Prince William and Princess Kate chose their home at Adelaide Cottage in Windsor precisely because it was a "normal" house by royal standards. It's even been reported several times that they have no interest in living in nearby Windsor Castle itself, which would give them access to a grander lifestyle.
But now we're hearing rumors that the Prince and Princess of Wales were kind of hoping to move into Royal Lodge, Prince Andrew and Sarah Ferguson's current home, which is quite a bit larger than theirs (ahem: with 30 bedrooms to their four at present). This, however, isn't looking likely, as Andrew reportedly refuses to vacate the house, per the Daily Beast.
