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PROCUREMENT OPPORTUNITY

A483 Llandeilo and Ffairfach Bypass Project

Llywodraeth Cymru / Welsh Government · Tender notice on Find a Tender

Tender information last checkedLast checked 25 Sept 2026, 14:51.

Opportunity overview

This procurement relates to the award of a contract for the design development of the A483 Llandeilo and Ffairfach bypass project, and the provision of assistance with relevant statutory procedures. Subject to the outcome of the statutory procedures and the performance of the Contractor, the contract provides for the Contractor to be appointed to undertake detailed design and construction of the works. This Tender Notice signifies the start of the procurement exercise and uses the Competitive Flexible Procedure (CFP) under the Procurement Act 2023.

Classification

  • CPV45000000 — Construction work

Lots

  • Lot 1£80m

Documents and notices

  • Tender notice on Find a TenderOpen source ↗
  • Bidders will need to click on the 'Register Interest' button on the Delta Portal and then login where you will be taken directly to the opportunity response where the documentation can be found. The opportunity on the Portal is being managed by Mott MacDonald.Open source ↗
  • Bidders will need to click on the 'Register Interest' button on the Delta Portal and then login where you will be taken directly to the opportunity response where the documentation can be found. The opportunity on the Portal is being managed by Mott MacDonald.Open 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.

Scope, procedure and submissions

Id
C113/2026/2027
Status
active
Procurement Method
selective
Procurement Method Details
Competitive flexible procedure
Main Procurement Category
works
Above Threshold
Yes
How to submit
The procurement will follow the Competitive Flexible Procedure (CFP) in accordance with the Procurement Act 2023. The procurement process will follow a two stage process: Stage 1: Conditions of Participation stage consisting of the Common Assessment Standard (CAS) question set along with supplementary project specific questions. Up to five (5) highest scoring compliant responses with be shortlisted for Stage 2. Stage 2: Tender Stage. The shortlisted companies from the Conditions of Participation Stage (Stage 1) will be invited to the submit their tenders. This will consist of both technical and commercial submissions. https://www.delta-esourcing.com/respond/9XDC94DQAC
Expression Of Interest Deadline
24 Sept 2026, 12:00
Published risks
The Welsh Government reserves the right to modify the Contracts awarded during their term in accordance with Section 74 and Schedule 8 of the Procurement Act 2023, including where changes arise through the NEC4 compensation event process or the materialisation of known risks identified in the tender documentation

Legal basis

Id
2023/54
Scheme
UKPGA

Procedure

Features
The procurement process will follow a two stage process: Stage 1: Conditions of Participation stage requiring completion and submission of the Wales Construction Procurement Supplier Qualification Questionnaire, which includes the Common Assessment Standard (CAS) question set along with supplementary project specific questions. Up to five (5) highest scoring compliant responses with be shortlisted for Stage 2. Stage 2: Tender Stage. The shortlisted suppliers from the Conditions of Participation Stage (Stage 1) will be invited to the submit their tenders. This will consist of both technical and commercial submissions. The Technical scoring will contribute 70% of the Tenderer’s overall submission. The technical questions will consist of the following, all of which are weighted as set out in the tender documents: Q1 - Approach to delivery and organisational structure Q2 - Proposed Team - Key Persons Q3 - Reduction of carbon emissions Q4 - Key Challenge 1 - Railway line and residential properties interface Q5 - Key Challenge 2 - Works within the River Towy floodplain Q6 - Social value and community benefits Evaluation mechanisms and methods are explained in the tender documents. Commercial The commercial scoring will contribute 30% of the Tenderer’s overall submission. Relevant subsection weightings and evaluation mechanisms and methods are explained in the tender documents.

