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A483 Llandeilo and Ffairfach scheme

LLYWODRAETH CYMRU / WELSH GOVERNMENT

This public procurement record has 3 releases in its history.

Planning

03 Aug 2026 at 14:53

UK2 - Preliminary Market Engagement Notice
Planning

13 Oct 2025 at 14:00

UK2 - Preliminary Market Engagement Notice
Planning

22 May 2025 at 12:31

UK1 - Pipeline Notice
Summary of the contracting process

The "A483 Llandeilo and Ffairfach scheme" procurement process, initiated by the Llywodraeth Cymru / Welsh Government, is in the planning stage. The process involves infrastructure development in the construction and engineering sectors, aiming to progress a bypass scheme in the region of Llandeilo and Ffairfach, United Kingdom. The procurement is set under the Competitive Flexible Procedure as per the Procurement Act 2023, with upcoming key dates including the anticipated Tender Notice around the 17th August 2026. An engagement event on 27th October and a questionnaire deadline set for 10th November 2025 were part of preliminary market engagements to shape the Government's approach, focusing on topics like climate change and procurement strategy, alongside a signing of detailed groundwork insight at the tender stage.

This procurement opportunity presents significant potential for business expansion, especially for construction firms and multi-disciplinary consultancies experienced in project management and engineering services. With a value of £96 million gross, the project is an extensive one, drawing on various competencies such as construction management and engineering services. Firms that can navigate public sector procurement processes, particularly those able to demonstrate innovative environmental solutions and infrastructure expertise, are well-positioned to benefit from the planned works and subsequent contracts extending into 2032. Collaborative engagement, incentivisation mechanisms, and a focus on social value adherence provide additional avenues for contributing to project success and economic development within the region.

How relevant is this notice?

Notice Information

Notice Title

A483 Llandeilo and Ffairfach scheme

Notice Description

Welsh Government published a pre-market engagement notice on 13 October 2025 inviting the market to help inform the design of the delivery and contracting models, as well as the WG's procurement strategy more generally, for the A483 Llandeilo and Ffairfach Bypass scheme. This notice summarises the results of this engagement. The results and outcome of the market engagement exercise conducted in Autumn 2025 are summarised below: - The Welsh Government will use the Competitive Flexible Procedure under the Procurement Act 2023. The upcoming procurement process will consist of a selection stage to shortlist bidders (maximum 5 in number), followed by a tender stage to appoint a winning contractor. - A two-stage ECI delivery model will be used. X22 of the NEC4 ECC will not be used. - The payment options to be used for Key Stages 3 and 4 are NEC4 PSC Options C and E respectively. - The payment option to be used for Key Stage 6 is NEC4 ECC Option C. - As part of the market engagement exercise the market provided a number of suggestions for removing barriers to bidding, including reasonable levels of security, proportionate and equitable risk transfer/ sharing. Such matters have and continue to be given due consideration by the Welsh Government. - The Welsh Government is currently undertaking a range of activities to enable tenderers to better understand the site conditions and help optimise programme delivery. The information will be provided at the tender stage of the procurement process and will include detailed Ground Investigation data. - Option X29 Climate Change will be included alongside a requirement for the winning contractor to work within the framework of PAS2080 to support initiatives around decarbonisation. Specific decarbonisation and climate related targets are to be agreed between the parties during Key Stages 3 and 4. - Incentivisation mechanisms will be included and such mechanisms will span all Key Stages. - The weightings of price and quality are being finalised. - Social value however will attract a minimum of 15% weighting of the quality - As part of our commitment to socially responsible procurement, and to fulfil our commitments under the SPPP Act, the standard workforce clauses will be used in this tender element. - It is currently anticipated that the selection stage will have a duration of 25 days, i.e. bidders will have 25 days to compile their selection stage submissions. - It is currently anticipated that the tender stage will have a duration of 12 weeks, i.e. bidders will have 12 weeks to compile their full tender submissions. Please note that the Welsh Government expects to publish the relevant Tender Notice on or around week commencing 17th of August 2026. Tender Notice (UK4) publication will signify the start of the procurement exercise.

Planning Information

The engagement will consist of two parts: Firstly, an in-person event on Monday 27th October at the Parkgate Hotel Westgate St, Cardiff CF10 1DA at 10:30am. The purpose of the event is not to inform the design of the delivery and contracting models, or the WG’s procurement strategy per se; rather it is to give potential bidders an overview of the project. The event is open to potential bidders, if you wish to register your attendance, please email A483LlandeiloandFfairfach@arcadis.com To attend the event in person pre-registration is required, with a maximum number of 2 attendees per organisation. Upon registering your attendance, you will receive a copy of an invitation to complete a questionnaire to inform the design of the delivery and contracting models, and the Welsh Government’s procurement strategy. This questionnaire invites potential bidders to provide their views on a range of issues, including, procurement strategy, climate change, key commercial terms, project scope and potential barriers to bidding. If you are unable to attend the event and wish to share your views via our questionnaire please request a copy of the questionnaire via our mailbox A483LlandeiloandFfairfach@arcadis.com Potential bidders are requested to return their completed questionnaires by 12:00pm (midday) Monday 10th November 2025 to the following address: A483LlandeiloandFfairfach@arcadis.com

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-051dac
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/073320-2026
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
SME, VCSE
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

71300000 - Engineering services

71540000 - Construction management services

Notice Value(s)

Tender Value
£80,000,000 £10M-£100M
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
3 Aug 20261 weeks ago
Submission Deadline
Not specified
Future Notice Date
18 Aug 20264 days to go
Award Date
Not specified
Contract Period
30 Apr 2027 - 1 Apr 2032 4-5 years
Recurrence
Not specified

Notice Status

Tender Status
Planned
Lots Status
Planned
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
LLYWODRAETH CYMRU / WELSH GOVERNMENT
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
CARDIFF
Postcode
CF10 3NQ
Post Town
Cardiff
Country
Wales
Major Region (ITL 1)
TLL Wales
Basic Region (ITL 2)
TLL5 South East Wales
Small Region (ITL 3)
TLL52 Cardiff and Vale of Glamorgan
Delivery Location
TLL Wales
Local Authority
Cardiff
Electoral Ward
Cathays
Westminster Constituency
Cardiff South and Penarth

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

JSON Markdown

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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