2010–2015 Parliament of the United Kingdom
2005–2010 Parliament 2015–2017 Parliament
Casas del Parlamento. Palacio de Westminster - panoramio (1).jpg
Legislative bodyParliament of the United Kingdom
Term18 May 2010 (2010-05-18) – 30 March 2015 (2015-03-30)
Election2010 United Kingdom general election
GovernmentCameron–Clegg coalition
House of Commons
SpeakerJohn Bercow
LeaderWilliam Hague
Andrew Lansley – until reshuffle in 2014
Sir George Young, Bt – until 4 September 2012
Prime MinisterDavid Cameron
Leader of the OppositionEd Miliband
Harriet Harman – acting until 25 September 2010
Third-party leaderNick Clegg - as Deputy Prime Minister
House of Lords
Lord SpeakerBaroness D'Souza
Baroness Hayman – until 31 August 2011
LeaderBaroness Stowell of Beeston
Lord Hill of Oareford – until 15 July 2014
Lord Strathclyde – until 7 January 2013
Leader of the OppositionBaroness Royall of Blaisdon
Third-party leaderLord Wallace of Tankerness
Lord McNally – until 15 October 2013
Crown-in-ParliamentElizabeth II
1st25 May 2010 (2010-05-25) – 1 May 2012 (2012-05-01)
2nd9 May 2012 (2012-05-09) – 25 April 2013 (2013-04-25)
3rd8 May 2013 (2013-05-08) – 14 May 2014 (2014-05-14)
4th4 June 2014 (2014-06-04) – 26 March 2015 (2015-03-26)

The 2010 general election took place on 6 May 2010 and saw each of Parliament's 650 constituencies return one Member of Parliament (MP) to the House of Commons. Parliament, which consists of the House of Lords and the elected House of Commons, was convened on 25 May at the Palace of Westminster by Queen Elizabeth II. It was dissolved at the beginning of 30 March 2015, being 25 working days ahead of the 2015 general election on 7 May 2015.

The Conservative Party, led by David Cameron, became the single largest party, though without an overall majority. This resulted in a hung parliament. A coalition agreement was then formed following negotiations with the Liberal Democrats and their leader Nick Clegg. John Bercow resumed his role as Speaker of the House of Commons. In September 2010, Ed Miliband won a Labour Party leadership vote to succeed Gordon Brown as permanent Leader of the Opposition.

In the House of Lords, Baroness Hayman (formerly a Labour member) resumed her role as Lord Speaker until the end of her five-year term in 2011, after which she did not seek re-election in the house. Peers elected former Crossbencher Baroness D'Souza to replace her. From the start of this Parliament the Lords were "led" by Lord Strathclyde without an absolute majority on his Conservative benches. In January 2013 he stood down and was succeeded by Lord Hill of Oareford.

Notable newcomers elected in this general election included Liz Kendall, Guto Bebb, Gloria De Piero, Sajid Javid, Michael Dugher, Amber Rudd, Lisa Nandy, Damian Hinds, Anna Soubry, Heidi Alexander, Jacob Rees-Mogg, Alison McGovern, Chris Williamson, Owen Smith, Nicky Morgan, Tristram Hunt, Dan Poulter, Esther McVey, Priti Patel, Luciana Berger, Karen Bradley, Chuka Umunna, Louise Mensch, Dominic Raab, Tracey Crouch, Valerie Vaz and Caroline Lucas.

During the 2010–15 Parliament, John Bercow was the Speaker, David Cameron served as Prime Minister, and Harriet Harman and Ed Miliband served as Leader of the Opposition.

House of Commons composition (2010 and 2015)

The Commons chamber immediately prior to the Queen's Speech debate on 25 May 2010
The Commons chamber immediately prior to the Queen's Speech debate on 25 May 2010

These are graphical representations of the House of Commons showing a comparison of party strengths as it was directly after the 2010 general election and before the 2015 general election:

House of Commons (Start of 55th Parliament).svg
House of Commons (End of 55th Parliament).svg

This table shows the number of MPs in each party:

Affiliation Members[1]
After 2010 general election At dissolution of Parliament
Conservative 306 302
Labour 258 256
Liberal Democrats 57 56
DUP 8 8
SNP 6 6
Sinn Féin 5 5
0 4
Plaid Cymru 3 3
SDLP 3 3
UKIP 0 2
Green 1 1
Alliance 1 1
Ind. Unionist 1 1
Respect 0 1
1 1
Total number of seats
650 650
Actual government majority
83 73


  1. The Scottish National Party and Plaid Cymru sat together as a party group.
  2. Sinn Féin did not take its seats.
  3. This is not the official seating plan of the House of Commons, which has five rows of benches on each side, with the government party to the right of the Speaker and opposition parties to the left, but with room for only around two-thirds of MPs to sit at any one time.

List of MPs elected in the general election

The following table is a list of MPs elected, ordered by constituency. As the constituency boundaries changed for this election, the "notional incumbent" column lists the party estimated to have won the seat at the 2005 election, had that election been conducted under the new boundaries.

Names of incumbents are listed where they stood for re-election; for details of defeated new candidates and the incumbent who stood down in those cases see individual constituency articles.

