Vale of Glamorgan: Kevin Mahoney, who was elected for the UK Independence Party in Sully division, has left the party over the selection process for candidates for the National Assembly for Wales. He will now sit as an Independent councillor.
Broadland: Aylsham ward, after the resignation of Conservative councillor Jo Cottingham. Term ends 2019.
Cornwall: Menheniot division, after the death of Conservative councillor Bernie Ellis. Term ends 2017.
Cornwall: Wadebridge West division, after the impending resignation of Conservative councillor Scott Mann, now Member of Parliament for North Cornwall. Term ends 2017.
East Sussex: St Helens and Silverhill division, after the death of Labour county councillor John Hodges. Term ends 2017.
Forest Heath: Brandon West ward, after the resignation of Conservative councillor David Bimson, who has since died. Term ends 2019.