Sunderland: Paul Middleton, who was elected for the Labour Party in Washington South ward, has had the Labour whip suspended and is therefore sitting as an Independent.
Walsall: Two councillors elected as Independents in Darlaston South ward have joined the Labour Party. They are Chris Bott and her husband Paul Bott. Both had agreed to back a Labour administration in May, but were outvoted in the annual council meeting.
Cambridgeshire: Soham North and Isleham division, after the resignation of Conservative councillor Paul Raynes who has taken a politically restricted job with the Cambridgeshire and Peterborough Combined Authority. Term ends 2021.
Hambleton: Thirsk ward, after the resignation of Conservative councillor Janet Watson. Term ends May next year.
Dates for byelections
Hambleton: The byelection due in Thirsk ward will be held on 4 October.
Lichfield: The byelection due in Stowe ward will be held on 27 September.
Nottingham: The byelection due in Clifton North ward will be held on 27 September.