Council leaders across the Thames Valley are pushing ahead with plans for a new Mayoral Strategic Authority (MSA) which could unlock billions of pounds of investment and reshape the region’s transport, housing and infrastructure over the coming decades.
The proposed combined authority – covering areas in Oxfordshire, Berkshire and Swindon – would be led by a directly elected mayor and granted devolved powers from central government. Leaders say the move would allow decisions on major projects to be made locally, with more coordinated planning and faster delivery.
An expression of interest letter is set to be debated by councils during November and December, with a view to submitting it to government by the end of the year.
If approved, the devolution deal could unlock up to £18.7 billion in additional economic output by 2040 and generate £7 billion in annual tax revenue, according to independent analysis. It is also expected to create new opportunities for skills, training, innovation and investment across the region.
Swindon Borough Council’s Leader, Councillor Jim Robbins, said the proposal was a “game-changing opportunity” for the town.
“Our dynamic economy makes us an ideal partner for the Thames Valley Mayoral Strategic Authority. By linking our strengths with Oxfordshire and Berkshire, we can create deeper labour markets, stronger supply chains and faster innovation. This is a chance to plan strategically for decades to come and ensure Swindon’s continued success.”
Conservative Group Leader Councillor Gary Sumner said the economic case for joining the MSA was “compelling”.
“We know from conversations with our business community that closer alignment with our partners along the M4 corridor would boost supply chains and create significant opportunities for growth. This authority gives us the chance to build on our current strengths and become even more resilient.”
Liberal Democrat councillor Adam Poole also voiced support, saying:
“We cannot afford to be left behind. This partnership will benefit residents and businesses alike, increasing prosperity for Swindon.”
The proposed MSA would focus on improving housing provision — with an emphasis on social housing — as well as delivering integrated transport, upgrading infrastructure, and ensuring that research and innovation across the Thames Valley translates into jobs and long-term growth.
Leaders say the new structure would help speed up delivery and attract investment, reinforcing the region’s reputation as one of the UK’s most productive and innovative economies. It could also form a strategic growth partner for neighbouring authorities, particularly around the Oxford–Cambridge corridor.
No final decisions have yet been made, and discussions with government are ongoing. If the expression of interest is accepted, detailed proposals will be developed in the coming months for consideration by each local council and regional partners.
More information can be found at reading.gov.uk/devolution.
