✓Tender information last checkedLast checked 6 Oct 2026, 18:11.
Opportunity overview
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 (DBFOM) 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 DBFOM 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.
Classification
CPV43614000 — Parts of tunnelling machinery
CPV44000000 — Construction structures and materials; auxiliary products to construction (except electric apparatus)
CPV45200000 — Works for complete or part construction and civil engineering work
CPV45221240 — Construction work for tunnels
CPV45222100 — Waste-treatment plant construction work
CPV45231100 — General construction work for pipelines
CPV45231300 — Construction work for water and sewage pipelines
CPV45240000 — Construction work for water projects
CPV45252126 — Drinking-water treatment plant construction work
CPV50000000 — Repair and maintenance services
CPV65100000 — Water distribution and related services
CPV65130000 — Operation of water supplies
CPV66100000 — Banking and investment services
CPV66122000 — Corporate finance and venture capital services
CPV71000000 — Architectural, construction, engineering and inspection services
CPV71340000 — Integrated engineering services
CPV71500000 — Construction-related services
CPV71540000 — Construction management services
CPV71541000 — Construction project management services
Lots
Lot 1Value not stated
Documents and notices
Preliminary market engagement notice on Find a TenderOpen source ↗
Published notice details
Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.
Construction structures and materials; auxiliary products to construction (except electric apparatus)
Entry 3
Scheme
CPV
Id
45200000
Description
Works for complete or part construction and civil engineering work
Entry 4
Scheme
CPV
Id
45222100
Description
Waste-treatment plant construction work
Entry 5
Scheme
CPV
Id
45221240
Description
Construction work for tunnels
Entry 6
Scheme
CPV
Id
45231100
Description
General construction work for pipelines
Entry 7
Scheme
CPV
Id
45231300
Description
Construction work for water and sewage pipelines
Entry 8
Scheme
CPV
Id
45240000
Description
Construction work for water projects
Entry 9
Scheme
CPV
Id
45252126
Description
Drinking-water treatment plant construction work
Entry 10
Scheme
CPV
Id
50000000
Description
Repair and maintenance services
Entry 11
Scheme
CPV
Id
65100000
Description
Water distribution and related services
Entry 12
Scheme
CPV
Id
65130000
Description
Operation of water supplies
Entry 13
Scheme
CPV
Id
71000000
Description
Architectural, construction, engineering and inspection services
Entry 14
Scheme
CPV
Id
71340000
Description
Integrated engineering services
Entry 15
Scheme
CPV
Id
71500000
Description
Construction-related services
Entry 16
Scheme
CPV
Id
71540000
Description
Construction management services
Entry 17
Scheme
CPV
Id
71541000
Description
Construction project management services
Entry 18
Scheme
CPV
Id
66100000
Description
Banking and investment services
Entry 19
Scheme
CPV
Id
66122000
Description
Corporate finance and venture capital services
Delivery locations
Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Entry 2
Region
UKJ
Country
GB
Country Name
United Kingdom
Planning and budget
Milestones
Entry 1
Id
engagement
Type
engagement
Description
Southern Water (SW) commenced market engagement 4 (ME4) on 6th February 2026 ( (Preliminary Market Engagement Notice 2026/S 000-010912) it included: • Market Survey
• Requests for Information (RFIs) Pack comprising an RFI questionnaire and key information on the Project • Townhall Event • A number of bi-lateral meetings with selected participants 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.
SW will now continue this ME4 engagement through its new sourcing portal, Coupa, and invites all interested parties to register and express their interest in the forthcoming Coupa event to ensure ongoing communication. All interested parties (whether they participated in the earlier market engagement or are now expressing an interest) are also encouraged to participate at this stage, and all previous materials and updated information will be made available through the Coupa portal.
https://supplier.coupahost.com/quotes/public_events?customer=southernwater&company_name=Southern+Water
SW will provide the market with a summary of the key updates to the Commercial Overview and Procurement Overview documents provided as part of the previous RFI exercise. SW may undertake further market engagement on these updates in November 2026, prior to tender launch in January 2027.
