Planning

prj_7956 - Major Project SRO HWTWRP - ME4

SOUTHERN WATER SERVICES LIMITED

This public procurement record has 1 release in its history.

Planning

06 Feb 2026 at 12:27

Summary of the contracting process

Southern Water Services Limited has initiated the planning stage for the Hampshire Water Transfer and Water Recycling Project, a strategic resource option aimed at addressing water supply shortfalls in Hampshire. This major project, involving the construction of a water recycling plant, pipelines, and related infrastructure, will utilise advanced technologies to recycle wastewater into purified drinking water. Located in the UK, with the main activities centred around the Havant Thicket Reservoir and Otterbourne Water Supply Works, the procurement involves a market engagement exercise with a deadline of 5th June 2026. A series of informational activities are planned, including a townhall event on 14th April 2026. The procurement process employs Ofwat's Direct Procurement for Customers model, with Southern Water seeking a Competitively Appointed Provider to manage the Design, Build, Finance, Maintain, and Operate contract.

This tender presents significant opportunities for firms involved in construction, engineering, and water management services to participate in a large-scale infrastructure project with a long-term contract extending up to 2059. Businesses with expertise in tunnelling, water piping, infrastructure design, and construction management are well-suited to compete, as are those offering integrated engineering and financial services. Participation in this procurement could lead to extensive business growth, given the project's scale and the sustainable solutions it aims to provide. This project also offers prospects for investment and collaboration with Southern Water, making it an advantageous venture for companies looking to expand their portfolios in the utility sector.

How relevant is this notice?

Notice Information

Notice Title

prj_7956 - Major Project SRO HWTWRP - ME4

Notice Description

The Hampshire Water Transfer and Water Recycling Project (The Project) is a Strategic Resource Option (SRO) and a major part of Southern Water's long-term strategy to address the significant water supply shortfall in Hampshire. By using advanced water treatment technologies, the Project will transform treated wastewater, normally pumped far out to sea, into purified recycled water. This new resource will supplement natural spring water from Portsmouth Water's Bedhampton Springs, with both sources being stored in the new Havant Thicket Reservoir. This integrated approach will maximise the reservoir's capacity, ensuring greater water availability, especially during periods of drought. Water from the reservoir will be transferred to our existing Otterbourne Water Supply Works, where it will undergo further treatment to strict drinking water standards prior to going into supply. By establishing a sustainable and resilient water source, the Project will help safeguard essential water supplies for our customers while reducing reliance on environmentally sensitive water sources. The Project consists of a Water Recycling Plant, tunnel and pipeline connections, a High Lift Pumping Station, and a circa 42 km transfer to Otterbourne Water Supply Works inclusive of intermediate pumping stations and break pressure tanks. The Project scope includes Design, Build, Finance, Maintain and Operate (DBFMO) 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 DBFMO project. Under the DPC model, Southern Water plan to openly tender for a CAP. Southern Water has carried out several market engagement exercises to support this procurement. Southern Water does not guarantee that all activities referenced by the CPV codes will form part of any future tender notice(s), nor is the list exhaustive of all activities which may be included in any procurement process under this Project.

