Ake, 23, will be part of Pep Guardiola’s squad rebuild at the Etihad Stadium which could see up to two centre-backs bought.
The former Chelsea youth player has excelled at Bournemouth and attracted interest from top Premier League sides.
Ake joined Bournemouth for a club-record £20m in 2017 and remains very still highly rated despite the club’s struggles.
His expected arrival may spell the end for John Stones at Man City after his inconsistent performances.
Guardiola’s former assistant Mikel Arteta could make a move to take 26-year-old Stones to Arsenal.