11 Downing Street

11 Downing Street in London, also known colloquially in the United Kingdom as Number 11, is the official residence of the Chancellor of the Exchequer (who traditionally also has the title of Second Lord of the Treasury). The residence, in Downing Street in London, was built alongside the official residence of the Prime Minister at Number 10 in 1682.

The first Chancellor to live there was Henry Petty-Fitzmaurice in 1806, but Number 11 did not become the Chancellor's official residence until 1828.

From 1997 to 2022, prime ministers Tony Blair, Gordon Brown, David Cameron, Theresa May and Boris Johnson chose to reside for all or part of their term of office in the flat above Number 11, as its residential apartment is larger than at Number 10. Rishi Sunak broke with this by resuming residence in the smaller flat above Number 10. Current Prime Minister Keir Starmer, his wife Victoria, and their two children are expected to live above Number 11.