Prince William and Kate Middleton's housekeeper has sensationally 'quit her job'.

The woman who has been Prince William and the Duchess of Cambridge’s housekeeper for less than two years has sensationally quit her job, according to British media.

The Sun reports 35-year-old Sadie Rice has packed in her bags after she was asked to move with the pair from Norfolk’s Anmer Hall, where the young royals live, to Kensington Palace.

The couple and their adorable children - three-year-old Prince George and Princess Charlotte, 2 - are expected to relocate to the London Palace to become 'full-time royals' when Prince William quits his air ambulance job later this year.

A source at the nearby Sandringham Estate, the country retreat of the Queen, said the 35-year-old found the job was getting "too demanding".

Sadie was reportedly paid AU$60,000 a year for the role, and she was responsible for the cleaning, laundry, shopping and cooking for the family.

"Sadie's a hard worker but the job's demands got too much, even for her," the source told The Sun.

"They wanted her to spend more time at Kensington Palace and her work was increasing all the time.

"She wasn't having a normal life outside work. Sadie's serving her notice and it seems nothing will change her mind. It's their loss."

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It's said Prince George and Princess Charlotte were big fans of Sadie and got along with her well.

"They will regret losing Sadie as the right people aren't easy to find," the reported 'insider' said.

Sadie worked for Norway's Prince Haakon and his wife in Oslo for five years before she began working for William and Kate.

She also worked as a maid at Buckingham Palace and was "well liked" by the Queen.