| 23. 8. 2025 | 1. FC UNION Berlin-FC Montpellier A | 3 901 |
| 23. 8. 2025 | 1. FC UNION Berlin-Kultowiec | 3 944 |
| 23. 8. 2025 | 1. FC UNION Berlin-Fotbal Club Wrexham A.F.C | 3 940 |
| 22. 8. 2025 | 1. FC UNION Berlin-Hellas Verona | 12 433 |