| Name | m2 | |||||
|---|---|---|---|---|---|---|
| Union-Saal | 504 | 118 | 96 | 390 | 390 | 700 | 
| Hotelhalle | 282 | 0 | 0 | 0 | 0 | 0 | 
| Glas-Saal | 263 | 96 | 96 | 216 | 180 | 270 | 
| Weisser Saal | 250 | 72 | 72 | 198 | 190 | 270 | 
| Garten-Saal | 239 | 96 | 96 | 216 | 180 | 260 | 
| Restaurant | 186 | 0 | 0 | 0 | 200 | 0 | 
| Café | 146 | 0 | 0 | 0 | 110 | 0 | 
| Blaue Lounge | 132 | 62 | 66 | 80 | 90 | 180 | 
| Restaurant Unionskaklet | 128 | 0 | 0 | 0 | 82 | 0 | 
| Lounge Orchidee | 126 | 44 | 60 | 70 | 60 | 140 | 
| Silber Lounge | 118 | 56 | 56 | 64 | 70 | 120 | 
| Lounge Iris | 89 | 34 | 36 | 36 | 40 | 75 | 
| Grüne Lounge | 86 | 16 | 18 | 20 | 58 | 40 | 
| Rote Lounge | 84 | 34 | 36 | 36 | 36 | 75 | 
| Bankettsaal | 71 | 30 | 32 | 36 | 40 | 80 | 
| Lounge Rose | 70 | 20 | 24 | 20 | 40 | 40 | 
| West-Lounge | 50 | 24 | 0 | 36 | 30 | 48 | 
| Lounge Lotos | 36 | 0 | 0 | 0 | 12 | 0 | 
| Goldene Lounge | 26 | 0 | 0 | 0 | 12 | 0 |