Portsmouth: Baffins ward, after the resignation of Conservative councillor Steve Hastings (who was elected for the UK Independence Party but joined the Conservatives in May 2015). As his term would have ended in May, he will not be replaced in a byelection.
Reigate and Banstead: South Park and Woodhatch ward, after the resignation of Conservative councillor Simon Rickman. As his term was due to end in May, there will be no byelection.
Dates for byelections
Cornwall: The byelection due in Falmouth Smithick division will be held on 1 February.
Milton Keynes: The byelection due in Newport Pagnell North and Hanslope ward will be held on 18 January.
Isle of Wight: The byelection due in Central Wight division will be held on 25 January.