Welwyn Hatfield: Haldens ward, after the resignation of Conservative councillor Malcolm Spinks. Term ends 2018.
Dates for byelections
Carlisle: The byelection due in Castle ward will be held on 24 November.
Eastbourne: The byelection due in Sovereign ward will be held on 24 November.
Harborough: The byelection due in Misterton ward will be held on 17 November.
Pendle: The byelection due in Reedley ward will be held on 24 November.
St Edmundsbury: The byelection due in Bardwell ward will be held on 24 November.
South Somerset: The byelection due in Turn Hill ward will be held on 24 November.
Welwyn Hatfield: The byelection due in Haldens ward will be held on 17 November.
Other updates
Guildford: In a referendum on 13 October, 4,948 Guildford voters wanted a directly-elected Mayor, while 20,639 wanted to keep the existing council leader system.