15 August:Caerphilly, Aberbargoed and Bargoed (2027). Diana Price (Labour) has died.
Islington, Hillrise (2026). Ollie Steadman (Labour) has resigned.
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.
Manchester, Baguley (2027). Phil Bricknell (Labour) has ceased to be a councillor. He is the new MP for Bolton West.
Merthyr Tydfil, Bedlinog & Trelewis (2027). Malcolm Colbran (Independent) has ceased to be a councillor.
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:
Cambridge, Romsey (2026). Mairéad Healy (Independent elected as Labour) has resigned.
Gateshead, Bridges (2027). Bob Goldsworthy (Labour) has died.
Hackney, London Fields (2026). Lee Laudat-Scott (Labour) has resigned.
Hackney, Stoke Newington (2026). Mete Coban (Labour) has resigned.
Milton Keynes, Bletchley East (2027). Emily Darlington (Labour) has resigned.
Newcastle-upon-Tyne, North Jesmond (2027). Gerry Keating (Liberal Democrat) has resigned.
Norfolk, Freebridge Lynn (2025). John Crofts (Liberal Democrat) has died.
North Ayrshire, Arran (2027). Timothy Billings (Conservative) has resigned.
North Norfolk, North Walsham Market Cross (2027). Richard Sims (Independent, elected as Liberal Democrat) has ceased to be a councillor.
Tower Hamlets, Bow East (2026). Rachel Blake (Labour) has resigned. She is the new MP for Cities of London & Westminster.
16 September:
Gedling, Bestwood St Albans (2027). Des Gibbons (Independent, elected as Labour) has ceased to be a councillor.
19 September:
Stockton-on-Tees, Fairfield (2027). Susan Scott (Conservative) has resigned.
26 September:
Perth & Kinross, Perth City North (2027). Brian Leishman (Labour) has been removed from the list of councillors. He is the new MP for Alloa & Grangemouth.
Perth & Kinross, Strathallan (2027). Crawford Reid (Conservative) has resigned.
Known vacancies:Barking & Dagenham, Village (2026). Lee Waker (Labour) has died.
Blackpool, Marton (2027). Sarah Smith (Labour) has resigned.
Cornwall, Falmouth Penerris (2025). Jayne Kirkham (Labour) has been removed from the list of councillors. She is the new MP for Truro & Falmouth.
Denbighshire, Prestatyn North (2027). Gill German (Labour) has been removed from the list of councillors. She is the new MP for Clywd North.
Denbighshire, Rhyl Trellewelyn (2027). Win Mullen-James (Labour) has died.
Dundee, Lochee (2027). Charlie Malone (Labour) has died.
Dundee, Strathmartine (2027). John Alexander (SNP) has resigned.
Elmbridge, Weybridge St George's Hill (2026). Charu Sood (Conservative) has died.
Falkirk, Falkirk South (2027). Euan Stainbank (Labour) has resigned. He is the new MP for Falkirk.
Fylde, Warton (2027). Julie Brickles (Independent) has died.
Gwynedd, Llanberis (2027). Kim Jones (Plaid Cymru) has ceased to be a councillor.
Harlow, Little Parndon & Town Centre (2028). Chris Vince (Labour) has been removed from the list of councillors. He is the new MP for Harlow.
Hartlepool, Burn Valley (2026). Jonathan Brash (Labour) has been removed from the list of councillors. He is the new MP for Hartlepool.
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.
North East Derbyshire, Clay Cross North (2027). Gerry Morley (Labour) has been removed from the list of councillors.
North Lanarkshire, Fortissat (2027). Kenneth Stevenson (Labour) has been removed from the list of councillors. He is the new MP for Airdrie & Shotts.
North Lanarkshire, Mossend & Holytown (2027). Frank McNally (Labour) has been removed from the list of councillors. He is the new MP for Coatbridge & Bellshill.
Pembrokeshire, The Havens (2027). Peter Morgan (Independent Group) has died.
Powys, Machynlleth (2027). Michael Williams (Independent) has died.
Runnymede, Addlestone South (2026). Jonathan Wilson (Conservative) has died.
Suffolk, Hoxne & Eye (2025). Peter Gould (Con) has died.
Waverley, Godalming Binscombe & Charterhouse (2027). Nick Palmer (Labour) has resigned.
Westminster, Harrow Road (2026). Tim Roca (Labour) has resigned. He is the new MP for Macclesfied.
Westminster, West End (2026). Jessica Toale (Labour) has resigned. She is the new MP for Bournemouth West.
Wolverhampton, Bilston North (2026). Susan Roberts (Labour) has died.
Worthing, Marine (2028). Beccy Cooper (Labour) has resigned.