Massive renovation planned at Kensington Palace to accommodate William and Kate moving in

The royals are coming -- and the house is getting an overhaul.

Prince William and Duchess Kate will be moving to London in the fall, into apartment 1A at Kensington Palace, once the Duke finishes his two-year job with the East Anglian Air Ambulance to take on more royal duties. And once the royal couple and their children, Prince George and Princess Charlotte, move in full time, the current residents of Kensington Palace will have to make some space.

SEE ALSO: 10 little-known facts about Kensington Palace

As such, the Historic Royal Palaces have applied for a huge extension to the palace -- what the Daily Mail is calling an 'iceberg' basement. It's a two-story underground expansion, which will be dug below a new extension they want to build next to the Orangery on Palace grounds. The Orangery, described in the plans as an "elaborate greenhouse in the style of an elegant palace," will be revamped as well but will still accommodate its restaurant that is open to the public.

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Kensington Palace and Kensington Gardens
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Kensington Palace and Kensington Gardens
London, United Kingdom - October 17, 2016: People are visiting outside of Kensington Palace in London, England.
London, United Kingdom - October 17, 2016: People are visiting outside of Kensington Palace in Kensington Gardens in London, England
Antique London's photographs: Kensington Palace
London, United Kingdom - October 17, 2016: Gates of Kensington Palace in London, England.
London, United Kingdom - October 17, 2016: People are visiting Kensington Gardens outside of Kensington Palace in London, England
The Orangery of Kensington Palace, London, England, United Kingdom.
London, United Kingdom - October 17, 2016: People are visiting outside of Kensington Palace in London, England.
Kensington Palace, London, birthplace of Queen Victoria. Seen in 1831, this is as it appeared when she was a child. She became Queen in 1837 at the age of 18. From âThe Queenâs Resolve (âI Will Be Goodâ) With Royal Anecdotes and Incidents - A Jubilee Memorialâ by the Rev. Charles Bullock B.D. Published in London by âHome Wordsâ in 1887, the year of Queen Victoriaâs Golden Jubilee. She reigned from 20 June 1837?â 22 January 1901.
England, London. The orangerie at Kensington Palace.
London, United Kingdom - March 31, 2015. Kensington Palace and Gardens, London, England, United Kingdom.
Statue of William III standing outside Kensington Palace.
UNITED KINGDOM - JANUARY 22: Sunken Garden, Kensington Palace in the background, London, England, United Kingdom. (Photo by DeAgostini/Getty Images)
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The massive two-story basement will be 165 feet long, and will make room for the royals and their staff to expand. In total, the new build will add 1,500 square meters of extra space over three floors and will be used for staff offices, storage, and a "ceremonial dress collection."

Such a massive extension is a rare one -- the Kensington and Chelsea council, which currently holds the application (and is expected to say yay or nay next month) has been restricting such massive basements as of late. They still approved a few hundred of these builds in 2016, but have cut back in response to the huge disruption the construction makes.

So first, William and Kate start building a massive hedge "fence" around the palace to block out their neighbors. And now they're potentially breaking ground for an enormous extension that is notoriously disruptive to build. Talk about neighborly!

But hey, if George and Charlotte need some extra space to play, we fully support it.

More in Lifestyle:
Former Butler says Princess Diana made Kate Middleton's life easier
Why Meghan Markle might not be invited to Pippa Middleton's wedding
Duchess Kate sparkles in Erdem at Buckingham Palace reception

Adorable photos of George and Charlotte:

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Prince George and Princess Charlotte attend party in Canada
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Prince George and Princess Charlotte attend party in Canada
Britain's Prince William (2nd R), Catherine, Duchess of Cambridge (2nd L), Prince George and Princess Charlotte (L) watch as a man inflates balloons at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge plays with bubbles at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Carcross, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge with Prince William, Duke of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge with Prince William, Duke of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Princess Charlotte of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
Britain's Prince William (R), Catherine, Duchess of Cambridge (2nd L), Prince George and Princess Charlotte (R) attend a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince George plays with a bubble gun at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince William (2nd L), Catherine, Duchess of Cambridge, Prince George (L) and Princess Charlotte (R) arrive at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince William (2nd L), Catherine, Duchess of Cambridge, Prince George (L) and Princess Charlotte (R) arrive at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince George watches as bubbles are blown at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince William (2nd L), Catherine, Duchess of Cambridge, Prince George (L) and Princess Charlotte (R) arrive at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince George watches as bubbles are blown at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
The Duchess of Cambridge with her daughter Princess Charlotte at a children's party for Military families at Government House in Victoria during the Royal Tour of Canada.
The Duchess of Cambridge with her daughter Princess Charlotte at a children's party for Military families at Government House in Victoria during the Royal Tour of Canada.
VICTORIA, BC - SEPTEMBER 29: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Carcross, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Catherine, Duchess of Cambridge, Princess Charlotte of Cambridge and Prince George of Cambridge, Prince William, Duke of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Carcross, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
Britain's Prince William and his wife Kate, the Duke and Duchess of Cambridge, take part in a tea party with their children Prince George and Princess Charlotte at Government House in Victoria, British Columbia, Canada September 29, 2016. REUTERS/Jonathan Hayward/Pool
Britain's Prince William and his wife Kate, the Duke and Duchess of Cambridge, take part in a tea party with their children Prince George and Princess Charlotte at Government House in Victoria, British Columbia, Canada September 29, 2016. REUTERS/Jonathan Hayward/Pool
Britain's Prince George plays with a bubble gun at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince George plays with bubbles as Prince William looks on during a children's tea party at Government House in Victoria, British Columbia, Canada September 29, 2016. REUTERS/Jonathan Hayward/Pool
Britain's Prince William blows up a balloon as he and his wife Kate, the Duchess of Cambridge, take part in a tea party with their children Prince George and Princess Charlotte at Government House in Victoria, British Columbia, Canada September 29, 2016. REUTERS/Jonathan Hayward/Pool
Britain's Prince George plays with bubbles during a children's tea party at Government House in Victoria, British Columbia, Canada September 29, 2016. REUTERS/Jonathan Hayward/Pool
VICTORIA, BC - SEPTEMBER 29: Catherine, Duchess of Cambridge and Prince George of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge with Prince William, Duke of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge with Prince William, Duke of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge plays with bubbles at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: (NO UK SALES FOR 28 DAYS) Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge attend a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. (Photo by Pool/Sam Hussein/WireImage)
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