Keir Starmer is leaving Downing Street as Andy Burnham takes over as prime minister, marking a major shift at the top of UK politics. The change follows Burnham becoming leader of the Labour Party, a step that clears the way for him to formally move into Number 10.

The transition is being framed not just as a political moment but also as a constitutional and ceremonial one. As Starmer departs, attention turns to the practical and symbolic process through which power is passed from one prime minister to the next.

The account suggests that Burnham’s rise had long been seen by many as likely, giving the handover an air of expectation rather than surprise. Even so, the moment remains significant because it combines party leadership change with the public transfer of authority at the heart of government.

At its core, the development is about how leadership changes are enacted in Britain: one prime minister leaves Number 10, another arrives, and the machinery of government continues under a new figure. Burnham now steps into office as Starmer’s time in Downing Street comes to an end.