The Royal Naval College, Greenwich, was a Royal Navy training establishment between 1873 and 1998, providing courses for naval officers. It was the home of the Royal Navy's staff college, which provided advanced training for officers.
The actual Grand Hotel is an expensive hotel located at Piccadilly Circus but the south side of Piccadilly Square is dominated by the Lillywhite's building, which is much larger and more ornate than the hotel depicted in the film.
ALTERNATIVE LOCATION NAME
Old Royal Naval College