South Cambridgeshire DC, Whittlesford – 27 February
Conservative seat. Cause: Resignation
LD candidate: James Hobro
Cambridgeshire CC, Duxford – 27 February
Conservative seat. Cause: Resignation
LD candidate: Peter McDonald
Cheshire East UA, Crewe South – 27 February
Labour seat. Cause: Death
Hillingdon LB, Hillingdon East – 27 February
Conservative seat
LD candidate: Chris Hoope
Manchester CC, Clayton and Openshaw – 27 February
Labour seat. Cause: Death
LD candidate: Claude Nsumbu
Wrexham UA, Gwersyllt North – 27 February
Independent seat. Cause: Resignation
LD candidate: Graham Kelly
Blaby DC, Millfield – 27 February
Labour seat. Cause: Death
Wiltshire UA, Till and Wylye Valley – 10 March
Conservative seat. Cause: Resignation
Highland CC, Skye and Lochalse – 12 March
LD candidate: Fay Thompson
Highland UA, Eilean a’ Cheò – 12 March
Independent seat. Cause: Death
Stratford-on-Avon DC, Welford-on-Avon – 12 March
Independent seat. Cause: Death
LD candidate: Manuela Perteghella
Ashford BC, Park Farm North – 12 March
Conservative seat. Cause: Resignation
Clackmannanshire UA, Clackmannanshire East – 19 March
Conservative seat. Cause: Resignation
LD candidate: John Biggam
Test Valley BC, Chilworth, Nursling & Rownhams – 19 March
Conservative seat. Cause: Death
Coventry BC, Upper Stoke – 19 March
Labour seat. Cause: Death