# Windsor and Maidenhead Borough Council elections

Windsor and Maidenhead Borough Council is the local authority for the Royal Borough of Windsor and Maidenhead, which is a unitary authority in Berkshire, England. Until 1 April 1998 it was a non-metropolitan district. Elections are held every four years. Since the last boundary changes in 2019 there have been 41 councillors elected from 19 wards.

## Council elections
### Non-metropolitan district elections

* 1973 Windsor and Maidenhead Borough Council election
* 1976 Windsor and Maidenhead Borough Council election
* 1979 Windsor and Maidenhead Borough Council election
* 1983 Windsor and Maidenhead Borough Council election (New ward boundaries)
* 1987 Windsor and Maidenhead Borough Council election
* 1991 Windsor and Maidenhead Borough Council election (Borough boundary changes took place but the number of seats remained the same)
* 1995 Windsor and Maidenhead Borough Council election

### Unitary authority elections

* 1997 Windsor and Maidenhead Borough Council election
* 2000 Windsor and Maidenhead Borough Council election
* 2003 Windsor and Maidenhead Borough Council election (New ward boundaries reduced the number of seats by 1)
* 2007 Windsor and Maidenhead Borough Council election
* 2011 Windsor and Maidenhead Borough Council election
* 2015 Windsor and Maidenhead Borough Council election
* 2019 Windsor and Maidenhead Borough Council election (New Ward Boundaries and significant reduction in number of seats)
* 2023 Windsor and Maidenhead Borough Council election

## Borough result maps

* 2007 results map
* 2023 results map

## By-election results
### 1997–2000

Trinity By-Election 18 September 1997 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democrats | | 682 | 51.6 | −1.5 |
| | Conservative | | 502 | 38.0 | +5.0 |
| | Labour | | 103 | 7.8 | −3.1 |
| | Independent | | 25 | 1.9 | +1.9 |
| | Independent | | 10 | 0.8 | +0.8 |
| Majority | Majority | Majority | 180 | 13.6 | |
| Turnout | Turnout | Turnout | 1,322 | 30.0 | |
| | Liberal Democrats hold | Liberal Democrats hold | Swing | | |
Oldfield By-Election 21 May 1998 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | | 737 | 46.7 | +1.8 |
| | Labour | | 539 | 34.2 | −0.6 |
| | Liberal Democrats | | 301 | 19.1 | −1.2 |
| Majority | Majority | Majority | 198 | 12.5 | |
| Turnout | Turnout | Turnout | 1,577 | 26.4 | |
| | Conservative hold | Conservative hold | Swing | | |
Park By-Election 4 June 1998 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democrats | | 887 | 52.3 | −4.6 |
| | Conservative | | 724 | 42.6 | +7.7 |
| | Labour | | 88 | 5.2 | −3.1 |
| Majority | Majority | Majority | 163 | 9.7 | |
| Turnout | Turnout | Turnout | 1,699 | 34.0 | |
| | Liberal Democrats hold | Liberal Democrats hold | Swing | | |
Eton Wick By-Election 26 November 1998 :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | | 507 | 51.5 | +15.3 |
| | Conservative | | 347 | 35.3 | −1.2 |
| | Liberal Democrats | | 95 | 9.7 | −18.2 |
| | Independent | | 35 | 3.6 | +3.6 |
| Majority | Majority | Majority | 160 | 16.2 | |
| Turnout | Turnout | Turnout | 984 | 50.8 | |
| | Labour gain from Conservative | Labour gain from Conservative | Swing | | |
Sunninghill By-Election 25 March 1999 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | | 821 | 51.2 | −4.8 |
| | Liberal Democrats | | 783 | 48.8 | +18.3 |
| Majority | Majority | Majority | 38 | 2.4 | |
| Turnout | Turnout | Turnout | 1,604 | 27.5 | |
| | Conservative hold | Conservative hold | Swing | | |

