Mid Devon: A reorganisation of the non-party political groups has taken place, with the Non-Aligned Group picking up two councillors previously sitting as Independent, and two councillors who had been in an Independent group.
Thanet: David Hart, who was elected for the Conservatives in Thanet Villages ward, has joined the Thanet Independents. David Wallin, who was elected for the Conservatives in Dane Valley ward but left the party in January, has also joined the group.
Thurrock: Colin Churchman, who was elected for the Conservatives in Aveley and Uplands ward, has left the party to sit as an Independent councillor.
Bedford: Kingsbrook ward, after the death of Liberal Democrat councillor Patrick Solomon. His term was due to end in May so no byelection will be held.
Brentwood: South Weald ward, after the resignation of Conservative councillor Tom McLaren, following a disagreement over a planning decision. Term ends 2026.
Canterbury: Blean Forest ward, after the death of Conservative councillor Barbara Flack. Her term would have ended in May so she will not be replaced. As a result of her death the Conservatives have lost their overall majority.
Durham: Chester-le-Street East division, after the death of Conservative councillor Beaty Bainbridge who was chair of the council. Term ends 2025.
Epping Forest: Lambourne ward, after the death of Conservative councillor Brian Rolfe. His term was due to end in May so there will not be a byelection.
Liverpool: Picton ward, after the resignation of Labour councillor Abdul Qadir. As a full council election is due in May there will be no byelection.
Torbay: Goodrington with Roselands ward, after the resignation of Conservative councillor Jane Barnby. Her term was due to end in May so there will be no byelection.
West Oxfordshire: Ducklington ward, after the resignation of Conservative councillor Ben Woodruff in protest at a planning appeal decision. Term ends 2026.
Mid Devon: Following the resignation of Bob Deed, the non-aligned group has formed an administration. The council has also voted to adopt a committee system of government following the full council elections in May.