Thames Valley councils submit bid for major combined authority led by elected mayor

Proposed mayoral strategic authority aims to boost local transport, housing, and jobs

Author: Alex Lane-KieltykaPublished 20th Dec 2025

An expression of interest to create a mayoral strategic authority (MSA) in the Thames Valley region has been submitted to the government following agreement by 13 councils across Oxfordshire, Berkshire, and Swindon.

The proposed MSA would establish a new combined authority led by a directly-elected mayor and provide councils with greater powers and funding to accelerate growth, improve infrastructure, and expand affordable housing. The vision includes creating better transport connectivity, delivering social housing, and fostering inclusive economic growth.

Council leaders have highlighted the potential benefits an MSA could bring to communities and businesses, supporting sustainable development across one of the UK’s most innovative and productive regions.

Councillor Jim Robbins, Leader of Swindon Borough Council, described the proposal as a transformative opportunity:

“This is a significant moment for Swindon as this path we are taking has the potential to unlock billions of pounds for the economies in the Thames Valley region and will put us on an extremely firm footing for the future.

“We are making a really strong and compelling case to the Government and I am particularly proud of the role we have played in getting us to this point, having hosted our Thames Valley partners at the very first strategic devolution meeting at Lydiard House just over a year ago.

“This partnership shows what can be done when political differences are put aside to pursue an opportunity that will benefit all our residents for many years to come.”

Councillor Mary Temperton, Leader of Bracknell Forest Council and Chair of the Berkshire Prosperity Board, echoed similar optimism:

“Signing the expression of interest is an important step forward in our local devolution journey and together we hope that this will provide a compelling case to government for sustained investment in the region.

“Our aim with the MSA is that it will help boost the local economy and improve services that are really important to our residents, like transport and housing as well as boost jobs. It will also be an opportunity for our area to take charge of big infrastructure projects which make a real difference to lives locally.”

Councillor Liz Leffman, Leader of Oxfordshire County Council, underlined the significance of this proposal as a generational opportunity.

“We have a once in a generation chance to seize the opportunities that devolution offers. By coming together as a strategic authority, our councils can better coordinate resources and expertise to deliver the support our residents need.”

Leffman emphasised the ambition for inclusive development, stating:

“A Thames Valley MSA will harness the collective strengths of the region to unlock unparalleled prospects for inclusive and sustainable growth. It provides a unique opportunity to shape our urban and rural places ensuring lasting benefits for current and future generations.”

The proposed mayoral strategic authority for Thames Valley is expected to act as a strategic growth partner for neighbouring regions, including councils linked to the Oxford-Cambridge corridor. Discussions will continue with the government, and detailed plans will be developed over the coming months for review by local councils and partners.

If realised, the MSA is designed to speed up delivery, attract investment, and strengthen regional infrastructure, paving the way for a more connected and inclusive Thames Valley.

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