Theresa May will become Britain’s second female prime minister on Wednesday evening after David Cameron makes his final Commons appearance as premier.
Mr Cameron hailed his successor as “strong and competent” as he announced he would go to Buckingham Palace to offer his resignation to the Queen following Prime Minister’s Questions.
Mrs May’s coronation follows rival Andrea Leadsom’s shock decision to pull out of the Tory leadership race.
The Prime Minister said he was “delighted” that the Home Secretary would succeed him in Downing Street.
Mr Cameron will chair his last Cabinet meeting on Tuesday morning and will take his final Prime Minister’s Questions at noon on Wednesday.
In a statement outside the Commons following her election as Tory party leader, Mrs May praised Mr Cameron for his stewardship of the party and country.
Mrs May also hailed Andrea Leadsom, whose shock decision to pull out of the Tory leadership race paved the way for her coronation, for the “dignity” she had shown.