Sunday Times, the couple have their sights set on uprooting their family from Kensington Palace to start a new life on the Queen's estate in Windsor, nearly an hour's drive further west, on the outskirts of London.
While Kensington Palace will remain the Cambridge's London home, and the site of their press office, Berkshire will be their permanent home.
The article claims Kate and William have chosen to pull their two eldest children, Prince George, eight, and Princess Charlotte, seven, out of their current school as part of the move.
George and Charlotte are currently enrolled at Thomas's Prep School in Battersea - but the family gearing up to move has sparked speculation about the next "ridiculously posh" school they could move to, in Windsor.
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