In November 2025, leaders of seven of Derbyshire’s district and borough councils, together with the Leader of Derby City Council, officially submitted their local government reorganisation proposals to the Government to create two new unitary councils to deliver all services to local people in the future.
The ‘One Derbyshire, Two Councils’ plan proposes to reduce the number of local authorities covering Derbyshire from 10 to two, with one covering the north of the county, and one covering the south.
The final 'case for change' document details the Leaders’ collective vision ‘for Derbyshire to be a place where people proudly work, live, belong and thrive’ and how creating two new unitary councils would:
- Keep councils connected to local people – big enough to deliver but close enough to listen and respond to local needs.
- Better enable the provision of effective and value for money services – councils with the ambition and financial stability to transform the services residents receive, especially those relating to adult care, children’s services, SEND and homelessness.
- Preserve local identity and protect Derbyshire’s historic boundaries, cultural heritage and environmental assets.
- Meet the Government’s criteria for unitary local government – with the two councils each serving populations of around 500,000 people.
- Support the Mayor of the East Midlands and East Midlands Combined County Authority to grow an inclusive economy, reform public services and secure better outcomes for the region’s communities.
The four proposals under ‘One Derbyshire, Two councils’ plan
The ‘One Derbyshire, Two Councils’ plan includes four separate proposals differentiated on the basis of where the boundary line between the northern and southern unitary councils could be drawn.
Proposal A
Supported by Amber Valley Borough Council
Amber Valley joins the northern Derbyshire unitary council with High Peak, Derbyshire Dales, Chesterfield, North East Derbyshire, and Bolsover.
The southern council includes Derby City, South Derbyshire, and Erewash.
Read more in Appendix 3.1 - Case for Change Proposal A.
Proposal B
Supported by South Derbyshire District Council
Amber Valley joins the southern Derbyshire unitary council with Derby City, South Derbyshire, and Erewash.
The northern council includes High Peak, Derbyshire Dales, Chesterfield, North East Derbyshire, and Bolsover.
Read more in Appendix 3.3 - Case for Change Proposal B.
Proposal A1
Based on Proposal A, and supported by Bolsover and North East Derbyshire
A boundary change is proposed using the geographies of existing parish councils within Amber Valley borough as the building blocks for the proposed configuration of the two new unitary councils, with the populations of the named parish councils either being part of the northern Derbyshire unitary council or the southern Derbyshire unitary council.
Derbyshire Dales District Council resolved not to approve the main ‘One Derbyshire, Two Councils’ case for change, but did formally support Proposal A1 as its preferred option for local government reorganisation in the area of the county of Derbyshire.
Read more in Appendix 3.2 - Case for Change Proposal A1.
Proposal B1
Based on Proposal B, and supported by High Peak, Chesterfield, Derby City and Erewash
A boundary change is again proposed but this time using the geographies of different parish councils within Amber Valley borough as the building blocks for the proposed configuration of the two new unitary councils, with more of Amber Valley borough’s population falling under the remit of the southern Derbyshire unitary council.
Read more in Appendix 3.4 - Case for Change Proposal B1.