Harrow: The byelection in Kenton East ward on 20 April was won by Nitesh Hirani. Conservative gain from Labour.
Richmondshire: When nominations closed for the byelection in Reeth and Arkengathdale, only one candidate had been nominated; Ian Scott has therefore been elected unopposed and there will be no poll on 18 May. Conservative gain from Independent.
Ashford: Victoria ward, after the death of Conservative councillor Harold Apps. Term ends 2019.
Cornwall: Bodmin St Petroc division, after the death of Liberal Democrat councillor Steve Rogerson. With full council elections due on 4 May there will be no byelection, but the council election will be postponed.
Dates for byelections
Salford: The byelection due in Claremont ward will be held on 8 June.
Southend-on-Sea: The byelection due in Shoeburyness ward will be held on 25 May.
Cornwall: The election due on 4 May in Bodmin St Petroc division has been postponed after the death of Steve Rogerson, who had been nominated as the Liberal Democrat candidate.