Constituency Party of notional
incumbent before election
Member returned (2010) Notes
Aberavon Labour Hywel Francis (L) Seat held
Aberconwy Labour Guto Bebb (C) New constituency
Aberdeen North Labour Frank Doran (L) Seat held
Aberdeen South Labour Anne Begg (L) Seat held
Airdrie and Shotts Labour Pamela Nash (L) Seat held. Incumbent John Reid stood down
Aldershot Conservative Gerald Howarth (C) Seat held
Aldridge-Brownhills Conservative Richard Shepherd (C) Seat held
Altrincham and Sale West Conservative Graham Brady (C) Seat held
Alyn and Deeside Labour Mark Tami (L) Seat held
Amber Valley Labour Nigel Mills (C) Gain. Defeated incumbent Judy Mallaber (L)
Angus SNP Mike Weir (SNP) Seat held
Arfon Labour Hywel Williams (PC) New constituency; previously MP for main predecessor, Caernarfon
Argyll and Bute Liberal Democrats Alan Reid (LD) Seat held
Arundel and South Downs Conservative Nick Herbert (C) Seat held
Ashfield Labour Gloria De Piero (L) Seat held. Defeated incumbent Geoff Hoon stood down
Ashford Conservative Damian Green (C) Seat held
Ashton-under-Lyne Labour David Heyes (L) Seat held
Aylesbury Conservative David Lidington (C) Seat held
Ayr, Carrick and Cumnock Labour Sandra Osborne (L) Seat held
Banbury Conservative Tony Baldry (C) Seat held
Banff and Buchan SNP Eilidh Whiteford (SNP) Seat held. Incumbent Alex Salmond stood down
Barking Labour Margaret Hodge (L) Seat held
Barnsley Central Labour Eric Illsley (L) Seat held. Illsley was suspended from his party and had the whip withdrawn on 19 May after he was charged with false accounting over the United Kingdom Parliamentary expenses scandal.[2] By-election 2011
Barnsley East Labour Michael Dugher (L) New constituency
Barrow and Furness Labour John Woodcock (L) Seat held. Incumbent John Hutton stood down
Basildon and Billericay Conservative John Baron (C) Seat held
Basingstoke Conservative Maria Miller (C) Seat held
Bassetlaw Labour John Mann (L) Seat held
Bath Liberal Democrats Don Foster (LD) Seat held
Batley and Spen Labour Mike Wood (L) Seat held
Battersea Labour Jane Ellison (C) Gain. Defeated incumbent Martin Linton (L)
Beaconsfield Conservative Dominic Grieve (C) Seat held
Beckenham Conservative Bob Stewart (C) Seat held. Incumbent Jacqui Lait stood down
Bedford Labour Richard Fuller (C) Gain. Defeated incumbent Patrick Hall (L)
Belfast East DUP Naomi Long (APNI) Gain. Defeated incumbent Peter Robinson (DUP)
Belfast North DUP Nigel Dodds (DUP) Seat held
Belfast South SDLP Alasdair McDonnell (SDLP) Seat held
Belfast West Sinn Féin Gerry Adams (SF) Seat held. By-election 2011: see below.
Bermondsey and Old Southwark Liberal Democrats Simon Hughes (LD) Seat held by incumbent for the main predecessor seat
Berwick-upon-Tweed Liberal Democrats Sir Alan Beith (LD) Seat held
Berwickshire, Roxburgh and Selkirk Liberal Democrats Michael Moore (LD) Seat held
Bethnal Green and Bow Respect Rushanara Ali (L) Gain. Defeated incumbent George Galloway
Beverley and Holderness Conservative Graham Stuart (C) Seat held
Bexhill and Battle Conservative Greg Barker (C) Seat held
Bexleyheath and Crayford Conservative David Evennett (C) Seat held
Birkenhead Labour Frank Field (L) Seat held
Birmingham, Edgbaston Labour Gisela Stuart (L) Seat held
Birmingham, Erdington Labour Jack Dromey (L) Seat held. Incumbent Siôn Simon stood down
Birmingham, Hall Green Labour Roger Godsiff (L) Seat held. Incumbent Steve McCabe stood down to run at Birmingham Selly Oak
Birmingham, Hodge Hill Labour Liam Byrne (L) Seat held
Birmingham, Ladywood Labour Shabana Mahmood (L) Seat held. Incumbent Clare Short stood down
Birmingham, Northfield Labour Richard Burden (L) Seat held
Birmingham, Perry Barr Labour Khalid Mahmood (L) Seat held
Birmingham, Selly Oak Labour Steve McCabe (L) Seat held (by ex-MP for Birmingham Hall Green). Incumbent Lynne Jones stood down
Birmingham, Yardley Liberal Democrats John Hemming (LD) Seat held
Bishop Auckland Labour Helen Goodman (L) Seat held
Blackburn Labour Jack Straw (L) Seat held
Blackley and Broughton Labour Graham Stringer (L) Seat held by incumbent for the main predecessor seat
Blackpool North and Cleveleys Labour Paul Maynard (C) New constituency
Blackpool South Labour Gordon Marsden (L) Seat held
Blaenau Gwent BGPV Nick Smith (L) Gain. Defeated incumbent Dai Davies (BGPV)
Blaydon Labour Dave Anderson (L) Seat held
Blyth Valley Labour Ronnie Campbell (L) Seat held
Bognor Regis and Littlehampton Conservative Nick Gibb (C) Seat held
Bolsover Labour Dennis Skinner (L) Seat held
Bolton North East Labour David Crausby (L) Seat held
Bolton South East Labour Yasmin Qureshi (L) Seat held. Incumbent Brian Iddon stood down
Bolton West Labour Julie Hilling (L) Seat held. Incumbent Ruth Kelly stood down
Bootle Labour Joe Benton (L) Seat held
Boston and Skegness Conservative Mark Simmonds (C) Seat held
Bosworth Conservative David Tredinnick (C) Seat held
Bournemouth East Conservative Tobias Ellwood (C) Seat held
Bournemouth West Conservative Conor Burns (C) Seat held. Incumbent John Butterfill stood down
Bracknell Conservative Phillip Lee (C) Seat held. Incumbent Andrew MacKay stood down
Bradford East Labour David Ward (LD) New constituency
Bradford South Labour Gerry Sutcliffe (L) Seat held
Bradford West Labour Marsha Singh (L) Seat held. By-election in 2012, see below.
Braintree Conservative Brooks Newmark (C) Seat held
Brecon and Radnorshire Liberal Democrats Roger Williams (LD) Seat held
Brent Central Labour Sarah Teather (LD) New constituency; previously MP for defunct Brent East; Dawn Butler (L) MP for defunct Brent South, also stood
Brent North Labour Barry Gardiner (L) Seat held
Brentford and Isleworth Labour Mary Macleod (C) Gain. Defeated incumbent Ann Keen (L)
Brentwood and Ongar Conservative Eric Pickles (C) Seat held
Bridgend Labour Madeleine Moon (L) Seat held
Bridgwater and West Somerset Conservative Ian Liddell-Grainger (C) Seat held by incumbent for the main predecessor seat
Brigg and Goole Labour Andrew Percy (C) Gain. Defeated incumbent Ian Cawsey (L)
Brighton, Kemptown Labour Simon Kirby (C) Gain. Incumbent Des Turner stood down
Brighton, Pavilion Labour Caroline Lucas (G) Gain. First Green MP elected. Incumbent David Lepper stood down
Bristol East Labour Kerry McCarthy (L) Seat held
Bristol North West Labour Charlotte Leslie (C) Gain. Incumbent Doug Naysmith stood down
Bristol South Labour Dawn Primarolo (L) Seat held
Bristol West Liberal Democrats Stephen Williams (LD) Seat held
Broadland Conservative Keith Simpson (C) Seat held by incumbent for the main predecessor seat
Bromley and Chislehurst Conservative Bob Neill (C) Seat held
Bromsgrove Conservative Sajid Javid (C) Seat held. Incumbent Julie Kirkbride stood down
Broxbourne Conservative Charles Walker (C) Seat held
Broxtowe Labour Anna Soubry (C) Gain. Defeated incumbent Nick Palmer (L)
Buckingham Conservative John Bercow (Speaker) Seat held; previously elected as Conservative
Burnley Labour Gordon Birtwistle (LD) Gain
Burton Labour Andrew Griffiths (C) Gain.
Bury North Labour David Nuttall (C) Gain.
Bury South Labour Ivan Lewis (L) Seat held
Bury St Edmunds Conservative David Ruffley (C) Seat held
Caerphilly Labour Wayne David (L) Seat held
Caithness, Sutherland and Easter Ross Liberal Democrats John Thurso (LD) Seat held
Calder Valley Labour Craig Whittaker (C) Gain
Camberwell and Peckham Labour Harriet Harman (L) Seat held
Camborne and Redruth Liberal Democrats George Eustice (C) New constituency
Cambridge Liberal Democrats Julian Huppert (LD) Seat held. Incumbent David Howarth stood down
