# South Cambridgeshire (UK Parliament constituency)

South Cambridgeshire is a constituency represented in the House of Commons of the UK Parliament since the 2024 general election by Pippa Heylings of the Liberal Democrats.
The constituency boundaries were significantly changed under the most recent Boundary Commission review. The new constituency is also named South Cambridgeshire although it comprises approximately 60% of the original electorate who are now joined by voters formerly in South East Cambridgeshire constituency along with voters in the Cherry Hinton ward formerly in Cambridge constituency.
The previous MP Anthony Browne opted to fight the newly formed St Neots and Mid Cambridgeshire seat which contains part of his old constituency.

## Boundaries and boundary changes
### 1997–2010

* The District of South Cambridgeshire wards of Arrington, Bar Hill, Barrington and Shepreth, Barton, Bassingbourn, Bourn, Comberton, Coton, Duxford, Elsworth, Foxton, Gamlingay, Girton, Great Shelford, Hardwick, Harston, Haslingfield, Ickleton, Little Shelford, Longstanton, Melbourn, Meldreth, Orwell, Papworth, Sawston, Stapleford, Swavesey, The Mordens, and Whittlesford; and
* The City of Cambridge wards of Queen Edith's and Trumpington.
The constituency was created following the boundary review of 1995, and was first contested at the 1997 general election. Before this, much of the region had been part of the now abolished South West Cambridgeshire constituency represented by Sir Anthony Grant from 1983 to 1997, while the wards of Bar Hill, Coton, Elsworth, Girton, Longstanton and Swavesey were transferred from South East Cambridgeshire.

### 2010–2024

* The District of South Cambridgeshire wards of Bar Hill, Barton, Bassingbourn, Bourn, Caldecote, Comberton, Cottenham, Duxford, Fowlmere and Foxton, Gamlingay, Girton, Grantchester, Hardwick, Harston and Hauxton, Haslingfield and The Eversdens, Longstanton, Melbourn, Meldreth, Orwell and Barrington, Papworth and Elsworth, Sawston, Swavesey, The Abingtons, The Mordens, The Shelfords and Stapleford, and Whittlesford; and
* The City of Cambridge ward of Queen Edith's.
Following the 2007 review of parliamentary representation in Cambridgeshire, the Boundary Commission made minor alterations to the existing constituencies to deal with population changes.
Trumpington ward and parts of Coleridge and Cherry Hinton wards in the City of Cambridge were transferred to Cambridge, having previously been part of South Cambridgeshire.
Additionally, parts of Cottenham ward (specifically the civil parishes of Cottenham and Rampton) and the Abingtons (Babraham, Great Abington, Little Abington and Pampisford) were added to South Cambridgeshire, having previously voted in the South East Cambridgeshire constituency.

### Current

Further to the 2023 periodic review of Westminster constituencies, which came into effect for the 2024 general election, the composition of the constituency is as follows (as they existed on 1 December 2020):
* The City of Cambridge wards of: Cherry Hinton; Queen Edith’s.
* The District of South Cambridgeshire wards of: Balsham; Barrington; Bassingbourn; Duxford; Fen Ditton & Fulbourn; Foxton; Gamlingay; Hardwick; Harston & Comberton; Linton; Melbourn; Sawston; Shelford; The Mordens; Whittlesford.
The seat was subject to major changes, with northern areas, including the new towns of Cambourne and Northstowe, being transferred to the newly created constituency of St Neots and Mid Cambridgeshire. To partly compensate, it gained the Cherry Hinton ward in the City of Cambridge and southern parts of the abolished constituency of South East Cambridgeshire, including the villages of Fulbourn and Linton.

## Members of Parliament

South West Cambridgeshire prior to 1997
| Election | Member | Party |
| 1997 | Andrew Lansley | Conservative |
| 2015 | Heidi Allen | Conservative |
| 2019 | Heidi Allen | Change UK |
| 2019 | Heidi Allen | Independent |
| 2019 | Heidi Allen | The Independents |
| 2019 | Heidi Allen | Liberal Democrats |
| 2019 | Anthony Browne | Conservative |
| 2024 | Pippa Heylings | Liberal Democrats |

## Elections
### Elections in the 2020s

General election 2024: South Cambridgeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democrats | Pippa Heylings | 25,704 | 46.8 | +5.8 |
| | Conservative | Chris Carter-Chapman | 15,063 | 27.4 | −16.1 |
| | Labour | Luke Viner | 6,106 | 11.1 | −4.0 |
| | Reform UK | Harrison Edwards | 4,897 | 8.9 | +8.8 |
| | Green | Miranda Fyfe | 2,656 | 4.8 | +4.6 |
| | Independent | James Gordon | 459 | 0.8 | N/A |
| Majority | Majority | Majority | 10,641 | 19.4 | |
| Turnout | Turnout | Turnout | 54,885 | 71.0 | −8.6 |
| Registered electors | Registered electors | Registered electors | 77,327 | | |
| | Liberal Democrats gain from Conservative | Liberal Democrats gain from Conservative | Swing | +11.0 | |

