The latest updates on local electoral information are as follows.
Cardiff: The byelection in Ely division on 21 February was won by Andrea Gibson. Plaid Cymru gain from Labour.
Northamptonshire: The byelection in Oundle division on 21 February was won by Annabel de Capell Brooke. The Conservatives regain a seat they previously held, where the departing councillor had been sitting as an Independent.
Changes of allegiance
Brighton and Hove: Anne Meadows, who was elected for the Labour Party in Moulsecoomb and Bevendean ward, has joined the Conservative Party. Her move follows her deselection for the 2019 elections and means the Conservatives are now the largest group, but a minority Labour administration will remain unless removed by vote of the full council.
Basildon: Vange ward, after the resignation of Labour councillor Kayte Block who has taken a politically restricted job as a prosecutor. Term ends 2020.
Cambridge: Trumpington ward, after the impending resignation of Independent councillor Donald Adey who was elected as a Liberal Democrat. He has been under pressure to quit after moving to Fife. Term ends 2020.
Durham: Esh and Witton Gilbert division, after the resignation of Liberal Democrat councillor Michael McGaun. Term ends 2021.
Rutland: Oakham South West ward, after the resignation of Independent councillor Richard Alderman. His term was due to end in May so no byelection will be held.
Tamworth: Castle ward, after the death of Conservative councillor Steve Claymore. His term was due to end in May so there will be no byelection for a replacement.
Dates for byelections
Basildon: The byelection due in Vange ward will be held on 21 March.
Durham: The byelection due in Esh and Witton Gilbert division will be held on 21 March.