Middlesbrough Council is a unitary authority in North Yorkshire, England.
The by-election was caused by the resignation of Councillor Ansab Shan, a member of the Labour Party, to accept an appointment with the Crown Prosecution Service[16] The by-election was caused by the resignation of Councillor John Cole, Labour's chair of Middlesbrough Council's planning committee.
[18] The by-election was caused by the death of Councillor Bernie Taylor.
[20] The by-election was caused by the death of Councillor Peter Cox.
[23] The by-election was caused by the resignation of Councillor Jan Mohan, citing health reasons.