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 Coupa portal;
• To the extent that feedback is requested at any point during this market engagement exercise, 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;
• 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, Coupa, which can be found at: https://docs.coupa.com/en/supplier-documentation/coupa-for-suppliers/the-coupa-supplier-portal-or-csp
It is free to register on the portal, which can be accessed at any time of day.
Due
15 Jan 2027, 23:59
Status
scheduled
Documents
Entry 1
Id
094447-2026
Document Type
marketEngagementNotice
Notice Type
UK2
Description
Preliminary market engagement notice on Find a Tender
2 published notice versions reviewed by ProcuraAxis.
2 VERSIONS
1
010912-2026Preliminary market engagement notice on Find a Tender ·
2
094447-2026Preliminary market engagement notice on Find a Tender ·
PROCURAAXIS ANALYSIS
ProcuraAxis Analysis
Our approved analysis of the opportunity appears below the official tender information.
ANALYSIS PREVIEW
Opportunity intelligence at a glance
Early-stage market engagement for Southern Water’s planned Hampshire Water Transfer and Water Recycling Project. A future Competitively Appointed Provider (CAP) is intended to design, build, finance, maintain and operate major recycled-water, transfer, pumping, pipeline and tunnelling infrastructure.
Who this may suit
Best suited to consortia or prime contractors with major water infrastructure, advanced water-treatment, tunnelling, pipeline, pumping, asset-operation and project-finance capability. Bidding is not yet open and supplier selection requirements are unknown.
Key points identified
Delivery modelDesign, Build, Finance, Maintain and Operate (DBFOM) of new water infrastructure.Evidence: “The Project scope includes Design, Build, Finance, Maintain and Operate (DBFOM) of new water infrastructure.”
Infrastructure scopeWater recycling, water transfer and substantial tunnelling works.Evidence: “including water recycling, water transfer, and substantial tunnelling works.”
Water transfer infrastructureCirca 42 km transfer to Otterbourne Water Supply Works, including intermediate pumping stations and break pressure tanks.Evidence: “a circa 42 km transfer to Otterbourne Water Supply Works inclusive of intermediate pumping stations and break pressure tanks.”
94% approved-analysis confidence7 supplier criteria identified4 risks or unknowns
ProcuraAxis structures information found in published procurement records, checks the result for consistency and publishes only approved analysis. Confidence describes the completeness and consistency of the available source information; it is not a guarantee of eligibility or contract award.
Early-stage market engagement for Southern Water’s planned Hampshire Water Transfer and Water Recycling Project. A future Competitively Appointed Provider (CAP) is intended to design, build, finance, maintain and operate major recycled-water, transfer, pumping, pipeline and tunnelling infrastructure.
Who this may suit
Best suited to consortia or prime contractors with major water infrastructure, advanced water-treatment, tunnelling, pipeline, pumping, asset-operation and project-finance capability. Bidding is not yet open and supplier selection requirements are unknown.
Key deliverables
Water Recycling Plant
Tunnel and pipeline connections
High Lift Pumping Station
Circa 42 km transfer to Otterbourne Water Supply Works
Intermediate pumping stations and break pressure tanks
Design, Build, Finance, Maintain and Operate (DBFOM) delivery
SUPPLIER REQUIREMENTS
7 criteria identified
Delivery model
99% confidence
Design, Build, Finance, Maintain and Operate (DBFOM) of new water infrastructure.
View supporting evidence
“The Project scope includes Design, Build, Finance, Maintain and Operate (DBFOM) of new water infrastructure.”
Infrastructure scope
98% confidence
Water recycling, water transfer and substantial tunnelling works.
View supporting evidence
“including water recycling, water transfer, and substantial tunnelling works.”
Water transfer infrastructure
98% confidence
Circa 42 km transfer to Otterbourne Water Supply Works, including intermediate pumping stations and break pressure tanks.
