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Planned procurement · Notice 102059-2026

Cwm Taf Water Supply Strategy Procurement Scheme - Direct Procurement for Customers (DPC)

Dwr Cymru Cyfyngedig

Value
£556m
Stage
Early notice
Where
Wales
Lots
1
Suitable for SMEs
Not stated
Contract
30 Nov 2028 – 29 Nov 2058

In plain English

Dŵr Cymru Welsh Water is preparing to appoint a single provider to design, build and finance a new water treatment works and pumping station near Merthyr Tydfil and Pontsticill, plus an upgrade of the Llwyn-onn treatment works, in Wales. The estimated value is £556,000,000 excluding VAT, the contract period runs from 30 November 2028 to 29 November 2058, and this is a market engagement update, not an open tender, with the procurement launch planned for Q1 2027.

Good fit for: Large construction, engineering and infrastructure finance groups, or consortia, able to fund and deliver a multi-site water project; smaller firms could look at subcontract roles.

The catch (with the notice's own words):
  • Not open for bids yet This notice is not a call for competition, a tender notice, or a commitment to procure.
  • Winner must design, build and finance the works The scheme includes the Design, Build and Finance (DBF) of a new water treatment works

Written with AI from the official notice. Check the notice before relying on it.

What the buyer says

Scope Update to Preliminary Market Engagement Notice This update to the Preliminary Market Engagement Notice published on 24 July 2026 (notice identifier 2026/S 000-070264) provides details of the next phase of market engagement for the Cwm Taf Water Supply Strategy, ahead of the planned procurement launch in Q1 2027. The “Engagement” section has been revised to summarise engagement undertaken to date and to provide information on a Meet The Buyer event on 10 November 2026, and details in relation to a data room to be made available before planned procurement launch. These arrangements replace the corresponding Engagement and Registration section in the 24 July 2026 notice. Earlier engagement in respect of the Cwm Taf WSS was advertised in the notice published on 10 November 2025 (notice identifier 2025/S 000-072565). Except as expressly amended by this update, the information published in notice 2026/S 000-070264 remains unchanged. Description Dŵr Cymru Welsh Water (DCWW) is the largest water and sewerage company in Wales and the sixth largest operating in England and Wales. Responsible for providing high-quality drinking water for over three million customers and for taking away, treating and properly disposing of the wastewater that is produced. DCWW is committed to securing water supplies for future generations while protecting the environment. Our primary responsibility is to operate, maintain and upgrade this large network of assets to ensure a safe and reliable drinking water supply and to deal effectively with discharges so as to protect the environment. As part of its Cwm Taf Water Supply Strategy (“Cwm Taf WSS”), DCWW is seeking to progress a major investment project to design and build new water treatment works and develop an existing water treatment wor…

Read the official notice

What happens next

This is an early notice: the buyer is planning a tender, and its documents come when the tender is published. Read the official notice for the details.

Procedure: not stated. Published 28 Oct 2026.

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