### 2000–2010

Sunninghill By-Election 6 December 2001 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | David Hilton | 752 | 51.1 | −7.0 |
| | Liberal Democrats | Enid Cross | 660 | 44.8 | +2.9 |
| | Labour | Kevin Cochrane | 60 | 4.1 | +4.1 |
| Majority | Majority | Majority | 92 | 6.3 | |
| Turnout | Turnout | Turnout | 1,472 | | |
| | Conservative hold | Conservative hold | Swing | | |
Clewer North By-Election 3 October 2002 :
| Party | Party | Candidate | Votes | % | ±% |
| | Independent | Eileen Penfold | 599 | 69.9 | +9.9 |
| | Labour | Andrew Foakes | 258 | 30.1 | +10.7 |
| Majority | Majority | Majority | 341 | 39.8 | |
| Turnout | Turnout | Turnout | 857 | 18.1 | |
| | Independent hold | Independent hold | Swing | | |
Clewer North By-Election 31 October 2003 :
| Party | Party | Candidate | Votes | % | ±% |
| | Independent | John Penfold | 544 | 42.2 | +16.5 |
| | Conservative | Peter Smith | 325 | 25.2 | +13.0 |
| | Liberal Democrats | Helen Salmon | 298 | 23.1 | +15.8 |
| | Labour | Andrew Foakes | 121 | 9.4 | +2.4 |
| Majority | Majority | Majority | 219 | 17.0 | |
| Turnout | Turnout | Turnout | 1,288 | 22.5 | |
| | Independent hold | Independent hold | Swing | | |
Horton and Wraysbury By-Election 16 June 2005 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Colin Rayner | 595 | 54.4 | +16.9 |
| | Independent | Ewan Larcombe | 499 | 45.6 | −11.9 |
| Majority | Majority | Majority | 96 | 8.8 | |
| Turnout | Turnout | Turnout | 1,094 | | |
| | Conservative gain from Independent | Conservative gain from Independent | Swing | | |
Eton Wick By-Election 22 September 2005 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Stephen Smith | 405 | 48.9 | +11.8 |
| | Labour | Marie Wilson | 250 | 30.1 | −32.8 |
| | Independent | Peter Lawless | 115 | 13.9 | +13.9 |
| | Liberal Democrats | Moray Barclay | 59 | 7.1 | +7.1 |
| Majority | Majority | Majority | 155 | 18.8 | |
| Turnout | Turnout | Turnout | 829 | 49.0 | |
| | Conservative gain from Labour | Conservative gain from Labour | Swing | | |
Sunninghill & South Ascot By-Election 6 April 2006 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | John Story | 1,039 | 60.5 | +12.2 |
| | Liberal Democrats | Enid Cross | 679 | 39.5 | +2.6 |
| Majority | Majority | Majority | 360 | 21.0 | |
| Turnout | Turnout | Turnout | 1,718 | 38.0 | |
| | Conservative hold | Conservative hold | Swing | | |
Datchet By-Election 4 October 2007 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Gary Muir | 799 | 63.8 | −8.6 |
| | Liberal Democrats | Tim O'Flynn | 352 | 28.1 | +12.0 |
| | Independent | Ewan Larcombe | 102 | 8.1 | +8.1 |
| Majority | Majority | Majority | 447 | 35.7 | |
| Turnout | Turnout | Turnout | 1,253 | 35.8 | |
| | Conservative hold | Conservative hold | Swing | | |

### 2011–2015

Park By-Election 6 January 2011 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Natahsha Lavender | 637 | 64.4 | +2.2 |
| | Liberal Democrats | Richard Fagence | 156 | 15.8 | −18.0 |
| | Labour | Laura Binnie | 149 | 15.1 | +11.0 |
| | Independent | Derek Prime | 47 | 4.8 | +4.8 |
| Majority | Majority | Majority | 481 | 48.6 | |
| Turnout | Turnout | Turnout | 989 | 27 | |
| | Conservative hold | Conservative hold | Swing | | |
Eton and Castle By-Election 11 August 2011 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democrats | George Fussey | 208 | 47.4 | +19.6 |
| | Conservative | Adam Demeter | 182 | 41.5 | −23.7 |
| | Labour | George Davidson | 32 | 7.3 | +0.3 |
| | UKIP | John-Paul Rye | 17 | 3.9 | N/A |
| Majority | Majority | Majority | 26 | 5.9 | |
| Turnout | Turnout | Turnout | 439 | 27.9 | −28.6 |
| | Liberal Democrats gain from Conservative | Liberal Democrats gain from Conservative | Swing | 21.7 | |
Pinkneys Green By-Election 25 October 2012 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democrats | Simon Werner | 839 | 43.2 | +0.2 |
| | Conservative | Catherine Hollingsworth | 831 | 42.8 | −3.3 |
| | UKIP | George Chamberlaine | 152 | 7.8 | +7.8 |
| | Labour | Patrick McDonald | 121 | 6.2 | −4.7 |
| Majority | Majority | Majority | 8 | 0.4 | |
| Turnout | Turnout | Turnout | 1,943 | | |
| | Liberal Democrats gain from Conservative | Liberal Democrats gain from Conservative | Swing | | |
Clewer North By-Election 24 July 2014 :
| Party | Party | Candidate | Votes | % | ±% |
| | Independent | Wisdom da Costa | 878 | 57.7 | +57.7 |
| | Conservative | John Collins | 486 | 31.9 | −4.6 |
| | Labour | Peter Shearman | 158 | 10.4 | −3.0 |
| Majority | Majority | Majority | 392 | 25.8 | |
| Turnout | Turnout | Turnout | 1,522 | | |
| | Independent hold | Independent hold | Swing | | |
Cox Green By-Election 11 December 2014 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Ross McWilliams | 738 | 50.7 | −2.2 |
| | Liberal Democrats | Gareth Jones | 315 | 21.6 | −10.9 |
| | UKIP | Lance Carter | 278 | 19.1 | +19.1 |
| | Labour | Robert Horner | 124 | 8.5 | −1.1 |
| Majority | Majority | Majority | 423 | 29.1 | |
| Turnout | Turnout | Turnout | 1,455 | | |
| | Conservative hold | Conservative hold | Swing | | |

