Searcys Champagne School will be located in what was formerly a dining room.
The room will feature high ceilings and mounted displays of Champagne and sparkling wines.
The room will seat up to 12 delegates and is available for events and team-building exercises.
Two-hour masterclasses are planned for groups of six or more delegates The classes will include a selection of champagne with food pairings.
Other options include a pre-dinner Champagne tasting experience as well as a five-course dinner with matching English sparkling wines and champagnes.
Searcys are also planning a new kitchen bar overlooking an open kitchen. This can be used for chef demonstration events, as well as offering an all-day menu.
St Pancras Station originally opened in 1868.
Details: http://searcys.co.uk/