Scope
Reference
C001270.00
Description
TfW is looking to appoint a suitably qualified and competent contractor to undertake complex track works and associated level boarding works at Cardiff Queen Street and Cardiff Bay Stations. The work scope is comprised of various track renewal schemes in the areas of Cardiff Queen Street Station and Cardiff Bay, the primary elements being the remodelling of Cardiff Queen Street and the doubling of the line to Cardiff Bay. The works are naturally linked through their geographical location and through the requirement to deliver the works in a dedicated extended track possession in early 2027. Outside of Cardiff Queen St and Cardiff Bay, there are other remaining track works across CVL (including Pontypridd Station) to be delivered including level boarding sites where design is yet to be completed. A number of these sites are likely to be delivered under this contract once the complexity of works and available access is confirmed post design completion.
TfW intends to undertake a two stage process under the competitive flexible procedure including a request to participate stage and tender stage. Full details can be found in the Tender Documentation.
Total value (estimated)
- £9,800,000 excluding VAT
- £11,800,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 2 March 2026 to 31 August 2027
- Possible extension to 31 March 2028
- 2 years, 30 days
Description of possible extension:
Compensation events under the contract
Options
The right to additional purchases while the contract is valid.
Options:
Level Boarding works
CVL Non-complex track works
Pontypridd Station works
Main procurement category
Works
CPV classifications
- 45234100 - Railway construction works
- 34946000 - Railway-track construction materials and supplies
Contract locations
- UKL22 - Cardiff and Vale of Glamorgan
Participation
Legal and financial capacity conditions of participation
As described in the Tender Documentation
Technical ability conditions of participation
As described in the Tender Documentation
Submission
Enquiry deadline
8 October 2025, 12:00pm
Submission type
Requests to participate
Deadline for requests to participate
15 October 2025, 12:00pm
Submission address and any special instructions
sell2wales postbox facility
Tenders may be submitted electronically
Yes
Languages that may be used for submission
- Welsh
- English
Award decision date (estimated)
31 January 2026
Award criteria
| Name | Type | Weighting |
|---|---|---|
| Price | Price | 60.00% |
| Quality | Quality | 40.00% |
Other information
Applicable trade agreements
- Government Procurement Agreement (GPA)
- Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP)
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Competitive flexible procedure
Competitive flexible procedure description
Request to Participate Stage - Deadline 15/10/25 - all bidders that meet minimum pass/fail requirements will be invited to tender.
Qualified bidders will be invited to Tender Stage late October 2025 with deadline of mid/late December for return of Tenders
Justification for not publishing a preliminary market engagement notice
Due to the complexity and scale of the works, the following capabilities are essential:
Planning, ordering and management of Railway Engineering Trains and On-Track Machines
Provision and site management of Strategic Plant
Provision and site management of On-Track Plant, including POS compliance
These requirements significantly narrow the pool of capable suppliers. The market for such works is typically concentrated within Network Rail's regional track alliances, limiting broader competition
Documents
Associated tender documents
https://www.sell2wales.gov.wales/Assets/NoticeBuilder_FileDownload.aspx?id=346548
Scope Document
https://www.sell2wales.gov.wales/Assets/NoticeBuilder_FileDownload.aspx?id=346549
Proposed draft form of contract
https://www.sell2wales.gov.wales/Assets/NoticeBuilder_FileDownload.aspx?id=346550
Request to Participate Volume 1 Instructions
https://www.sell2wales.gov.wales/Assets/NoticeBuilder_FileDownload.aspx?id=346551
Request to Participate Volume 2 Questionnaire
Documents to be provided after the tender notice
Any and all suppliers that pass the request to participate stage that are invited to the Tender Stage will be provided with full access to the Tender Stage documents
Contracting authority
Transport for Wales
- Public Procurement Organisation Number: PPHD-4211-XYXJ
3 Llys Cadwyn
Pontypridd
CF37 4TH
United Kingdom
Region: UKL15 - Central Valleys
Organisation type: Public authority - sub-central government
Devolved regulations that apply: Wales