15 August:Caerphilly, Aberbargoed and Bargoed (2027). Diana Price (Labour) has died.
Islington, Hillrise (2026). [Unknown] (Labour) has ceased to be a councillor.
Stirling, Dunblane & Bridge of Allan (2027). Ewan Dillon (Independent elected as Labour) has ceased to be a councillor.
22 August:Northumberland, Cramlington Eastfield (2025). Christine Dunbar (Conservative) has resigned.
Three Rivers, Abbots Langley & Bedmond (2028). Matthew Bedford (Liberal Democrat) has resigned.
West Lothian, Armadale & Blackridge (2027). Stuart Borrowman (Independent) has died.
29 August:Hertfordshire, Bedwell (2025). Sharon Taylor, Baroness Taylor of Stevenage (Labour), has resigned.
Wychavon, Badsey & Aldington (2027). Philippa Capel (Conservative) has ceased to be a councillor.
Wychavon, Harvington & Norton (2027). Bradley Thomas (Conservative) has resigned.
3 September:
Swale, Priory (2027). Mike Henderson (Liberal Democrat) has died.
5 September:Camden, Camden Square (2026). Danny Beales (Labour) has resigned.
Camden, Kentish Town South (2026). Georgia Gould (Labour) has resigned.
Camden, Kilburn (2026). Lloyd Hatton (Labour) has resigned.
Cheshire East, Crewe West (2027). Connor Naismith (Labour) has ceased to be a councillor.
Merthyr Tydfil, Bedlinog & Trelewis (2027). Malcolm Colbran (Independent) has ceased to be a councillor.
Milton Keynes, Bletchley East (202). Emily Darlington (Labour) has resigned.
Redcar & Cleveland, Longbeck (2027). A notice of vacancy has been published - I presume this will be resignation of Luke Myer (Labour) who is the new MP for Middlesbrough South & East Cleveland.
12 September:
Gateshead, Bridges (2027). Bob Goldsworthy (Labour) has died.
Newcastle-upon-Tyne, North Jesmond (2027). Gerry Keating (Liberal Democrat) has resigned.
North Ayrshire, Arran (2027). Timothy Billings (Conservative) has resigned.
Tower Hamlets, Bow East (2026). Rachel Blake (Labour) has resigned. She is the new MP for Cities of London & Westminster.
Known vacancies:Barking & Dagenham, Village (2026). Lee Waker (Labour) has died.
Blackpool, Marton (2027). Sarah Smith (Labour) has been removed from the list of councillors.
Cambridge, Romsey (2026). Mairéad Healy (Independent elected as Labour) has resigned.
Denbighshire, Rhyl Trellewelyn (2027). Win Mullen-James (Labour) has died.
Dundee, Lochee (2027). Charlie Malone (Labour) has died.
Fylde, Warton (2027). Julie Brickles (Independent) has died.
Gwynedd, Llanberis (2027). Kim Jones (Plaid Cymru) has ceased to be a councillor.
Hackney, London Fields (2026). Lee Laudat-Scott (Labour) has resigned.
Hackney, Stoke Newington (2026). Mete Coban (Labour) has resigned.
Herefordshire, Credenhill (2027). Bob Matthews (Independent) has died.
Highland, Cromarty Firth (2027). Pauline Munro (Highland Independent) has resigned.
Highland, Cromarty Firth (2027). Molly Nolan (Liberal Democrat) has resigned.
Highland, Inverness Central (2027). Bet McAllister (Independent) announced her intention to resign.
Huntingdonshire, St Neots Eatons (2026). Graham Welton (Conservative) has been removed from the list of councillors.
Lancaster, Scotforth East (2027). Sophie Maddocks (Labour) has ceased to be a councillor.
Neath Port Talbot, Resolven & Tonna (2027). Dean Lewis (Independent) has been removed from the list of councillors.
Norfolk, Freebridge Lynn (2025). John Crofts (Liberal Democrat) has died.
North East Derbyshire, Clay Cross North (2027). Gerry Morley (Labour) has been removed from the list of councillors.
Perth & Kinross, Strathallan (2027). Crawford Reid (Conservative) has resigned.
Pembrokeshire, The Havens (2027). Peter Morgan (Independent Group) has died.
Powys, Machynlleth (2027). Michael Williams (Independent) has died.
Suffolk, Hoxne & Eye (2025). Peter Gould (Con) has died.
Worthing, Marine (2028). Beccy Cooper (Labour) has resigned.