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Caerphilly Interchange: Design & Build

Transport for Wales

This public procurement record has 3 releases in its history.

Tender

17 Jul 2026 at 16:09

UK4 - Tender Notice
PlanningUpdate

21 Nov 2025 at 13:53

UK2 - Preliminary Market Engagement Notice
Planning

10 Nov 2025 at 11:28

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

Transport for Wales is seeking a single design-and-build contractor to redevelop Caerphilly railway station and the adjoining bus interchange into an integrated multimodal transport hub. The works cover demolition of existing infrastructure and construction of new facilities supporting rail, bus, taxi and active-travel connections. The scheme also includes improved passenger amenities, retail space and public-realm improvements. It is intended to improve accessibility, passenger experience and sustainable travel while supporting regeneration and modal shift across Caerphilly and the wider Cardiff Capital Region. This is a major construction and engineering design opportunity, including railway and transport infrastructure works, delivered at Caerphilly railway station and the adjoining interchange.

The procurement has reached tender: Transport for Wales invited suppliers to participate through a two-stage competitive flexible procedure, using a selective process. The Request to Participate deadline is 26 August 2026 at 12:00, with enquiries accepted until 19 August 2026 at 12:00. The five highest-scoring participants will be invited to the Invitation to Tender stage, with tenders due in January 2027. The estimated value is £33,000,000 excluding VAT, or £39,600,000 including VAT. The contract is scheduled to run from 1 March 2027 to 17 March 2030, with an extension possible until 31 March 2031. Award is based on quality at 60% and price at 40%. Economic and technical selection requirements apply, with details in the tender pack. Additional works may be varied and extensions are available for completion of works.

This opportunity suits construction contractors able to take single-point responsibility for complex design-and-build transport infrastructure. Relevant capability includes demolition, railway-station construction, bus-interchange development, civil engineering, transport connectivity, passenger facilities, retail space and public-realm works. Suppliers will need the technical and economic capacity to deliver a large, integrated scheme involving rail, bus, taxi and active-travel interfaces, while managing construction around operational transport users and local communities where required by the tender documents. Experience coordinating multidisciplinary design and construction teams, transport stakeholders, passenger-accessibility requirements and sustainable-travel improvements would be well aligned with the project. The procurement is identified as suitable for small and medium-sized enterprises, making it relevant to capable SMEs as well as larger principal contractors and established delivery partnerships.

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Notice Information

Notice Title

Caerphilly Interchange: Design & Build

Notice Description

A two stage tender process, consisting of Request to Participate (R2P) stage and Invitation to Tender Stage (ITT) for the Design & Build of Caerphilly Interchange. The Caerphilly Interchange Project comprises the procurement of a single Design and Build contractor to deliver the redevelopment of Caerphilly railway station and adjoining bus interchange into a modern, fully integrated multi-modal transport hub. The works include demolition of existing infrastructure and construction of a new interchange facility incorporating rail, bus, taxi and active travel connectivity, alongside enhanced passenger amenities, retail space, and public realm improvements. The scheme forms a key component of wider regeneration ambitions and the South Wales Metro programme. The project will directly impact transport users, local residents, and businesses across Caerphilly and the wider Cardiff Capital Region, improving accessibility, passenger experience and sustainable travel options and is expected to support economic regeneration and modal shift.

Lot Information

Lot 1

Options: Additional works may be varied in as detailed in the ITT stage documentation.

Renewal: Extensions available for completion of works

Planning Information

TfW wish to engage with suppliers interested in construction works at Caerphilly railway station. We plan to hold an online session to appraise interested bidders of the likely scope of work, and our timescales and route to market. The event is likely to take place week commencing 26th of January 2026, with an expected date of 30th January. To register please email supplychain@tfw.wales for further details.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-05dd7c
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/067955-2026
Current Stage
Tender
All Stages
Planning, Tender

Procurement Classification

Notice Type
UK4 - Tender Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Selective
Procurement Method Details
Competitive flexible procedure
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

71 - Architectural, construction, engineering and inspection services

CPV Codes

45000000 - Construction work

45213321 - Railway station construction work

45234000 - Construction work for railways and cable transport systems

71320000 - Engineering design services

Notice Value(s)

Tender Value
£33,000,000 £10M-£100M
Lots Value
£33,000,000 £10M-£100M
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
17 Jul 20261 months ago
Submission Deadline
19 Aug 2026Expired
Future Notice Date
11 May 2026Expired
Award Date
Not specified
Contract Period
1 Mar 2027 - 17 Mar 2030 3-4 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Transport for Wales
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
PONTYPRIDD
Postcode
CF37 4TH
Postcode Area
Cardiff
Country
Wales
Major Region (ITL 1)
TLL Wales
Basic Region (ITL 2)
TLL5 South East Wales
Small Region (ITL 3)
TLL51 Central Valleys and Bridgend
Delivery Location
TLL Wales
Local Authority
Rhondda Cynon Taf
Electoral Ward
Pontypridd Town
Westminster Constituency
Pontypridd

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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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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