Prince William and Kate Middleton could take over Windsor Castle when Prince Charles becomes King, according to reports.
The Duke and Duchess of Cambridge are currently based in London in Kensington Palace while they also have Anmer Hall on the Sandringham estate in Norfolk, which was given to them by the Queen.
When Charles becomes King, he intends to move into Buckingham Palace and it will effectively be his "flat above the shop", writes The Daily Mail.