### 2015–2019

Maidenhead Riverside By-Election 10 March 2016 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Judith Diment | 916 | 53.4 | +4.5 |
| | Liberal Democrats | Saghir Ahmed | 397 | 23.2 | +7.7 |
| | Independent | Jeff Lloyd | 162 | 9.5 | +9.5 |
| | Labour | Nigel Smith | 144 | 8.4 | −4.3 |
| | UKIP | George Chamberlaine | 95 | 5.5 | −5.8 |
| Majority | Majority | Majority | 519 | 30.3 | |
| Turnout | Turnout | Turnout | 1,714 | | |
| | Conservative hold | Conservative hold | Swing | | |
Sunninghill and South Ascot By-Election 23 June 2016 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Julian Sharpe | 1,443 | 57.2 | +15.1 |
| | Labour | Spike Humphrey | 601 | 23.8 | +13.2 |
| | Liberal Democrats | Tamasin Barnbrook | 264 | 10.5 | −2.5 |
| | UKIP | Nicole Fowler | 214 | 8.5 | −1.8 |
| Majority | Majority | Majority | 842 | 33.4 | |
| Turnout | Turnout | Turnout | 2,522 | | |
| | Conservative hold | Conservative hold | Swing | | |
Clewer North By-Election 4 May 2017 :
| Party | Party | Candidate | Votes | % | ±% |
| | Independent | Wisdom da Costa | 805 | 35.5 | +1.5 |
| | Conservative | Lars Swann | 784 | 34.6 | −11.9 |
| | Liberal Democrats | Amy Tisi | 405 | 17.9 | +17.9 |
| | Labour | Michael Boyle | 273 | 12.0 | −7.5 |
| Majority | Majority | Majority | 21 | 0.9 | |
| Turnout | Turnout | Turnout | 2,267 | | |
| | Independent gain from Conservative | Independent gain from Conservative | Swing | | |
Datchet By-Election 22 November 2018 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | David Cannon | 525 | 56.0 | −3.0 |
| | Flood Prevention | Ewan Larcombe | 223 | 23.8 | +23.8 |
| | Labour | Deborah Foster | 121 | 12.9 | −8.5 |
| | Liberal Democrats | Tim O'Flynn | 48 | 5.1 | −14.5 |
| | Green | Christopher Moss | 21 | 2.2 | +2.2 |
| Majority | Majority | Majority | 302 | 0.9 | |
| Turnout | Turnout | Turnout | 938 | | |
| | Conservative hold | Conservative hold | Swing | | |

### 2019–2023

Riverside By-Election 30 October 2019 :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Gregory Jones | 794 | 41.1 | +5.7 |
| | Liberal Democrats | Kashmir Singh | 566 | 29.3 | +9.5 |
| | Borough First | Claire Stretton | 428 | 22.1 | −6.1 |
| | Labour | Sharon Bunce | 70 | 3.6 | −4.0 |
| | Green | Craig McDermott | 60 | 3.1 | −5.9 |
| | Women's Equality | Deborah Mason | 16 | 0.8 | +0.8 |
| Majority | Majority | Majority | 228 | 11.8 | |
| Turnout | Turnout | Turnout | 1,934 | | |
| | Conservative hold | Conservative hold | Swing | | |

### 2023–2027

Ascot and Sunninghill By-Election 17 October 2024 :
| Party | Party | Candidate | Votes | % |
| | Conservative | Sally Coneron | 1,264 | 58.5 |
| | Liberal Democrats | George Jezard | 703 | 32.6 |
| | Borough First | Matt Newman | 118 | 5.5 |
| | Labour | Nigel Hayward | 74 | 3.4 |
| Majority | Majority | Majority | 561 | 26.0 |
| Turnout | Turnout | Turnout | 2,159 | |
| | Conservative hold | Conservative hold | Swing | |