Charnwood: Christine Harris, who was elected for the Labour Party in Loughborough Lemyngton ward, has left the party to sit as an Independent councillor.
Cornwall: John Symons, who was elected for the Conservatives in Penryn East and Mylor division, has joined the Independent group.
Derbyshire Dales: Two councillors have joined the Green/Independent group. They are Claire Raw, who was elected for the Labour Party in Hathersage and Eyam ward, and Clare Gamble, elected for the Liberal Democrats in Litton and Longstone ward. Richard Bright, elected for the Conservatives in Hulland ward, is now an Independent councillor.
Erewash: Michael Wallis, who was elected for the Conservatives in Ockbrook and Borrowash ward, has left the party to sit as an Independent councillor.
Rutland: Two Conservative councillors have left the party to sit as Independent councillors. They are David Blanksby (Barleythorpe ward) who has returned to the Independent group, and Richard Coleman (Ryhall and Casterton ward) who is sitting as a non-aligned Independent.
Shropshire: Matt Lee, who was elected for the Conservatives in Llanymynech division but left the party in October 2018, has resumed the party whip.
South Tyneside: Angela Hamilton, who was elected for the Labour Party in Beacon and Bents ward but had the party whip removed in October 2019, has been readmitted.
Stroud: Skeena Rathor, who was elected fro the Labour Party in Stroud Central ward, has left the party to sit as an Independent councillor. Likewise Darren Loftus, who was elected for the Conservatives in Chalford ward, has left the party to sit as an Independent.
Swale: Sheerness ward, after the death of Labour councillor Mark Ellen. Term ends 2023.
Tameside: Longdendale ward, after the disqualification of Labour councillor Chris Buglass who failed to attend any meetings for six months. His term would have been extended to May so no byelection will happen.
Test Valley: Andover Millway ward, after the resignation of Andover Alliance councillor Alison Watts. Term ends 2023.
Dates for byelections
In England, all current vacancies which do not fill a term ending in 2021 will be held on 6 May 2021, the ordinary day for local elections. The Cabinet Office has confirmed that local elections teams should not plan on this date being brought forward. Regulations in Wales require outstanding byelections to be held in a period between 1 March and 6 May 2021.
Monmouthshire: The byelection due in St Kingsmark division will be held on 1 April.
Torfaen: The byelection due in Abersychan and Cwmavon division will be held on 8 April.
Torfaen: The byelection due in Cwmynyscoy division will be held on 8 April.
Torfaen: The byelection due in New Inn division will be held on 8 April.