Thames to Southern Transfer Project

In 2019 we published our Water Resources Management Plan (WRMP). This plan sets out what we can do to ensure a reliable water supply in the years ahead.

In 2021 we submitted our Regulators’ Alliance for Progressing Infrastructure Development (RAPID) Gate 1 report, where we confirmed six feasible options to transfer water from Thames Water’s area to our Hampshire zone. RAPID gave approval to progress the project to Gate 2.

In 2022 we submitted our RAPID Gate 2 report, where we confirmed two preferred options to transfer potable water from Thames Water’s area to our Hampshire zone. RAPID gave approval to progress the project to Gate 3.

We’ll hold our first public consultation in 2026. This is so we can share our plans, route options for the new pipeline and hear your views.

We’ll conduct another public consultation on the technical details of the pipeline route and associated infrastructure. This will also include a Preliminary Environmental Information Report which will detail potential environmental impacts.

Development Consent Order submission expected.

We hope to submit our planning consent application in 2030. As part of this, we’ll also be submitting an Environmental Statement which includes an assessment of the project’s environmental impact.

This is when we expect to receive a decision on our planning consent application.

Construction will begin on the project.

We expect the new water supply works and pipelines to be operational, with water available once the source of water, a new reservoir in Oxfordshire, is built by Thames Water.