Councillor Neil Blake has been chosen to be the new leader of Aylesbury Vale District Council.
Mr Blake, who represents Great Brickhill, will take up the post after winning a vote among Conservative members last night.
He beat off competition from Michael Edmonds, the deputy leader, and Phil Yerby, a former cabinet member.
Mr Blake, who is the cabinet member for resources, will be officially announced as leader at a full council meeting tonight.
He replaces Councillor John Cartwright, who has led the authority for 13 years.