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    ContractsA483 Llandeilo and Ffairfach Bypass Scheme - Procurement Opportunity
    Open tender

    A483 Llandeilo and Ffairfach Bypass Scheme - Procurement Opportunity

    Contract value
    £80m
    Published 3 Aug 2026

    Welsh Government is seeking contractors for the A483 Llandeilo and Ffairfach Bypass scheme through a competitive procurement process with selection stage starting August 2026.

    🇬🇧United Kingdom· WalesPublished 3 Aug 2026· 2 months agoviaFind a Tender
    Contract value
    £80m
    Published 3 Aug 2026

    Decision brief

    4 fields
    • Contract value
      £80,000,000indicative
      Pounds sterling
    • Closing date
      Rolling
      No closing date published
    • Sector
      Construction
      Browse related listings
    • Location
      🇬🇧United Kingdom
      Wales

    Lifecycle

    Open

    Open tender — no closing date published. Opened 2 months ago.

    3 August 2026
    Open tender · no closing date published

    Brief

    The Welsh Government is procuring a contractor for the A483 Llandeilo and Ffairfach Bypass scheme using the Competitive Flexible Procedure under the Procurement Act 2023. The procurement will consist of a selection stage (maximum 5 bidders shortlisted over 25 days) followed by a 12-week tender stage. A two-stage Early Contractor Involvement (ECI) delivery model using NEC4 contracts will be used, with payment options NEC4 PSC Options C and E for Key Stages 3 and 4, and NEC4 ECC Option C for Key Stage 6. The contract will include Option X29 Climate Change with PAS2080 decarbonisation framework requirements, incentivisation mechanisms across all stages, and minimum 15% social value weighting. Standard workforce clauses will apply. The Welsh Government will provide detailed Ground Investigation data and site condition information at tender stage to support bidders. The Tender Notice is expected to be published around 17 August 2026.

    Track record

    1 award · 1 winner
    Thin record

    Only 1 prior award here — too little to read.

    In construction, Llywodraeth Cymru / Welsh Government has awarded 1 contract to 1 supplier.

    Who wins here
    1. VaultStone Ltd1× · 100%

    Across construction, the most active winners are HOLCIM UK LIMITED, TARMAC TRADING LIMITED, LINDUM GROUP LIMITED — the field to beat, or your route in as a partner.

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    Take action
    View tender on sourceFind a Tender

    Full notice and submission process on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-051dac

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    LC
    Buyer
    Llywodraeth Cymru / Welsh Government
    Sector
    Construction