Major Project SRO HWTWRP - ME4

Southern Water is conducting the fourth and intended final phase of market engagement for the Hampshire Water Transfer and Water Recycling Project (HWTWRP). The Hampshire Water Transfer Recycling Project (HWTWRP) aims to provide long-term water supply resilience for the Hampshire region, addressing drought resilience, climate change, environmental protection, and population growth. The project scope includes design, build, finance, operation, and maintenance of new water infrastructure, including water recycling, water transfer, and substantial tunnelling works. The project will be procured using Ofwat’s Direct Procurement for Customers (DPC) model, with a Competitively Appointed Provider (CAP) to deliver the Design, Build, Finance, Operate and Maintain project.

HWTWRP ME4 has been completed but you can still register interest in this project by contacting [email protected]

Key Information Our DCO application was submitted to the Planning Inspectorate on 28 May 2026, the application was accepted for examination on 25 June 2026.

All application documents can be viewed on the Planning Inspectorate's website: https://national-infrastructure-consenting.planninginspectorate.gov.uk/projects/WA010002/documents

HWTWRP Stage 3 Ofwat approval is anticipated December 2026 PSQ is anticipated to be issued to the market on the new portal Coupa January 2027

Notes: SWS will be moving to a new portal, Coupa, in Summer 2026. We will issue information here when this project is accessible in Coupa.

Procurement Route: Procurement Act – Competitive Flexible

Contract Duration: 25 years

Contract Start: 01/02/2029