The Government has published a working paper as part of its wider programme of planning reform, seeking views on proposed geographies for Spatial Development Strategies (SDS).

The suggested areas, including one for the region, aim to align with existing or forthcoming mayoral devolution arrangements from April 2026, where appropriate.

In other areas, SDS geographies should reflect the “sensible geography” criteria set out in the December 2024 English Devolution White Paper. Annexes provide further detail, alongside proposals for new Foundation Strategic Authorities.

Council leaders from across the Thames Valley including councils in Oxfordshire, Berkshire and Swindon, have welcomed the proposal.