It’s the estate where they spent their first Christmas as husband and wife.
So the Duke and Duchess of Cambridge would have been particularly touched by the Queen’s 30th birthday present for her grandson.
She decided to give Prince William and his wife one of the cottages at her beloved Sandringham.
The gift will be made available to the couple later in the year.
A source told the Mail on Sunday: "He (William) is a country boy and loves Norfolk, just like his father and his grandparents.
"It's a lovely, peaceful place and William adores it."
Sandringham has been the private home of four generations of British monarchs since 1862 – the Queen's grandfather King George V described it as "the place I love better than anywhere in the world".
It is located near King’s Lynn in Norfolk and has been owned by the Queen since her ascension in 1952.
At the centre of the 20,000-acre estate is the main house, an Edwardian mansion where the monarch and the Duke of Edinburgh stay every Christmas with the rest of the royal family.
Sandringham includes 150 properties and it is not known which has been gifted to the Duke and Duchess.
In the past, they have stayed at Wood Farm Cottage – a modest residence set in a secluded part of the estate.
It is often used as an informal weekend retreat by the royals; William and his brother regularly host shooting parties there while Harry would stay at the cottage with his ex Chelsy Davy.
Sarah Ferguson also spent time there following her divorce from Prince Andrew in 1996.
Alongside the cottage, William also received £10 million from his late mother’s estate as he celebrated his 30th last Thursday.
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It's a little princess!