Which London suburb had the blue plaque marking Turing's birthplace?

The London suburb with the blue plaque marking Alan Turing’s birthplace is Maida Vale.

Turing was born on 23 June 1912 at 2 Warrington Crescent in Maida Vale, west London. His father, Julius Turing, was serving in the Indian Civil Service, but Alan’s parents wanted their children to be born and raised in Britain. The building later became the Colonnade Hotel.

English Heritage installed the official blue plaque on 23 June 1998, what would have been Turing’s 86th birthday. His birthplace is sometimes loosely described as Paddington because Maida Vale lies within the wider Paddington area, but Maida Vale is the suburb named by the plaque and the accepted quiz answer.

Turing’s childhood was not confined to London. His parents travelled between Britain and India, and he spent important early years in Sussex, including at St Leonards-on-Sea. Those locations also have Turing commemorations, which can cause confusion with the birthplace plaque. Maida Vale, however, identifies where he was born, not where he later lived or worked.