Cannock Chase Labour Aidan Burley (C) Seat gain. Incumbent Tony Wright stood down
Canterbury Conservative Julian Brazier (C) Seat held
Cardiff Central Liberal Democrats Jenny Willott (LD) Seat held
Cardiff North Labour Jonathan Evans (C) Gain. Defeated incumbent Julie Morgan.
Cardiff South and Penarth Labour Alun Michael (L) Seat held. By-election in 2012 see below
Cardiff West Labour Kevin Brennan (L) Seat held
Carlisle Labour John Stevenson (C) Gain.
Carmarthen East and Dinefwr Plaid Cymru Jonathan Edwards (PC) Seat held. Incumbent Adam Price stood down
Carmarthen West and South Pembrokeshire Labour Simon Hart (C) Gain. Defeated incumbent Nick Ainger
Carshalton and Wallington Liberal Democrats Tom Brake (LD) Seat held
Castle Point Conservative Rebecca Harris (C) Seat held. Incumbent MP Bob Spink ran as an independent
Central Ayrshire Labour Brian Donohoe (L) Seat held
Central Devon Conservative Mel Stride (C) New constituency
Central Suffolk and North Ipswich Conservative Dan Poulter (C) Seat held. Incumbent Michael Lord stood down
Ceredigion Liberal Democrats Mark Williams (LD) Seat held
Charnwood Conservative Stephen Dorrell (C) Seat held
Chatham and Aylesford Labour Tracey Crouch (C) Gain. Defeated incumbent Jonathan Shaw
Cheadle Liberal Democrats Mark Hunter (LD) Seat held
Chelmsford Conservative Simon Burns (C) Seat held by incumbent for the main predecessor seat
Chelsea and Fulham Conservative Greg Hands (C) Seat held by incumbent for the main predecessor seat
Cheltenham Liberal Democrats Martin Horwood (LD) Seat held
Chesham and Amersham Conservative Cheryl Gillan (C) Seat held
City of Chester Labour Stephen Mosley (C) Gain. Defeated incumbent Christine Russell
Chesterfield Liberal Democrats Toby Perkins (L) Gain. Defeated incumbent Paul Holmes
Chichester Conservative Andrew Tyrie (C) Seat held
Chingford and Woodford Green Conservative Iain Duncan Smith (C) Seat held
Chippenham Liberal Democrats Duncan Hames (LD) New constituency
Chipping Barnet Conservative Theresa Villiers (C) Seat held
Chorley Labour Lindsay Hoyle (L) Seat held
Christchurch Conservative Christopher Chope (C) Seat held
Cities of London and Westminster Conservative Mark Field (C) Seat held
Clacton Conservative Douglas Carswell (C) New constituency; previously MP for Harwich (partial forerunner), Douglas Carswell defected to UKIP in 2014, resigned his seat and was then elected as UKIP's first ever MP at the by-election held after he defected
Cleethorpes Labour Martin Vickers (C) Gain. Defeated Incumbent Shona McIsaac
Clwyd South Labour Susan Elan Jones (L) Martyn Jones stood down
Clwyd West Conservative David Jones (C) Seat held
Coatbridge, Chryston and Bellshill Labour Tom Clarke (L) Seat held
Colchester Liberal Democrats Bob Russell (LD) Seat held
Colne Valley Labour Jason McCartney (C) Gain
Congleton Conservative Fiona Bruce (C) Seat held. Incumbent Ann Winterton stood down
Copeland Labour Jamie Reed (L) Seat held
Corby Labour Louise Bagshawe (C) Gain. Defeated Incumbent Phil Hope. Louise Mensch since marriage in June 2011. By-election in 2012, see below.
The Cotswolds Conservative Geoffrey Clifton-Brown (C) Seat held by incumbent for themain predecessor seat
Coventry North East Labour Bob Ainsworth (L) Seat held
Coventry North West Labour Geoffrey Robinson (L) Seat held
Coventry South Labour Party Jim Cunningham (L) Seat held
Crawley Labour Henry Smith (C) Gain
Crewe and Nantwich Labour Edward Timpson (C) Seat held from 2008 by-election
Croydon Central Labour Gavin Barwell (C) (notional gain based on the new boundaries) (actual hold)
Croydon North Labour Malcolm Wicks (L) Seat held. By election in 2012 on death of MP.
Croydon South Conservative Richard Ottaway (C) Seat held
Cumbernauld, Kilsyth and Kirkintilloch East Labour Gregg McClymont (L) Seat held. Incumbent Rosemary McKenna stood down
Cynon Valley Labour Ann Clwyd (L) Seat held
Dagenham and Rainham Labour Jon Cruddas (L) New constituency, previously MP for Dagenham
Darlington Labour Jenny Chapman (L) Seat held. Incumbent Alan Milburn stood down
Dartford Labour Gareth Johnson (C) Gain
Daventry Conservative Chris Heaton-Harris (C) Seat held
Delyn Labour David Hanson (L) Seat held
Denton and Reddish Labour Andrew Gwynne (L) Seat held
Derby North Labour Chris Williamson (L) Seat held. Incumbent Bob Laxton stood down
Derby South Labour Margaret Beckett (L) Seat held
Derbyshire Dales Conservative Patrick McLoughlin (C) New constituency. Previously MP for defunct West Derbyshire
Devizes Conservative Claire Perry (C) Seat held. Incumbent Michael Ancram stood down
Dewsbury Labour Simon Reevell (C) Gain. Defeated incumbent Shahid Malik (L)
Don Valley Labour Caroline Flint (L) Seat held
Doncaster Central Labour Rosie Winterton (L) Seat held
Doncaster North Labour Ed Miliband (L) Seat held
Dover Labour Charlie Elphicke (C) Gain. Defeated incumbent Gwyn Prosser
Dudley North Labour Ian Austin (L) Seat held
Dudley South Labour Chris Kelly (C) Gain.
Dulwich and West Norwood Labour Tessa Jowell (L) Seat held
Dumfries and Galloway Labour Russell Brown (L) Seat held
Dumfriesshire, Clydesdale and Tweeddale Conservative David Mundell (C) Seat held
Dundee East SNP Stewart Hosie (SNP) Seat held
Dundee West Labour Jim McGovern (L) Seat held
Dunfermline and West Fife Labour Thomas Docherty (L) (notional hold) (actual gain from Incumbent Willie Rennie (LD))
City of Durham Labour Roberta Blackman-Woods (L) Seat held
Dwyfor Meirionnydd Plaid Cymru Elfyn Llwyd (PC) New constituency. Previously MP for defunct Meirionnydd Nant Conwy
Ealing Central and Acton Labour Angie Bray (C) New constituency
Ealing North Labour Stephen Pound (L) Seat held; 1st time since 1974 that the party with the largest number of seats has not won the seat.
Ealing, Southall Labour Virendra Sharma (L) Seat held
Easington Labour Grahame Morris (L) Seat held. Incumbent John Cummings stood down
East Antrim DUP Sammy Wilson (DUP) Seat held
East Devon Conservative Hugo Swire (C) Seat held
East Dunbartonshire Liberal Democrats Jo Swinson (LD) Seat held
East Ham Labour Stephen Timms (L) Seat held
East Hampshire Conservative Damian Hinds (C) Seat held. Incumbent Michael Mates stood down
East Kilbride, Strathaven and Lesmahagow Labour Michael McCann (L) Seat held. Incumbent Adam Ingram stood down
East Londonderry DUP Gregory Campbell (DUP) Seat held
East Lothian Labour Fiona O'Donnell (L) Seat held. Incumbent Anne Picking stood down
East Renfrewshire Labour Jim Murphy (L) Seat held
East Surrey Conservative Sam Gyimah (C) Seat held. Incumbent Peter Ainsworth stood down
East Worthing and Shoreham Conservative Tim Loughton (C) Seat held
East Yorkshire Conservative Greg Knight (C) Seat held
Eastbourne Conservative Stephen Lloyd (LD) Gain. Defeated incumbent Nigel Waterson
Eastleigh Liberal Democrats Chris Huhne (LD) Seat held. Chris Huhne resigned 2013. By-election in 2013, see below
Eddisbury Conservative Stephen O'Brien (C) Seat held
Edinburgh East Labour Sheila Gilmore (L) Seat held
Edinburgh North and Leith Labour Mark Lazarowicz (L) Seat held
Edinburgh South Labour Ian Murray (L) Seat held. Incumbent Nigel Griffiths stood down.
Edinburgh South West Labour Alistair Darling (L) Seat held
Edinburgh West Liberal Democrats Michael Crockart (LD) Seat held. Incumbent John Barrett stood down
Edmonton Labour Andy Love (L) Seat held
Ellesmere Port and Neston Labour Andrew Miller (L) Seat held
Elmet and Rothwell Labour Alec Shelbrooke (C) New constituency. Notional gain based on the new boundaries of whole.
