With Christmas having come and gone, attention shifts to parties for the new year. The British royal family have their Christmas traditions but for New Year's Eve and New Year's Day, the couples often make their own plans.

For the Duchess of Cambridge Kate Middleton and Prince William, the New Year's celebrations are usually spent at Middleton's parents' £5 million home in Berkshire. The lone exception was in 2012 when Prince William had Search and Rescue duty after a 41-year-old man was swept into the Irish Sea, and while Middleton was in the early stages of pregnancy with her firstborn, George.

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Middleton and Prince William are said to enjoy New Year's celebrations at the cozy country house. New Year's in Berkshire often includes Middleton's younger sister, Pippa Middleton Matthews, who once threw an extravagant party in the back garden, hiring an upmarket teepee.

What's on tap for 2018-19? Royal commentator Richard Fitzwilliams said the Cambridges are once again likely to stick to the routine and ring in the New Year at the Middleton family home.

Celebrating New Year's with Middleton's family seems to make sense since it was announced this week that the couple would no longer be alternating Christmas celebrations.

The Cambridges have three children: Prince George, 5, Princess Charlotte, 3, and Prince Louis, who is 8 months old.

Meanwhile, Prince William's father, Prince Charles, will reportedly spend New Year's Eve with Camilla, Duchess of Cornwall, in the Scottish Highlands.

"He owns Birkhall on the Balmoral estate in Aberdeenshire, which is where they spent their honeymoon," Fitzwilliams said, according to British tabloid the Sun.

An International Business Times staff writer contributed to this report.

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge during a visit to Evelina London Children's Hospital in London. Chris Jackson/Getty Images