Current

Following their review of parliamentary representation, the Boundary Commission for England created this seat for the 2010 general election. Neighbouring constituencies had consequential boundary changes, with Erewash and Amber Valley the most affected.

The constituency is made up of the following electoral wards:

• Belper Central; Belper East; Belper North; Belper South; Duffield, part of the borough of Amber Valley
• Allestree, Oakwood and Spondon, part of the City of Derby
• Little Eaton and Breadsall; Ockbrook and Borrowash; Stanley; West Hallam and Dale Abbey, part of the borough of Erewash¹

¹ Following a local government boundary review in Erewash which became effective in May 2015,^[3] the Stanley ward was merged into Little Eaton and Breadsall which was renamed Little Eaton and Stanley.

Proposed

Further to the 2023 Periodic Review of Westminster constituencies, enacted by the Parliamentary Constituencies Order 2023, the composition of the constituency from the next general election, due by January 2025, will be expanded by the addition of the South West Parishes ward (as it existed on 1 December 2020) in the borough of Amber Valley, transferred from Derbyshire Dales.^[4]

Following local government boundary reviews in Amber Valley^[5][6] and Derby^[7][8] which came into effect in May 2023, the constituency will now comprise the following from the next general election:

• The Borough of Amber Valley wards of: Alport & South West Parishes (part); Belper East; Belper North; Belper South; Duffield & Quarndon.
• The City of Derby wards of: Allestree; Chaddesdon North (small part); Oakwood (most); Spondon.
• The Borough of Erewash wards of: Little Eaton & Stanley; Ockbrook & Borrowash; West Hallam & Dale Abbey.^[9]

MPs 1885–1918

MPs since 2010

Elections in the 2020s

Elections in the 2010s

Note: This constituency was a notional hold in 2010, as it would likely have been won by the Conservatives in 2005 had it existed then. This is despite the fact all of the wards were actually within constituencies that Labour held in 2005.

Elections in the 1910s

General Election 1914–15:

Another General Election was required to take place before the end of 1915. The political parties had been making preparations for an election to take place and by July 1914, the following candidates had been selected;

• Liberal: John Hancock
• Unionist:

Elections in the 1900s

• Hancock, who was sponsored by the Derbyshire Miners Association was chosen by the local Liberal Association as their candidate. During the campaign he agreed that he would sign the Labour Party constitution, so some records describe him as the Labour party candidate.

Elections in the 1890s

Elections in the 1880s