Eltham Labour Clive Efford (L) Seat held
Enfield North Labour Nick de Bois (C) Gain. Defeated incumbent Joan Ryan
Enfield, Southgate Conservative David Burrowes (C) Seat held
Epping Forest Conservative Eleanor Laing (C) Seat held
Epsom and Ewell Conservative Chris Grayling (C) Seat held
Erewash Labour Jessica Lee (C) Gain
Erith and Thamesmead Labour Teresa Pearce (L) Seat held. Incumbent John Austin stood down
Esher and Walton Conservative Dominic Raab (C) Seat held. Incumbent Ian Taylor stood down
Exeter Labour Ben Bradshaw (L) Seat held
Falkirk Labour Eric Joyce (L) then (Ind) Seat held, withdrew from his party in 2012 [3]
Fareham Conservative Mark Hoban (C) Seat held
Faversham and Mid Kent Conservative Hugh Robertson (C) Seat held
Feltham and Heston Labour Alan Keen (L) Seat held. By-election on MP's death in 2011 see below.
Fermanagh and South Tyrone Sinn Féin Michelle Gildernew (SF) Seat held
Filton and Bradley Stoke Conservative Jack Lopresti (C) New constituency
Finchley and Golders Green Conservative Mike Freer (C) Seat held. Incumbent Rudi Vis stood down
Folkestone and Hythe Conservative Damian Collins (C) Seat held. Incumbent Michael Howard stood down
Forest of Dean Conservative Mark Harper (C) Seat held
Foyle SDLP Mark Durkan (SDLP) Seat held
Fylde Conservative Mark Menzies (C) Seat held
Gainsborough Conservative Edward Leigh (C) Seat held
Garston and Halewood Labour Maria Eagle (L) Seat held
Gateshead Labour Ian Mearns (L) Seat held
Gedling Labour Vernon Coaker (L) Seat held
Gillingham and Rainham Labour Rehman Chishti (C) New constituency. Notional gain. Defeated MP for defunct Gillingham, Paul Clark
Glasgow Central Labour Anas Sarwar (L) Seat held. Incumbent Mohammad Sarwar stood down
Glasgow East Labour Margaret Curran (L) Notional hold. Incumbent John Mason (SNP) lost this seat that was taken at by-election
Glasgow North Labour Ann McKechin (L) Seat held
Glasgow North East Labour Willie Bain (L) Seat held
Glasgow North West Labour John Robertson (L) Seat held
Glasgow South Labour Tom Harris (L) Seat held
Glasgow South West Labour Ian Davidson (L) Seat held
Glenrothes Labour Lindsay Roy (L) Seat held
Gloucester Labour Richard Graham (C) Gain. Defeated incumbent Parmjit Dhanda
Gordon Liberal Democrats Malcolm Bruce (LD) Seat held
Gosport Conservative Caroline Dinenage (C) Seat held. Incumbent Peter Viggers stood down
Gower Labour Martin Caton (L) Seat held
Grantham and Stamford Conservative Nicholas Boles (C) Seat held. Incumbent Quentin Davies stood down
Gravesham Conservative Adam Holloway (C) Seat held
Great Grimsby Labour Austin Mitchell (L) Seat held
Great Yarmouth Labour Brandon Lewis (C) Gain. Defeated incumbent Tony Wright
Greenwich and Woolwich Labour Nick Raynsford (L) Seat held
Guildford Conservative Anne Milton (C) Seat held
Hackney North and Stoke Newington Labour Diane Abbott (L) Seat held
Hackney South and Shoreditch Labour Meg Hillier (L) Seat held
Halesowen and Rowley Regis Labour James Morris (C) Gain. Incumbent Sylvia Heal stood down
Halifax Labour Linda Riordan (L) Seat held
Haltemprice and Howden Conservative David Davis (C) Seat held
Halton Labour Derek Twigg (L) Seat held
Hammersmith Labour Andy Slaughter (L) New constituency. Previously MP for defunct Ealing, Acton and Shepherd's Bush
Hampstead and Kilburn Labour Glenda Jackson (L) New constituency. Previously MP for defunct Hampstead and Highgate
Harborough Conservative Edward Garnier (C) Seat held
Harlow Labour Robert Halfon (C) Gain. Defeated incumbent Bill Rammell
Harrogate and Knaresborough Liberal Democrats Andrew Jones (C) Gain
Harrow East Labour Bob Blackman (C) Gain. Defeated incumbent Tony McNulty
Harrow West Labour Gareth Thomas (L) Seat held
Hartlepool Labour Iain Wright (L) Seat held
Harwich and North Essex Conservative Bernard Jenkin (C) New constituency. Held by MP for main predecessor seat.
Hastings and Rye Labour Amber Rudd (C) Gain. Defeated incumbent Michael Foster
Havant Conservative David Willetts (C) Seat held
Hayes and Harlington Labour John McDonnell (L) Seat held
Hazel Grove Liberal Democrats Andrew Stunell (LD) Seat held
Hemel Hempstead Conservative Mike Penning (C) Seat held
Hemsworth Labour Jon Trickett (L) Seat held
Hendon Labour Matthew Offord (C) Gain. Defeated incumbent Andrew Dismore
Henley Conservative John Howell (C) Seat held
Hereford and South Herefordshire Liberal Democrats Jesse Norman (C) New constituency. Defeated incumbent for main predecessor seat.
Hertford and Stortford Conservative Mark Prisk (C) Seat held
Hertsmere Conservative James Clappison (C) Seat held
Hexham Conservative Guy Opperman (C) Seat held. Incumbent Peter Atkinson stood down
Heywood and Middleton Labour Jim Dobbin (L) Seat held
High Peak Labour Andrew Bingham (C) Gain. Defeated incumbent Tom Levitt
Hitchin and Harpenden Conservative Peter Lilley (C) Seat held
Holborn and St Pancras Labour Frank Dobson (L) Seat held
Hornchurch and Upminster Conservative Angela Watkinson (C) Seat held
Hornsey and Wood Green Liberal Democrats Lynne Featherstone (LD) Seat held
Horsham Conservative Francis Maude (C) Seat held
Houghton and Sunderland South Labour Bridget Phillipson (L) New constituency
Hove Labour Mike Weatherley (C) Gain. Defeated incumbent Celia Barlow
Huddersfield Labour Barry Sheerman (L) Seat held
Huntingdon Conservative Jonathan Djanogly (C) Seat held
Hyndburn Labour Graham Jones (L) Seat held
Ilford North Conservative Lee Scott (C) Seat held
Ilford South Labour Mike Gapes (L) Seat held
Inverclyde Labour David Cairns (L) Seat held. By-election on MP's death in 2013 see below.
Inverness, Nairn, Badenoch and Strathspey Liberal Democrats Danny Alexander (LD) Seat held
Ipswich Labour Ben Gummer (C) Gain. Defeated incumbent Chris Mole (L)
Isle of Wight Conservative Andrew Turner (C) Seat held
Islington North Labour Jeremy Corbyn (L) Seat held
Islington South and Finsbury Labour Emily Thornberry (L) Seat held
Islwyn Labour Chris Evans (L) Seat held. Incumbent Don Touhig stood down
Jarrow Labour Stephen Hepburn (L) Seat held
Keighley Labour Kris Hopkins (C) Gain
Kenilworth and Southam Conservative Jeremy Wright (C) New constituency; previously MP for Rugby and Kenilworth.
Kensington Conservative Sir Malcolm Rifkind (C) Seat held
Kettering Conservative Philip Hollobone (C) Seat held
Kilmarnock and Loudoun Labour Cathy Jamieson (L) Seat held. Incumbent Des Browne stood down
Kingston and Surbiton Liberal Democrats Ed Davey (LD) Seat held
Kingston upon Hull East Labour Karl Turner (L) Seat held. Incumbent John Prescott stood down
Kingston upon Hull North Labour Diana Johnson (L) Seat held
Kingston upon Hull West and Hessle Labour Alan Johnson (L) Seat held
Kingswood Labour Chris Skidmore (C) Gain. Defeated incumbent Roger Berry (L)
Kirkcaldy and Cowdenbeath Labour Gordon Brown (L) Seat held; outgoing Prime Minister (resigned as PM 11 May 2010)
Knowsley Labour George Howarth (L) New constituency; previously MP for Knowsley North and Sefton East
Lagan Valley DUP Jeffrey Donaldson (DUP) Seat held
Lanark and Hamilton East Labour Jimmy Hood (L) Seat held
Lancaster and Fleetwood Labour Eric Ollerenshaw (C) New constituency
Leeds Central Labour Hilary Benn (L) Seat held
Leeds East Labour George Mudie (L) Seat held
Leeds North East Labour Fabian Hamilton (L) Seat held
Leeds North West Liberal Democrats Greg Mulholland (LD) Seat held
Leeds West Labour Rachel Reeves (L) Seat held. Incumbent John Battle stood down
Leicester East Labour Keith Vaz (L) Seat held
Leicester South Labour Peter Soulsby (L) Seat held