Planning Information

This market engagement exercise will be comprised of a series of engagement activities which includes: • Market Survey • Requests for Information (RFIs) Pack comprising an RFI questionnaire and key information on the Project (to be issued early April 2026 with circa four-week deadline for responses to the RFI questionnaire) • Townhall Event (14th April, 2026) • A small number of bi-lateral meetings with selected participants Southern Water is seeking feedback in particular from investors, construction and operating and maintenance contractors and/or potential consortia (which may involve their wider supply chain) that may be interested in the Project. Southern Water will be issuing a Market Engagement Briefing Pack, which will provide further information on this market engagement exercise. The RFI Pack will inform interested parties on various aspects of the Project including the procurement process and enable them to provide feedback. The Townhall Event is expected to be soon after the launch of the RFIs where a Project update is to be provided. Bi-lateral meetings will be held with selected participants based on responses to RFIs and focusing on investors, construction and operating and maintenance contractors and/or proposed consortia (which may involve a wider supply chain). The basis on which this market engagement exercise is carried out is as follows: • Southern Water may continue this market engagement exercise as long as it considers it necessary and expressly reserves the right to conduct such other activities that it considers necessary, details of which will be provided through the Jaggaer portal (see details below); • While feedback is expected to be requested through the RFIs, Southern Water may choose not to consider or implement any or all of the suggestions made through this market engagement exercise, or may at its discretion use the outputs from this exercise to shape and refine any aspect including the procurement process before any formal competitive procurement process is launched; • This market engagement exercise is open to all interested parties. However, there are certain activities such as the bi-lateral meetings, that may be relevant to only certain interested parties, which Southern Water will determine based on RFI responses and/or their role in the supply chain; • The market engagement exercise is not a formal request for participation in any procurement. Involvement in this exercise will not confer any advantage or disadvantage on any person in respect of any future competitive procurement processes launched for the Project; • Respondents should note that information provided in response to the market engagement exercise may be disclosed by Southern Water to its directly appointed advisers and consultants (all of whom are subject to obligations of confidentiality as part of their appointment) and / or to other stakeholders such as regulators. The information provided in responses may also be disclosed, in a suitably summarised and anonymised form, to other stakeholders and to other interested persons; • Southern Water is not obliged to respond to any correspondence related to the market engagement exercise. Direct or indirect canvassing of Southern Water (or any person connected with it) by any person concerning the market engagement exercise, or any attempt to procure information outside of the defined process is discouraged and may (in certain circumstances) require the disqualification of the relevant person(s) from participation in any future competitive procurement process; • Any costs of participation in this market engagement exercise will be borne by the interested person. Southern Water is using an electronic tendering portal (Jaggaer One) which can be found at: https://southernwater.ukp.app.jaggaer.com/esop/guest/go/opportunity/detail?opportunityId=60525 It is free to register on the portal, which can be accessed at any time of day. Should you have any problems registering on the portal, you should contact Jaggaer by Email: BSUK-Sales@jaggaer.com or by phone 0800 069 8630 All updated information relating to this preliminary market engagement exercise will be issued via Jaggaer and interested parties must register (if not already registered) and regularly check Jaggaer for the latest information. Suppliers who have not previously participated in any market engagement with Southern Water are nevertheless encouraged to contact Southern Water by emailing HWTWRP@southernwater.co.uk Southern Water has carried our three previous rounds of market engagement exercises relating to the Project as detailed in the relevant notices for market engagement one (PIN: 2022/S 000-003206), market engagement two (PIN: 2022/S 000-031175) and market engagement three (PIN: 2024/S 000-034148). This market engagement exercise is expected to be the final round of market engagement relating to the Project.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-064a00
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/010912-2026
Current Stage
Planning
All Stages
Planning

Procurement Classification

Notice Type
UK2 - Preliminary Market Engagement Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Not Specified
Procurement Method Details
Not specified
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

43 - Machinery for mining, quarrying, construction equipment

44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)

45 - Construction work

50 - Repair and maintenance services

65 - Public utilities

66 - Financial and insurance services

71 - Architectural, construction, engineering and inspection services


CPV Codes

43614000 - Parts of tunnelling machinery

44000000 - Construction structures and materials; auxiliary products to construction (except electric apparatus)

45200000 - Works for complete or part construction and civil engineering work

45221000 - Construction work for bridges and tunnels, shafts and subways

45221240 - Construction work for tunnels

45231100 - General construction work for pipelines

45231300 - Construction work for water and sewage pipelines

45240000 - Construction work for water projects

45252126 - Drinking-water treatment plant construction work

50000000 - Repair and maintenance services

65100000 - Water distribution and related services

65130000 - Operation of water supplies

66100000 - Banking and investment services

66122000 - Corporate finance and venture capital services

71000000 - Architectural, construction, engineering and inspection services

71340000 - Integrated engineering services

71500000 - Construction-related services

71540000 - Construction management services

71541000 - Construction project management services

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
6 Feb 20263 days ago
Submission Deadline
Not specified
Future Notice Date
29 Jan 202712 months to go
Award Date
Not specified
Contract Period
30 Aug 2029 - 31 Mar 2059 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Planning
Lots Status
Planning
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
SOUTHERN WATER SERVICES LIMITED
Contact Name
Not specified
Contact Email
hwtwrp@southernwater.co.uk
Contact Phone
Not specified

Buyer Location

Locality
WORTHING
Postcode
BN13 3NX
Post Town
Brighton
Country
England

Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ2 Surrey, East and West Sussex
Small Region (ITL 3)
TLJ27 West Sussex (South West)
Delivery Location
Not specified

Local Authority
Worthing
Electoral Ward
Northbrook
Westminster Constituency
Worthing West

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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