At Sandringham House, paranormal events are notably concentrated around the Christmas season. The haunting activities typically begin on Christmas Eve, December 24, when various disturbances are reported. These phenomena reportedly continue for approximately six to seven weeks, often concluding around early February.
During this period, witnesses have described a range of experiences. Physical disturbances include footsteps heard in deserted corridors, doors opening and closing on their own, and lights switching on and off unexpectedly. Some have reported seeing Christmas cards moving or being scattered throughout the house.
Auditory experiences are also common, with heavy breathing noises noted in certain rooms, particularly on the second floor. Eerie sounds resembling wheezing or heavy breathing add to the unsettling atmosphere. Additionally, figures in old-fashioned clothing have been sighted walking through the corridors, and there are accounts of books flying off shelves in the library.