Leicester West Labour Liz Kendall (L) Seat held. Incumbent Patricia Hewitt stood down
Leigh Labour Andrew Burnham (L) Seat held
Lewes Liberal Democrats Norman Baker (LD) Seat held
Lewisham East Labour Heidi Alexander (L) Seat held. Incumbent Bridget Prentice stood down
Lewisham West and Penge Labour Jim Dowd (L) New constituency; previously MP for Lewisham West
Lewisham, Deptford Labour Joan Ruddock (L) Seat held
Leyton and Wanstead Labour John Cryer (L) Seat held. Incumbent Harry Cohen stood down
Lichfield Conservative Michael Fabricant (C) Seat held
Lincoln Labour Karl McCartney (C) Gain. Defeated incumbent Gillian Merron (L)
Linlithgow and East Falkirk Labour Michael Connarty (L) Seat held
Liverpool, Riverside Labour Louise Ellman (L) Seat held
Liverpool, Walton Labour Steve Rotheram (L) Seat held. Incumbent Peter Kilfoyle stood down
Liverpool, Wavertree Labour Luciana Berger (L) Seat held. Incumbent Jane Kennedy stood down
Liverpool, West Derby Labour Stephen Twigg (L) Seat held. Incumbent Bob Wareing stood down
Livingston Labour Graeme Morrice (L) Seat held. Incumbent Jim Devine stood down
Llanelli Labour Nia Griffith (L) Seat held
Loughborough Labour Nicky Morgan (C) Gain. Defeated incumbent Andy Reed
Louth and Horncastle Conservative Sir Peter Tapsell (C) Seat held
Ludlow Conservative Philip Dunne (C) Seat held
Luton North Labour Kelvin Hopkins (L) Seat held
Luton South Labour Gavin Shuker (L) Seat held. Incumbent Margaret Moran stood down
Macclesfield Conservative David Rutley (C) Seat held. Incumbent Nicholas Winterton stood down
Maidenhead Conservative Theresa May (C) Seat held
Maidstone and The Weald Conservative Helen Grant (C) Seat held. Incumbent Ann Widdecombe stood down
Makerfield Labour Yvonne Fovargue (L) Seat held. Incumbent Ian McCartney stood down
Maldon Conservative John Whittingdale (C) New constituency
Manchester Central Labour Tony Lloyd (L) Seat held. By-election in 2012 see below
Manchester, Gorton Labour Sir Gerald Kaufman (L) Seat held
Manchester Withington Liberal Democrats John Leech (LD) Seat held
Mansfield Labour Alan Meale (L) Seat held
Meon Valley Conservative George Hollingbery (C) New constituency
Meriden Conservative Caroline Spelman (C) Seat held
Merthyr Tydfil and Rhymney Labour Dai Havard (L) Seat held
Mid Bedfordshire Conservative Nadine Dorries (C) Seat held
Mid Derbyshire Conservative Pauline Latham (C) New constituency
Mid Dorset and North Poole Liberal Democrats Annette Brooke (LD) Seat held
Mid Norfolk Conservative George Freeman (C) Seat held. Incumbent won new seat of Broadland.
Mid Sussex Conservative Nicholas Soames (C) Seat held
Mid Ulster Sinn Féin Martin McGuinness (SF) Seat held
Mid Worcestershire Conservative Peter Luff (C) Seat held
Middlesbrough Labour Sir Stuart Bell (L) Seat held
Middlesbrough South and East Cleveland Labour Tom Blenkinsop (L) Seat held. Seat vacant due to death of incumbent Ashok Kumar
Midlothian Labour David Hamilton (L) Seat held
Milton Keynes North Labour Mark Lancaster (C) New constituency
Milton Keynes South Labour Iain Stewart (C) New constituency
Mitcham and Morden Labour Siobhain McDonagh (L) Seat held
Mole Valley Conservative Sir Paul Beresford (C) Seat held
Monmouth Conservative David Davies (C) Seat Held
Montgomeryshire Liberal Democrats Glyn Davies (C) Gain. Defeated incumbent Lembit Öpik (LD)
Moray SNP Angus Robertson (SNP) Seat held
Morecambe and Lunesdale Labour David Morris (C) Gain. Defeated incumbent Geraldine Smith
Morley and Outwood Labour Ed Balls (L) Seat held
Motherwell and Wishaw Labour Frank Roy (L) Seat held
Na h-Eileanan an Iar (Western Isles) SNP Angus MacNeil (SNP) Seat held
Neath Labour Peter Hain (L) Seat held
New Forest East Conservative Julian Lewis (C) Seat held
New Forest West Conservative Desmond Swayne (C) Seat held
Newark Conservative Patrick Mercer (C) Seat held
Newbury Conservative Richard Benyon (C) Seat held
Newcastle upon Tyne Central Labour Chinyelu Onwurah (L) Seat held. Defeated incumbent Jim Cousins stood down
Newcastle upon Tyne East Labour Nick Brown (L) Seat held
Newcastle upon Tyne North Labour Catherine McKinnell (L) Seat held. Defeated incumbent Doug Henderson stood down
Newcastle-under-Lyme Labour Paul Farrelly (L) Seat held
Newport East Labour Jessica Morden (L) Seat held
Newport West Labour Paul Flynn (L) Seat held
Newry and Armagh Sinn Féin Conor Murphy (SF) Seat held
Newton Abbot Liberal Democrats Anne Marie Morris (C) New constituency
Normanton, Pontefract and Castleford Labour Yvette Cooper (L) Seat held
North Antrim DUP Ian Paisley, Jr. (DUP) Seat held. Incumbent Ian Paisley, Sr. stood down
North Ayrshire and Arran Labour Katy Clark (L) Seat held
North Cornwall Liberal Democrats Dan Rogerson (LD) Seat held
North Devon Liberal Democrats Nick Harvey (LD) Seat held
North Dorset Conservative Bob Walter (C) Seat held
North Down UUP Lady Sylvia Hermon (Ind) Seat held; stood as Independent Unionist in objection to party line
North Durham Labour Kevan Jones (L) Seat held
North East Bedfordshire Conservative Alistair Burt (C) Seat held
North East Cambridgeshire Conservative Steve Barclay (C) Seat held. Incumbent Malcolm Moss stood down
North East Derbyshire Labour Natascha Engel (L) Seat held
North East Fife Liberal Democrats Sir Menzies Campbell (LD) Seat held
North East Hampshire Conservative James Arbuthnot (C) Seat held
North East Hertfordshire Conservative Oliver Heald (C) Seat held
North East Somerset Conservative Jacob Rees-Mogg (C) New constituency
North Herefordshire Conservative Bill Wiggin (C) Seat held
North Norfolk Liberal Democrats Norman Lamb (LD) Seat held
North Shropshire Conservative Owen Paterson (C) Seat held
North Somerset Conservative Liam Fox (C) Seat held
North Swindon Labour Justin Tomlinson (C) Gain
North Thanet Conservative Roger Gale (C) Seat held
North Tyneside Labour Mary Glindon (L) Seat held. Incumbent Stephen Byers stood down
North Warwickshire Labour Dan Byles (C) Gain. Defeated incumbent Mike O’Brien
North West Cambridgeshire Conservative Shailesh Vara (C) Seat held
North West Durham Labour Pat Glass (L) Seat held. Incumbent Hilary Armstrong stood down; Seat held
North West Hampshire Conservative Sir George Young, Bt (C) Seat held
North West Leicestershire Labour Andrew Bridgen (C) Gain
North West Norfolk Conservative Henry Bellingham (C) Seat held
North Wiltshire Conservative James Gray (C) Seat held
Northampton North Labour Michael Ellis (C) Gain. Defeated incumbent Sally Keeble
Northampton South Labour Brian Binley (C) (notional gain based on the new boundaries) (actual hold)
Norwich North Conservative Chloe Smith (C) Seat held from 2009 by-election
Norwich South Labour Simon Wright (LD) Gain. Defeated incumbent Charles Clarke (L)
Nottingham East Labour Chris Leslie (L) Seat held. Incumbent John Heppell stood down
Nottingham North Labour Graham Allen (L) Seat held
Nottingham South Labour Lilian Greenwood (L) Seat held. Incumbent Alan Simpson stood down
Nuneaton Labour Marcus Jones (C) Gain
Ochil and South Perthshire Labour Gordon Banks (L) Seat held
Ogmore Labour Huw Irranca-Davies (L) Seat held
Old Bexley and Sidcup Conservative James Brokenshire (C) Seat held
Oldham East and Saddleworth Labour Phil Woolas (L) Seat held; on 5 November 2010 election declared void on petition causing a by-election
Oldham West and Royton Labour Michael Meacher (L) Seat held
Orkney and Shetland Liberal Democrats Alistair Carmichael (LD) Seat held
Orpington Conservative Jo Johnson (C) Seat held. Incumbent John Horam stood down
