Prince William and Kate, the Princess of Wales, along with their three children Prince George, Prince Louis and Princess Charlotte, are spending the summer preparing for a move.

The new house marks a new era for the family,” a royal source said. “The decision to move into this new home is a significant one that signals independence, though it is not entirely surprising.”

Kate Middleton and Prince William's new home will give them a chance for a new start after a 'brutal' year and a series of challenges, PEOPLE understands