This architectural gem was built at the beginning of the 20th century and newly renovated in 1993. The Tonhalle St.Gallen can be rented for concerts, conferences and banquets. Catering is available from our own in-house Concerto restaurant.
| Room arrangements | Concert | U-Shape | Seminar | Banquet | Length x Width | Area |
| Grosser Saal (inkl. Galerie) | 891 | - | - | 280* | - | 750 m² |
| Grosser Saal (vorderer Teil) | 558 | - | 180* | 250* | - | 550 m² |
| Kleiner Saal (inkl. Balkon) | 253 | - | - | - | - | 180 m² |
| Schoek Foyer | 50 | - | - | 60 | - | 90 m² |
| Intermezzo (EG) | 100 | - | 100 | 120 | - | 160 m² |
| Foyer EG | 180 | - | 180 | 200 | - | 370 m² |
| Foyer (UG) | 140 | - | 120 | 90 | - | 210 m² |
| *Saalgeschoss | - | - | - | - | - | - |