Oxford East Labour Andrew Smith (L) Seat held
Oxford West and Abingdon Liberal Democrats Nicola Blackwood (C) Gain. Defeated incumbent Evan Harris (LD)
Paisley and Renfrewshire North Labour James Sheridan (L) Seat held
Paisley and Renfrewshire South Labour Douglas Alexander (L) Seat held
Pendle Labour Andrew Stephenson (C) Gain. Defeated incumbent Gordon Prentice (L)
Penistone and Stocksbridge Labour Angela Smith (L) Seat held
Penrith and The Border Conservative Rory Stewart (C) Seat held. Incumbent David Maclean stood down
Perth and North Perthshire SNP Pete Wishart (SNP) Seat held
Peterborough Conservative Stewart Jackson (C) Seat held
Plymouth, Moor View Labour Alison Seabeck (L) Seat held
Plymouth, Sutton and Devonport Labour Oliver Colvile (C) New constituency
Pontypridd Labour Owen Smith (L) Seat held. Incumbent Kim Howells stood down
Poole Conservative Robert Syms (C) Seat held
Poplar and Limehouse Labour Jim Fitzpatrick (L) Seat held
Portsmouth North Labour Penny Mordaunt (C) Gain. Defeated incumbent Sarah McCarthy-Fry
Portsmouth South Liberal Democrats Mike Hancock (LD) Seat held
Preseli Pembrokeshire Conservative Stephen Crabb (C) Seat held
Preston Labour Mark Hendrick (L) Seat held
Pudsey Labour Stuart Andrew (C) Gain
Putney Conservative Justine Greening (C) Seat held
Rayleigh and Wickford Conservative Mark Francois (C) Seat held
Reading East Conservative Rob Wilson (C) Seat held
Reading West Labour Alok Sharma (C) Gain
Redcar Labour Ian Swales (LD) Gain. Defeated incumbent Vera Baird (L)
Redditch Labour Karen Lumley (C) Gain. Defeated incumbent Jacqui Smith (L)
Reigate Conservative Crispin Blunt (C) Seat held
Rhondda Labour Chris Bryant (L) Seat held
Ribble Valley Conservative Nigel Evans (C) Seat held
Richmond (Yorks) Conservative William Hague (C) Seat held
Richmond Park Liberal Democrats Zac Goldsmith (C) Gain. Defeated incumbent Susan Kramer (LD)
Rochdale Liberal Democrats Simon Danczuk (L) Gain. Defeated incumbent Paul Rowen (LD).
Rochester and Strood Conservative Mark Reckless (C) New constituency. Notional hold. Bob Marshall-Andrews declined to contest the new seat. Mark Reckless defected to UKIP, resigned his seat and was then elected as the second UKIP Member at the by-election triggered by his resignation
Rochford and Southend East Conservative James Duddridge (C) Seat held
Romford Conservative Andrew Rosindell (C) Seat held
Romsey and Southampton North Liberal Democrats Caroline Nokes (C) New constituency. Incumbent for main predecessor seat defeated.
Ross, Skye and Lochaber Liberal Democrats Charles Kennedy (LD) Seat held
Rossendale and Darwen Labour Jake Berry (C) Gain. Defeated incumbent Janet Anderson (L)
Rother Valley Labour Kevin Barron (L) Seat held
Rotherham Labour Denis MacShane (L) Seat held. By-election held in 2012, see below.
Rugby Labour Mark Pawsey (C) New constituency; incumbent for main predecessor did not stand here
Ruislip, Northwood and Pinner Conservative Nick Hurd (C) Seat held
Runnymede and Weybridge Conservative Philip Hammond (C) Seat held
Rushcliffe Conservative Kenneth Clarke (C) Seat held
Rutherglen and Hamilton West Labour Tom Greatrex (L) Seat held. Incumbent Tommy McAvoy stood down
Rutland and Melton Conservative Alan Duncan (C) Seat held
Saffron Walden Conservative Sir Alan Haselhurst (C) Seat held
Salford and Eccles Labour Hazel Blears (L) Seat held
Salisbury Conservative John Glen (C) Seat held. Incumbent Robert Key stood down
Scarborough and Whitby Conservative Robert Goodwill (C) Seat held
Scunthorpe Labour Nic Dakin (L) Seat held. Incumbent Elliot Morley stood down
Sedgefield Labour Phil Wilson (L) Seat held
Sefton Central Labour Bill Esterson (L) New constituency; incumbent for main predecessor did not stand here
Selby and Ainsty Conservative Nigel Adams (C) New constituency
Sevenoaks Conservative Michael Fallon (C) Seat held
Sheffield Central Labour Paul Blomfield (L) Seat held. Incumbent Richard Caborn stood down
Sheffield South East Labour Clive Betts (L) Seat held
Sheffield, Brightside and Hillsborough Labour David Blunkett (L) Seat held
Sheffield, Hallam Liberal Democrats Nick Clegg (LD) Seat held; party leader; Appointed Deputy Prime Minister on 12 May
Sheffield, Heeley Labour Meg Munn (L) Seat held
Sherwood Labour Mark Spencer (C) Gain
Shipley Conservative Philip Davies (C) Seat held
Shrewsbury and Atcham Conservative Daniel Kawczynski (C) Seat held
Sittingbourne and Sheppey Conservative Gordon Henderson (C) Seat held. Incumbent Derek Wyatt stood down
Skipton and Ripon Conservative Julian Smith (C) Seat held. Incumbent David Curry stood down
Sleaford and North Hykeham Conservative Stephen Phillips (C) Seat held. Incumbent Douglas Hogg stood down
Slough Labour Fiona Mactaggart (L) Seat held
Solihull Conservative Lorely Burt (LD) Seat held; notional gain based on the new boundaries based on boundary change
Somerton and Frome Liberal Democrats David Heath (LD) Seat held
South Antrim Democratic Unionist Party William McCrea (DUP) Seat held
South Basildon and East Thurrock Labour Stephen Metcalfe (C) New constituency. Incumbent for main predecessor seat defeated
South Cambridgeshire Conservative Andrew Lansley (C) Seat held
South Derbyshire Labour Heather Wheeler (C) Gain
South Dorset Labour Richard Drax (C) Gain. Defeated incumbent Jim Knight
South Down SDLP Margaret Ritchie (SDLP) Seat held. Incumbent Eddie McGrady stood down
South East Cambridgeshire Conservative Jim Paice (C) Seat held
South East Cornwall Liberal Democrats Sheryll Murray (C) Gain
South Holland and The Deepings Conservative John Hayes (C) Seat held
South Leicestershire Conservative Andrew Robathan (C) New constituency. Seat held by incumbent for main predecessor seat
South Norfolk Conservative Richard Bacon (C) Seat held
South Northamptonshire Conservative Andrea Leadsom (C) New constituency
South Ribble Labour Lorraine Fullbrook (C) Gain. Defeated incumbent David Borrow
South Shields Labour David Miliband (L) Seat held
South Staffordshire Conservative Gavin Williamson (C) Seat held. Incumbent Sir Patrick Cormack stood down
South Suffolk Conservative Tim Yeo (C) Seat held
South Swindon Labour Robert Buckland (C) Gain. Defeated incumbent Anne Snelgrove
South Thanet Labour Laura Sandys (C) Gain. Defeated incumbent Stephen Ladyman
South West Bedfordshire Conservative Andrew Selous (C) Seat held
South West Devon Conservative Gary Streeter (C) Seat held
South West Hertfordshire Conservative David Gauke (C) Seat held
South West Norfolk Conservative Elizabeth Truss (C) Seat held. Incumbent Christopher Fraser stood down
South West Surrey Conservative Jeremy Hunt (C) Seat held
South West Wiltshire Conservative Andrew Murrison (C) Seat held
Southampton, Itchen Labour John Denham (L) Seat held
Southampton, Test Labour Alan Whitehead (L) Seat held
Southend West Conservative David Amess (C) Seat held
Southport Liberal Democrats John Pugh (LD) Seat held
Spelthorne Conservative Kwasi Kwarteng (C) Seat held. Incumbent David Wilshire stood down
St Albans Conservative Anne Main (C) Seat held
St Austell and Newquay Liberal Democrats Steve Gilbert (LD) New constituency
St Helens North Labour Dave Watts (L) Seat held
St Helens South and Whiston Labour Shaun Woodward (L) Seat held
St Ives Liberal Democrats Andrew George (LD) Seat held
Stafford Labour Jeremy Lefroy (C) Gain. Defeated incumbent David Kidney
Staffordshire Moorlands Conservative Karen Bradley (C) Gain. Defeated incumbent Charlotte Atkins  (L) (notional hold)
