Theresa May is unveiling a major Cabinet reshuffle, making Philip Hammond Chancellor amid George Osborne's resignation in a major shakeup of her top team.
It comes after she gave her first, three-minute speech as Prime Minister declaring to the poor: "Together we will build a better Britain".
Mrs May strolled with husband Philip through the black door of Number 10 just 90 minutes after David Cameron gave an emotional farewell address - group hugging his wife Samantha and children Elwen, Florence and Nancy on the doorstep.
Mr Cameron said serving as Prime Minister had been "the greatest honour of my life" before making the short trip to Buckingham Palace to hand in his resignation at 5pm.
Mrs May was invited to form a government by the Queen just after 5.30pm in a swift changeover and was due to give her first speech on the steps of Downing Street.