Covered By

GPA

Submission terms

Electronic Submission Policy
allowed

Languages

en
cy

Enquiry period

Ends
17 Sept 2026, 12:00

Expected award period

Ends
1 Mar 2027, 23:59

Lot Details

No Lots Division Rationale
not applicable

Contract terms

Financial Terms
As set out in the tender documentation

Lots and requirements

Entry 1
Id
1
Status
active
Has Renewal
Yes

Value

Including VAT
96,000,000
Amount
80,000,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
quality
Name
Technical
Description
The technical questions will consist of the following, all of which are weighted as set out in the tender documents: Q1 - Approach to delivery and organisational structure Q2 - Proposed Team - Key Persons Q3 - Reduction of carbon emissions Q4 - Key Challenge 1 - Railway line and residential properties interface Q5 - Key Challenge 2 - Works within the River Towy floodplain Q6 - Social value and community benefits

Numbers

Entry 1
Number
70
Weight
percentageExact
Criterion 2
Type
price
Name
Commercial
Description
The commercial scoring will contribute 30% of the Tenderer’s overall submission. Relevant subsection weightings and evaluation mechanisms and methods are explained in the tender documents.

Numbers

Entry 1
Number
30
Weight
percentageExact

Selection criteria

Criteria

Criterion 1
Type
economic
Description
as described in the Wales Construction Procurement Supplier Qualification Questionnaire, part of tender documentation
Criterion 2
Type
technical
Description
s described in the Wales Construction Procurement Supplier Qualification Questionnaire, part of tender documentation
Criterion 3
Description
Suppliers are required to complete and submit the Wales Construction Procurement Supplier Qualification Questionnaire (WCPSQQ). The WCPSQQ consists of questions on debarment and mandatory exclusions, the Common Assessment Standard (CAS) question set along with supplementary project specific questions. The WCPSQQ is a combination of pass/fail questions and scored questions.
For Reduction
Yes

Suitability

Sme
Yes

Contract period

Starts
1 Apr 2027, 00:00
Ends
1 Dec 2037, 23:59
Max Extent Date
12 Jan 2040, 23:59

Renewal

Description
The Welsh Government reserves the right to modify the Contracts awarded during their term in accordance with Section 74 and Schedule 8 of the Procurement Act 2023, including where changes arise through the NEC4 compensation event process or the materialisation of known risks identified in the tender documentation.

Items and delivery

Item 1
Id
1
Related Lot
1

Additional Classifications

Entry 1
Scheme
CPV
Id
45000000
Description
Construction work

Delivery locations

Entry 1
Region
UKL14
Country
GB
Country Name
United Kingdom

Published documents

Entry 1
Id
L-1
Document Type
biddingDocuments
Description
Bidders will need to click on the 'Register Interest' button on the Delta Portal and then login where you will be taken directly to the opportunity response where the documentation can be found. The opportunity on the Portal is being managed by Mott MacDonald.
Entry 2
Id
L-2
Document Type
technicalSpecifications
Description
Bidders will need to click on the 'Register Interest' button on the Delta Portal and then login where you will be taken directly to the opportunity response where the documentation can be found. The opportunity on the Portal is being managed by Mott MacDonald.
Entry 3
Id
conflictOfInterest
Document Type
conflictOfInterest
Description
Not published
Entry 4
Id
079893-2026
Document Type
tenderNotice
Notice Type
UK4
Description
Tender notice on Find a Tender
Published
21 Aug 2026, 12:39
Format
text/html

Buyer, suppliers and contacts

Organisation 1
Name
Llywodraeth Cymru / Welsh Government
Id
GB-PPON-PQYQ-3841-BHTP

Identifier

Scheme
GB-PPON
Id
PQYQ-3841-BHTP

Address

Street Address
Gwasanaethau Caffael Corfforaethol / Corporate Procurement Services
Locality
Cardiff
Postal Code
CF10 3NQ
Country
GB
Country Name
United Kingdom
Region
UKL22

Contact

Roles

buyer

Details

Classifications

Entry 1
Scheme
UK_CA_TYPE
Id
publicAuthorityCentralGovernment
Description
Public authority - central government
Entry 2
Scheme
UK_CA_DEVOLVED_REGULATIONS
Id
GB-WLS
Description
Welsh devolved regulations apply

Recorded locations

  • Buyer location · Cardiff · UKL22 · CF10 3NQ · United Kingdom
  • Delivery location · UKL14 · United Kingdom

Notice and amendment history

2 published notice versions reviewed by ProcuraAxis.

2 VERSIONS
  1. 073320-2026Preliminary market engagement notice on Find a Tender ·
  2. 079893-2026Tender notice on Find a Tender ·