Stalybridge and Hyde Labour Jonathan Reynolds (L) Seat held. Incumbent James Purnell stood down
Stevenage Labour Stephen McPartland (C) Gain
Stirling Labour Anne McGuire (L) Seat held
Stockport Labour Ann Coffey (L) Seat held
Stockton North Labour Alex Cunningham (L) Seat held. Incumbent Frank Cook stood down
Stockton South Labour James Wharton (C) Gain. Defeated incumbent Dari Taylor
Stoke-on-Trent Central Labour Tristram Hunt (L) Seat held. Incumbent Mark Fisher stood down
Stoke-on-Trent North Labour Joan Walley (L) Seat held
Stoke-on-Trent South Labour Rob Flello (L) Seat held
Stone Conservative Bill Cash (C) Seat held
Stourbridge Labour Margot James (C) Gain. Defeated incumbent Lynda Waltho
Strangford DUP Jim Shannon (DUP) Seat held
Stratford-on-Avon Conservative Nadhim Zahawi (C) Seat held. Incumbent John Maples stood down
Streatham Labour Chuka Umunna (L) Seat held. Incumbent Keith Hill stood down
Stretford and Urmston Labour Kate Green (L) Seat held. Incumbent Beverley Hughes stood down
Stroud Labour Neil Carmichael (C) Gain. Defeated incumbent David Drew
Suffolk Coastal Conservative Therese Coffey (C) Seat held. Incumbent John Gummer stood down
Sunderland Central Labour Julie Elliott (L) New constituency; incumbent for main predecessor did not stand here
Surrey Heath Conservative Michael Gove (C) Seat held
Sutton and Cheam Liberal Democrats Paul Burstow (LD) Seat held
Sutton Coldfield Conservative Andrew Mitchell (C) Seat held
Swansea East Labour Sian James (L) Seat held
Swansea West Labour Geraint Davies (L) Seat held. Incumbent Alan Williams stood down
Tamworth Labour Christopher Pincher (C) Gain. Defeated incumbent Brian Jenkins (L)
Tatton Conservative George Osborne (C) Seat held
Taunton Deane Liberal Democrats Jeremy Browne (LD) New constituency. Seat held by incumbent for main predecessor seat
Telford Labour David Wright (L) Seat held
Tewkesbury Conservative Laurence Robertson (C) Seat held
Thirsk and Malton Conservative Anne McIntosh (C) New constituency; previously MP for Vale of York. The poll was the only one postponed
Not a by-election as without a new campaign round. This was due to the death of the UKIP candidate.
Thornbury and Yate Liberal Democrats Steve Webb (LD) New constituency; previously MP for Northavon
Thurrock Labour Jackie Doyle-Price (C) Seat held. Incumbent Andrew MacKinlay (L) stood down
Tiverton and Honiton Conservative Neil Parish (C) Seat held. Incumbent Angela Browning stood down
Tonbridge and Malling Conservative Sir John Stanley (C) Seat held
Tooting Labour Sadiq Khan (L) Seat held
Torbay Liberal Democrats Adrian Sanders (LD) Seat held
Torfaen Labour Paul Murphy (L) Seat held
Torridge and West Devon Conservative Party Geoffrey Cox (C) Seat held
Totnes Conservative Sarah Wollaston (C) Seat held. Incumbent Anthony Steen stood down
Tottenham Labour David Lammy (L) Seat held
Truro and Falmouth Liberal Democrats Sarah Newton (C) New constituency; incumbent for main predecessor did not stand here
Tunbridge Wells Conservative Greg Clark (C) Seat held
Twickenham Liberal Democrats Vince Cable (LD) Seat held
Tynemouth Labour Alan Campbell (L) Seat held
Upper Bann DUP David Simpson (DUP) Seat held
Uxbridge and South Ruislip Conservative John Randall (C) Seat held by incumbent for main predecessor seat
Vale of Clwyd Labour Chris Ruane (L) Seat held
Vale of Glamorgan Labour Alun Cairns (C) Gain
Vauxhall Labour Kate Hoey (L) Seat held
Wakefield Labour Mary Creagh (L) Seat held
Wallasey Labour Angela Eagle (L) Seat held
Walsall North Labour David Winnick (L) Seat held
Walsall South Labour Valerie Vaz (L) Seat held. Incumbent Bruce George stood down
Walthamstow Labour Stella Creasy (L) Seat held. Incumbent Neil Gerrard stood down
Wansbeck Labour Ian Lavery (L) Seat held. Incumbent Denis Murphy stood down
Wantage Conservative Ed Vaizey (C) Seat held
Warley Labour John Spellar (L) Seat held
Warrington North Labour Helen Jones (L) Seat held
Warrington South Labour David Mowat (C) Gain
Warwick and Leamington Labour Chris White (C) Gain. Defeated incumbent James Plaskitt
Washington and Sunderland West Labour Sharon Hodgson (L) New constituency; previously MP for Gateshead East and Washington West
Watford Labour Richard Harrington (C) Gain. Defeated incumbent Claire Ward
Waveney Labour Peter Aldous (C) Gain. Defeated incumbent Bob Blizzard
Wealden Conservative Charles Hendry (C) Seat held
Weaver Vale Labour Graham Evans (C) Gain
Wellingborough Conservative Peter Bone (C) Seat held
Wells Conservative Tessa Munt (LD) Gain. Defeated incumbent David Heathcoat-Amory (C)
Welwyn Hatfield Conservative Grant Shapps (C) Seat held
Wentworth and Dearne Labour John Healey (L) New constituency. Held by MP for main predecessor seat
West Aberdeenshire and Kincardine Liberal Democrats Sir Robert Smith, Bt (LD) Seat held
West Bromwich East Labour Tom Watson (L) Seat held
West Bromwich West Labour Adrian Bailey (L) Seat held
West Dorset Conservative Oliver Letwin (C) Seat held
West Dunbartonshire Labour Gemma Doyle (L) Seat held. Incumbent John McFall stood down
West Ham Labour Lyn Brown (L) Seat held
West Lancashire Labour Rosie Cooper (L) Seat held
West Suffolk Conservative Matt Hancock (C) Seat held. Incumbent Richard Spring stood down
West Tyrone Sinn Féin Pat Doherty (SF) Seat held
West Worcestershire Conservative Harriett Baldwin (C) Seat held. Incumbent Sir Michael Spicer stood down
Westminster North Labour Karen Buck (L) New constituency. Held by incumbent for main predecessor seat.
Westmorland and Lonsdale Liberal Democrats Tim Farron (LD) Seat held
Weston-Super-Mare Conservative John Penrose (C) Seat held
Wigan Labour Lisa Nandy (L) Seat held. Incumbent Neil Turner stood down
Wimbledon Conservative Stephen Hammond (C) Seat held
Winchester Liberal Democrats Steve Brine (C) Gain.
Windsor Conservative Adam Afriyie (C) Seat held
Wirral South Labour Alison McGovern (L) Seat held. Incumbent Ben Chapman stood down
Wirral West Conservative Esther McVey (C) Gain
Witham Conservative Priti Patel (C) New constituency; incumbent for main predecessor did not stand here
Witney Conservative David Cameron (C) Seat held; Appointed Prime Minister on 11 May
Woking Conservative Jonathan Lord (C) Seat held. Incumbent Humfrey Malins stood down
Wokingham Conservative John Redwood (C) Seat held
Wolverhampton North East Labour Emma Reynolds (L) Seat held. Incumbent Ken Purchase stood down
Wolverhampton South East Labour Pat McFadden (L) Seat held
Wolverhampton South West Labour Paul Uppal (C) Gain. Defeated incumbent Rob Marris (L)
Worcester Labour Robin Walker (C) Gain. Defeated incumbent Michael John Foster (L)
Workington Labour Tony Cunningham (L) Seat held
Worsley and Eccles South Labour Barbara Keeley (L) Seat held by incumbent for main predecessor seat
Worthing West Conservative Sir Peter Bottomley (C) Seat held
The Wrekin Conservative Mark Pritchard (C) Seat held
Wrexham Labour Ian Lucas (L) Seat held
Wycombe Conservative Steven Baker (C) Seat held. Incumbent Paul Goodman stood down
Wyre and Preston North Conservative Ben Wallace (C) New constituency; previously MP for Lancaster and Wyre
Wyre Forest Health Concern Mark Garnier (C) Gain. Defeated incumbent Richard Taylor
Wythenshawe and Sale East Labour Paul Goggins (L) Seat held
Yeovil Liberal Democrats David Laws (LD) Seat held
Ynys Môn (Anglesey) Labour Albert Owen (L) Seat held
York Central Labour Hugh Bayley (L) Seat held by incumbent for main predecessor seat
York Outer Liberal Democrats Julian Sturdy (C) New constituency; incumbent for main predecessor did not stand here

