According to The Express the Duke and Duchess of Cambridge are preparing to relocate to Apartment 1A in a matter of days, after waiting two years for renovations to be completed.
The move should be completed in time for Prince George's christening, which is taking place on 23 October in the Chapel Royal at St James's Palace.
As a former history of art student, Kate is said to have had a significant influence on the design and interior of the 20-room apartment, which belonged to Princess Margaret until her death in 2002.
The 31-year-old Duchess is also said to have taken inspiration from Princess Mary of Denmark when she visited Amalienborg Palace in Copenhagen.
"Mary showed them around their apartment at the Amelienborg Palace and they loved the way they had combined their collection of modern art with antique furniture," a palace insider told the Sunday Express. "Kate was truly inspired and wants to use some similar ideas in some of the rooms at Kensington Palace."
William and Kate's other property, Anmer Hall, is also being made ready for them.
Renovation work has began on the ten-bedroom Georgian mansion, which is located on the Queen's Sandringham estate, and builders have removed top soil from a field to make a new driveway – just one of several improvements designed to provide greater security and privacy the family.