View supporting evidence
“a circa 42 km transfer to Otterbourne Water Supply Works inclusive of intermediate pumping stations and break pressure tanks.”
Supplier requirements
97% confidence
Unknown at this market-engagement stage.
View supporting evidence
No qualification, technical-selection, financial-threshold or accreditation requirements are stated in the supplied notice text.
Intended provider
98% confidence
A Competitively Appointed Provider (CAP) is planned to deliver the DBFOM project.
View supporting evidence
“Southern Water plan to openly tender for a CAP.”
SME suitability
99% confidence
Unknown.
View supporting evidence
Suitable-for-SME status is not stated.
VCSE suitability
99% confidence
Unknown.
View supporting evidence
Suitable-for-VCSE status is not stated.
COMMERCIAL AND DELIVERY
Contract intelligence
Commercial
Commercial model
99% confidence
Ofwat Direct Procurement for Customers (DPC), with a CAP intended to deliver the DBFOM project.
View supporting evidence
“The Project will be procured using Ofwat’s Direct Procurement for Customers (DPC) model.”
Contract value
98% confidence
Unknown.
View supporting evidence
No value is stated; supplied value maximum is 0 GBP.
Pricing, payment and risk allocation
98% confidence
Unknown.
View supporting evidence
No commercial terms are provided in the supplied evidence.
Delivery
Buyer
99% confidence
Southern Water Services Limited.
View supporting evidence
Buyer named as “Southern Water Services Limited”.
Delivery geography
96% confidence
UKJ region and United Kingdom; the detailed project description identifies Hampshire, Havant Thicket Reservoir and Otterbourne Water Supply Works.
View supporting evidence
Delivery locations are listed as UKJ and UK; project description references Hampshire and Otterbourne Water Supply Works.
Operating outcome
97% confidence
Purified recycled water and spring water stored in Havant Thicket Reservoir, then transferred to Otterbourne Water Supply Works for treatment to drinking-water standards.
View supporting evidence
Project description sets out the treatment, storage and transfer approach.
PROCEDURE
How to respond
Opportunity status
99% confidence
Upcoming early-stage/planned procurement; bidding is not open.
View supporting evidence
Display status is “upcoming”, stage is “planning”, and notice type is “Preliminary market engagement notice on Find a Tender”.
Procurement route
99% confidence
Ofwat DPC model, with Southern Water planning an open tender for a CAP.
View supporting evidence
“Under the DPC model, Southern Water plan to openly tender for a CAP.”
Current notice
99% confidence
Preliminary market engagement notice.
View supporting evidence
Notice type is “Preliminary market engagement notice on Find a Tender”.
Submission deadline
99% confidence
Unknown.
View supporting evidence
No submission deadline is supplied.
Procurement timetable
99% confidence
Unknown.
View supporting evidence
Tender and contract dates are not supplied.
RISKS AND UNKNOWNS
Points requiring attention
Early-stage uncertainty
99% confidence
Final scope, procurement route, selection requirements, commercial terms and timetable may change or remain unconfirmed before any future tender.
View supporting evidence
This is an upcoming planning-stage preliminary market-engagement notice; no tender deadline, contract dates or detailed selection terms are supplied.
Scope uncertainty
99% confidence
The stated CPV list is neither guaranteed to be included in future tender notices nor exhaustive.
View supporting evidence
“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.”
Delivery complexity
98% confidence
The programme combines advanced recycled-water treatment, drinking-water treatment, long-distance transfer, pumping infrastructure, pipelines and substantial tunnelling under a DBFOM model.
View supporting evidence
Project description and stated DBFOM scope.
Source-date inconsistency
99% confidence
The supplied process publication timestamp is 6 February 2026, while the linked document publication timestamp is 6 October 2026.
ProcuraAxis analysis supplements, but does not replace, the original notice and tender documents. Always verify eligibility, deadlines and commercial terms with the issuing authority.
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