Changes and by-elections

After a general election, changes can occur in the composition of the House of Commons. This happens as a result of the election of Deputy Speakers, by-elections, defections, suspensions or removal of whip.

Technically, MPs cannot resign. However, they can effectively do so by requesting to be appointed as the Crown Steward and Bailiff of the Manor of Northstead or the Crown Steward and Bailiff of the three Chiltern Hundreds of Stoke, Desborough and Burnham, which vacates their seat.

The net outcome of all changes at the dissolution of Parliament resulted in four fewer Conservative MPs, two fewer Labour MPs, one fewer Liberal Democrat MP, four more independent MPs, the addition of one Respect MP and the addition of two UKIP MPs. This resulted in a reduction of the actual government majority from eighty-three to seventy-three. Both Respect and UKIP were previously unrepresented in the fifty-fifth Parliament. This was the first time that candidates standing for UKIP had been elected to the House of Commons.

Deputy Speakers

Although Deputy Speakers do not resign from their parties, they cease to vote (except to break ties) and they do not participate in party-political activity until the next election.


Main article: List of United Kingdom by-elections (1979–present) § 2010-2015 Parliament

By-elections are held for seats that become vacant. If a vacancy is created within a certain period of time before the next general election, then a by-election may not be held, with that seat being left vacant for the remainder of the Parliament.[6]

By-election Date Incumbent Party Cause Winner Party
Oldham East and Saddleworth 13 January 2011 Phil Woolas Labour General election result declared null and void due to illegal election practices during the campaign.[7][8] Debbie Abrahams Labour
Barnsley Central 3 March 2011 Eric Illsley Labour Resigned shortly before receiving a prison sentence for his part in the parliamentary expenses scandal. Dan Jarvis[9] Labour
Leicester South 5 May 2011 Peter Soulsby Labour Resigned to contest the Leicester mayoralty. Jon Ashworth Labour
Belfast West 9 June 2011 Gerry Adams Sinn Féin Resigned to contest Louth in the 2011 Irish general election. Paul Maskey Sinn Féin
Inverclyde 30 June 2011 David Cairns Labour Death from acute pancreatitis Iain McKenzie Labour
Feltham and Heston 15 December 2011 Alan Keen Labour Death (cancer) Seema Malhotra Labour Co-op
Bradford West 29 March 2012 Marsha Singh Labour Resignation (ill health) George Galloway Respect
Corby 15 November 2012 Louise Mensch Conservative Resigned to relocate to the United States. Andy Sawford[10] Labour
Manchester Central Tony Lloyd Labour Resigned to contest the Police and Crime Commissioner elections. Lucy Powell[10] Labour Co-op
Cardiff South and Penarth Alun Michael Labour Stephen Doughty Labour
Croydon North 29 November 2012 Malcolm Wicks Labour Death (cancer) Steve Reed Labour Co-op
Middlesbrough Stuart Bell Labour Death (cancer)[11] Andy McDonald Labour
Rotherham Denis MacShane Labour Resigned after parliamentary inquiry into his falsification of expenses claims.[12] Sarah Champion Labour
Eastleigh 28 February 2013 Chris Huhne Liberal Democrats Resigned shortly before receiving a prison sentence for perverting the course of justice. Mike Thornton Liberal Democrats
Mid Ulster 7 March 2013 Martin McGuinness Sinn Féin Resigned to end his dual mandate with the Northern Ireland Assembly. Francie Molloy Sinn Féin
South Shields 2 May 2013 David Miliband Labour Resigned to become head of the International Rescue Committee Emma Lewell-Buck Labour
Wythenshawe and Sale East 13 February 2014 Paul Goggins Labour Death (brain haemorrhage) Mike Kane Labour
Newark 5 June 2014 Patrick Mercer Conservative Resignation after allegedly asking questions in Parliament for money. Robert Jenrick Conservative
Heywood and Middleton 9 October 2014 Jim Dobbin Labour Co-op Death (acute alcohol toxicity) Liz McInnes Labour
Clacton Douglas Carswell Conservative Resigned to recontest their seats for UKIP. Douglas Carswell UKIP
Rochester and Strood 20 November 2014 Mark Reckless Conservative Mark Reckless UKIP

Defections, suspensions and removal of whip

In some situations, the label which MPs sit in the House of Commons under can change. When this happens, MPs often become independents.

Name Date From To Constituency Reason
Eric Illsley 19 May 2010 Labour Independent Barnsley Central Withdrawn from Labour whip after being charged with false accounting as part of the parliamentary expenses scandal.[2] Resigned seat on 8 February 2011.
Denis MacShane 14 October 2010 Labour Independent Rotherham Suspended from Labour after police investigation.[13]
4 July 2012 Independent Labour Reinstated.[14] Resigned from Parliament on 2 November.
Eric Joyce 23 February 2012 Labour Independent Falkirk Suspended from Labour after arrest on suspicion of assault.[15] Later resigned from Labour entirely.
Nadine Dorries 6 November 2012 Conservative Independent Mid Bedfordshire Suspended from the Conservatives after her unauthorised participation in a TV programme.[16]
8 May 2013 Independent Conservative Reinstated.[17]
Patrick Mercer 31 May 2013 Conservative Independent Newark Resigned from Conservatives after being the subject of a journalistic sting exploring his conduct regarding lobbying companies.[18] Resigned seat on 29 April 2014.[19]
Mike Hancock 3 June 2013 Liberal Democrats Independent Portsmouth South Resigned whip ahead of court case involving sexual offence allegations.[19] Suspended from party on 22 January 2014[20] and resigned from it completely on 17 September.[21]
David Ward 17 July 2013 Liberal Democrats Independent Bradford East Suspended from party after questioning the existence of Israel and later refusing to apologise.[22][23]
13 September 2013 Independent Liberal Democrats Reinstated.[24]
Nigel Evans 10 September 2013 Conservative Independent Ribble Valley Resigned as First Deputy Chairman of Ways and Means after being charged with sexual offences. Did not seek return of the Conservative whip.[4]
28 April 2014 Independent Conservative Rejoined party after being cleared of all charges.[25]
Jack Straw 22 February 2015 Labour Independent Blackburn Suspended from party after allegations that they offered access to policy-makers and ambassadors in return for payment.[26]
Malcolm Rifkind 23 February 2015 Conservative Independent Kensington

See also


  1. ^ "Current State of the Parties: Dissolution of Parliament". www.Parliament.uk. Retrieved 7 May 2015.
  2. ^ a b "Labour MP charged over expenses". BBC News. 19 May 2010. Retrieved 19 May 2010.
  3. ^ "Labour suspends MP Eric Joyce after Commons 'assault'". BBC News. 23 February 2012. Retrieved 15 March 2013.
  4. ^ a b "Nigel Evans to carry on as independent MP despite sex charges". BBC News. 11 September 2013. Retrieved 11 September 2013.
  5. ^ "Conservative MP Eleanor Laing elected deputy Speaker". BBC News. 16 October 2013. Retrieved 17 October 2013.
  6. ^ "Tory MP Douglas Carswell defects to UKIP and forces by-election". BBC News. 28 August 2014. Retrieved 21 November 2014.
  7. ^ Curtis, Polly (5 November 2010). "Phil Woolas immigration leaflets case: high court orders election re-run in Oldham East". The Guardian. London. Retrieved 5 November 2010.
  8. ^ Department of the Official Report (Hansard), House of Commons, Westminster. "House of Commons Hansard, 8 November 2010: Column 1". Publications.parliament.uk. Retrieved 11 June 2011.((cite web)): CS1 maint: multiple names: authors list (link)
  9. ^ "Lib Dems slump to sixth as Labour win Barnsley poll". BBC News. 4 March 2011.
  10. ^ a b Eaton, George (6 August 2012). "Labour is set for three by-election victories". New Statesman. Retrieved 17 October 2013.
  11. ^ "MP Bell dies after cancer battle". Bradford Telegraph & Argus. 13 October 2012. Retrieved 13 October 2012.
  12. ^ Watt, Holly (2 November 2012). "MPs' expenses scandal: Denis MacShane resigns". The Daily Telegraph. London. Retrieved 21 May 2013.
  13. ^ Siddique, Haroon (14 October 2010). "Labour withdraws whip from former minister facing police inquiry". The Guardian. London. Retrieved 23 October 2010.
  14. ^ "Denis MacShane MP Rejoins Labour Group". English Elections. Retrieved 21 May 2013.
  15. ^ "Labour suspends MP Eric Joyce after Commons 'assault'". BBC News. 23 February 2012. Retrieved 23 February 2012.
  16. ^ "Nadine Dorries suspended as Tory MP in I'm a Celebrity row". BBC News. 6 November 2012. Retrieved 8 November 2012.
  17. ^ "Nadine Dorries reinstated as Conservative MP". BBC News. 8 May 2013. Retrieved 8 May 2013.
  18. ^ Syal, Rajeev (31 May 2013). "Tory MP Patrick Mercer resigns from party after lobbying sting". The Guardian. London. Retrieved 31 May 2013.
  19. ^ a b "Former Tory MP Mercer resigns after Commons suspension". BBC News. 29 April 2014. Retrieved 29 April 2014.
  20. ^ "MP Mike Hancock suspended by Lib Dems". BBC News. 22 January 2014. Retrieved 14 February 2014.
  21. ^ "Andy McSmith's Diary: One Lib Dem MP the party can live without". The Independent. 18 September 2014. Retrieved 21 November 2014.
  22. ^ Syal, Rajeev (18 July 2013). "Lib Dems withdraw party whip from MP David Ward over Israel comment". The Guardian. London. Retrieved 22 July 2013.
  23. ^ O'Donoghue, Gary (18 July 2013). "MP David Ward has Lib Dem whip withdrawn over Israel comment". BBC News. Retrieved 22 July 2013.
  24. ^ "Lib Dems get Israel warning". The Jewish Chronicle. 17 September 2013. Retrieved 17 October 2013.
  25. ^ "MP Nigel Evans rejoins Conservatives". BBC News Online. 28 April 2014. Retrieved 6 June 2014.
  26. ^ "Sir Malcolm Rifkind and Jack Straw have whip withdrawn over 'sting'". BBC News. 23 February 2015. Retrieved 23 February 2015.