Thursday 12th December 2024
- Brockmoor and Pensnett (Dudley) – due to the resignation of Judy Foster (Labour)
- Milton Regis (Swale) – due to the resignation of Angie Valls (Labour)
- West Thamesmead (Greenwich) – due to the resignation of Chris Lloyd (Liberal Democrat, was Labour)
Thursday 9th January 2025
- Instow (North Devon) – due to the resignation of Lucinda Renshaw (Conservative)
Thursday 16th January 2025
- Chesterton (Cotswold) – due to the resignation of Roly Hughes (Liberal Democrat)
- Saltford (Bath and North East Somerset) – due to the resignation of Alison Streatfeild-James (Liberal Democrat)
Thursday 23rd January 2025
- Bannockburn (Stirling) – due to the death of Margaret Brisley (Labour)
- Colinton and Fairmilehead (Edinburgh) [two seats] – due to the resignation of Marco Biagi (SNP) and Louise Spence (Liberal Democrat)
- Much Woolton and Hunts Cross (Liverpool) – due to the resignation of Dave Aizlewood (Liberal Democrat)
- Shetland North (Shetland) – due to the resignation of Tom Morton (Labour)
- Town (Newcastle-under-Lyme) – due to the resignation of Wendy Brockie (Labour)
Thursday 13th February 2025
- Kirkintilloch East and North and Twechar (East Dunbartonshire) – due to the resignation of Susan Murray (Liberal Democrat) following her election as MP for Mid Dunbartonshire
Vacancies
- Baxenden (Hyndburn) – due to the death of Edward Blake (Labour)
- Hasland (Chesterfield) – due to the resignation of Stuart Brittain (Labour)
- Hatfield North (Hertfordshire) – due to the death of James Bond (Conservative)
- Kilmarnock North (East Ayrshire) – due to the death of Maureen McKay (Labour)
- Manor (Stevenage) – due to the death of Graham Snell (Liberal Democrat)
- North East (Glasgow) – due to the disqualification of Mary McNab (Labour) following her not leaving employment with the council by the deadline
- Tiptree (Colchester) – due to the death of Roger Mannion (Conservative)
- Trevethin and Penygarn (Torfaen) – due to the resignation of Sue Malson (Labour)
- Vincent Square (Westminster) – due to the death of Gillian Arrindell (Labour)
- Whalebone (Barking and Dagenham) – due to the death of Glenda Paddle (Labour)
- Winnersh (Wokingham) – due to the death of Paul Fishwick (Liberal Democrat)
2025 Local Elections
- County Councils – Cambridgeshire, Derbyshire, Devon, Gloucestershire, Hertfordshire, Kent, Lancashire, Leicestershire, Lincolnshire, Nottinghamshire, Oxfordshire, Staffordshire, Surrey, Warwickshire, Worcestershire
- Metropolitan Boroughs – Doncaster
- Unitary Authorities – Buckinghamshire, Cornwall, Durham, North Northamptonshire, Northumberland, Shropshire, West Northamptonshire, Wiltshire
- Combined Authority Mayors – Cambridgeshire and Peterborough, Greater Lincolnshire, Hull and East Yorkshire, West of England
- Mayors – Doncaster, North Tyneside
- Others – City of London, Isles of Scilly