Southampton City Council Backs New Unitary Authority in Local Government Reorganisation Bid
Southampton City Council has formally submitted its preferred proposal for local government reorganisation (LGR), supporting the creation of a new unitary authority that would merge Southampton, Eastleigh, the Waterside area, and parts of lower Test Valley.
The move comes as part of a broader plan developed by 12 councils across Hampshire and the Solent region, which have been working together for several months to identify a sustainable and future-focused governance model. The councils’ collective vision calls for the formation of four new unitary councils on the mainland, in addition to retaining the Isle of Wight as a standalone authority.
Under Southampton’s proposal, the new council would cover:
• Southampton
• Eastleigh
• Parts of Test Valley: Valley Park, Chilworth, Nursling and Rownhams
• Waterside parishes: Totton and Eling, Marchwood, Hythe and Dibden, and Fawley
The proposed reorganisation is designed around four key principles:
1. Bringing together similar communities – aligning councils to reflect distinct urban and rural identities.
2. Driving economic and housing growth – particularly by linking the industrial, maritime, and infrastructure assets on both sides of Southampton Water.
3. Using real-world data – including travel-to-work patterns, transport links, and access to public services.
4. Creating sustainable local government – with more balanced populations and council tax bases.
Councillor Alex Winning, Leader of Southampton City Council, said the current system no longer reflects how communities operate.
“The current council boundaries were drawn up in the 1970s and haven’t kept pace with how our city and region have changed,” he said. “Communities have grown, economies have shifted, and the way people live, work, and access services is completely different now.”
“Our proposal reflects that modern reality. It brings together urban areas that already share common challenges and ambitions — places that are connected by transport, jobs, and public services. By joining up Southampton, Eastleigh, the Waterside, and lower Test Valley, we can build a council that’s financially sustainable, responsive to its communities, and focused on delivering excellent services. It’s also a chance to unlock new opportunities for investment, jobs, and growth across the South Coast.”
If approved, the new unitary council would replace the existing district and borough authorities within the proposed boundary, streamlining local government and potentially improving service delivery.
The government is now expected to review all submissions from councils across the region and is due to launch a public consultation later this year.