Kate Middleton and Prince William are making moves — literally!

The Duke and Duchess of Cambridge, both 34, will take over Princess Diana‘s former apartment when they soon move into London’s Kensington Palace full-time, according to the Daily Mail.

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Diana with William and Harry at Kensington Palace in 1985.

While the royal couple — who are parents to kids Prince George, 2, and Princess Charlotte, 1 — will live in Kensington Palace’s 20-room Apartment 1A, Kate, William and Prince Harry, 31, will use Diana’s former residence, Apartments 8 and 9, as a workspace for “official responsibilities and charitable work.”

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“They have two lovely new reception rooms which are great spaces for them to have meetings and officially entertain. One of the rooms was the drawing room which overlooks the rose garden and outside courtyard and was at one time connected to the dining room. The other room was a TV and sitting room,” royals expert Ingrid Seward revealed.

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Kensington Palace’s Apts 8 and 9 (circled left) and Apt 1 (right).

“You can understand why the boys wanted to take the rooms on. I imagine it’s a way of them keeping Diana’s memory alive,” Seward added.

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Diana — who sadly passed away at age 36 in an August 1997 car crash — previously lived in Apartments 8 and 9 with her husband, Prince Charles. Kate and William will reportedly make Kensington Palace their “full-time family home and long-term residence” in 2017 when George starts elementary school.