### Elections in the 2010s

2019 notional result :
| Party | Party | Vote | % |
| | Conservative | 26,153 | 43.5 |
| | Liberal Democrats | 24,655 | 41.0 |
| | Labour | 9,091 | 15.1 |
| | Green | 96 | 0.2 |
| | Brexit Party | 83 | 0.1 |
| Turnout | Turnout | 60,078 | 79.6 |
| Electorate | Electorate | 75,484 |
General election 2019: South Cambridgeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Anthony Browne | 31,015 | 46.3 | −5.5 |
| | Liberal Democrats | Ian Sollom | 28,111 | 42.0 | +23.4 |
| | Labour | Dan Greef | 7,803 | 11.7 | −15.5 |
| Majority | Majority | Majority | 2,904 | 4.3 | −20.3 |
| Turnout | Turnout | Turnout | 66,929 | 76.7 | +0.5 |
| | Conservative hold | Conservative hold | Swing | −14.4 | |
General election 2017: South Cambridgeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Heidi Allen | 33,631 | 51.8 | +0.7 |
| | Labour | Dan Greef | 17,679 | 27.2 | +9.6 |
| | Liberal Democrats | Susan van de Ven | 12,102 | 18.6 | +3.4 |
| | Green | Simon Saggers | 1,512 | 2.3 | −4.0 |
| Majority | Majority | Majority | 15,952 | 24.6 | −8.9 |
| Turnout | Turnout | Turnout | 64,924 | 76.2 | +3.1 |
| | Conservative hold | Conservative hold | Swing | −4.5 | |
General election 2015: South Cambridgeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Heidi Allen | 31,454 | 51.1 | +3.7 |
| | Labour | Dan Greef | 10,860 | 17.6 | +7.4 |
| | Liberal Democrats | Sebastian Kindersley | 9,368 | 15.2 | −18.9 |
| | UKIP | Marion Mason | 6,010 | 9.8 | +6.6 |
| | Green | Simon Saggers | 3,848 | 6.3 | +4.5 |
| Majority | Majority | Majority | 20,594 | 33.5 | +20.2 |
| Turnout | Turnout | Turnout | 61,540 | 73.1 | −1.7 |
| | Conservative hold | Conservative hold | Swing | −1.9 | |
General election 2010: South Cambridgeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Andrew Lansley | 27,995 | 47.4 | +0.9 |
| | Liberal Democrats | Sebastian Kindersley | 20,157 | 34.1 | +5.8 |
| | Labour | Tariq Sadiq | 6,024 | 10.2 | −9.5 |
| | Independent | Robin Page | 1,968 | 3.3 | New |
| | UKIP | Helene Davies-Green | 1,873 | 3.2 | +0.4 |
| | Green | Simon Saggers | 1,039 | 1.8 | −1.0 |
| Majority | Majority | Majority | 7,838 | 13.3 | +4.9 |
| Turnout | Turnout | Turnout | 59,056 | 74.8 | +6.6 |
| | Conservative hold | Conservative hold | Swing | −2.5 | |

### Elections in the 2000s

General election 2005: South Cambridgeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Andrew Lansley | 23,676 | 45.0 | +0.8 |
| | Liberal Democrats | Andrew Dickson | 15,675 | 29.8 | +2.9 |
| | Labour | Sandra Wilson | 10,189 | 19.4 | −4.9 |
| | UKIP | Robin Page | 1,556 | 3.0 | +1.2 |
| | Green | Simon Saggers | 1,552 | 2.9 | +0.5 |
| Majority | Majority | Majority | 8,001 | 15.2 | −2.1 |
| Turnout | Turnout | Turnout | 52,648 | 68.4 | +1.3 |
| | Conservative hold | Conservative hold | Swing | −1.1 | |
General election 2001: South Cambridgeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Andrew Lansley | 21,387 | 44.2 | +2.2 |
| | Liberal Democrats | Amanda Taylor | 12,984 | 26.9 | +1.1 |
| | Labour | Joan Herbert | 11,737 | 24.3 | −0.8 |
| | Green | Simon Saggers | 1,182 | 2.4 | New |
| | UKIP | Helene Davies | 875 | 1.8 | +1.2 |
| | ProLife Alliance | Beata Klepacka | 176 | 0.4 | New |
| Majority | Majority | Majority | 8,403 | 17.3 | +1.1 |
| Turnout | Turnout | Turnout | 48,341 | 67.1 | −9.8 |
| | Conservative hold | Conservative hold | Swing | +0.6 | |

### Elections in the 1990s

General election 1997: South Cambridgeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Andrew Lansley | 22,572 | 42.0 | |
| | Liberal Democrats | James A. Quinlan | 13,860 | 25.8 | |
| | Labour | Tony Gray | 13,485 | 25.1 | |
| | Referendum | Robin Page | 3,300 | 6.1 | |
| | UKIP | Derek A. Norman | 298 | 0.6 | |
| | Natural Law | Francis C. Chalmers | 168 | 0.3 | |
| Majority | Majority | Majority | 8,712 | 16.2 | |
| Turnout | Turnout | Turnout | 53,683 | 76.9 | |
| | Conservative win (new seat) | Conservative win (new seat) | Conservative win (new seat) | Conservative win (new seat) | Conservative win (new seat) |