The new Prime Minister and his girlfriend will move into the four-bedroom flat above No11 as Mr Javid will move into a smaller flat above No10, The Sun reported. The former Home Secretary has been left to move into the two-bedroom flat with his wife, Laura, and four children. Allies of Mr Javid has said he is likely to stay at his family home in Fulham, West London.
A source close to Mr Johnson confirmed his plans, according to The Sun.
They said: “Boris is only following precedent.”
The swap between the flats came after Tony Blair in 1997 who had to accommodate for his large family whereas his Chancellor, Gordon Brown, was single.
Mr Johnson won’t move into the flat for a few days as Theresa and Philip May have only just moved it.
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The moving arrangements come after Mr Johnson chose his new Cabinet which includes Priti Patel as Home Secretary and an array of prominent Brexiteers receiving top jobs.
Dominic Raab is Foreign Secretary and First Secretary of State – effectively making him Mr Johnson’s deputy Prime Minister.
In possibly the most dramatic appointment of the evening, arch Brexiteer Jacob Rees-Mogg, who proved such a thorn in the side of Mrs May, was made Leader of the Commons.
Unusually, Downing Street said that he would not be a full member of the Cabinet, although he will attend Cabinet meetings.
Mr Hunt was forced from his role as Foreign Secretary and his supporters were rounded on by the new Tory leader.
Mr Johnson sacked Liam Fox as international trade secretary and Penny Mordaunt as defence secretary who both backed Mr Hunt.
The new Cabinet sees Michael Gove, Mr Johnson’s Vote Leave colleague who scuppered his last leadership bid, moved to become the Chancellor of the Duchy of Lancaster and replaced as Environment Secretary by fellow Brexiteer Theresa Villiers.
Gavin Williamson becomes Education Secretary, less than three months after he was sacked from defence over suspicions he leaked details of Huawei discussions from the National Security Council.