Scope
Reference
ERFX1008708
Description
The Ordinary Watercourse known as the Whitchurch Brook flows through the centre of Whitchurch and has been identified by CCC as one of four Ordinary Watercourses in Cardiff posing a significant flood risk to the city. The brook flows from Thornhill south through Whitchurch for approximately 2.5km with its lower 0.85km length from Heol Gabriel culverted until its outfall at the River Taff.
There are extensive examples of fluvial and surface water flooding across the Whitchurch Brook catchment, and this flood alleviation scheme consists of:
• Discharge of Pre Commencement Planning Conditions
• Production of documents to gain Ordinary Watercourse Consent Approval
• Construction of Rain Gardens
• Remedial Works to Caedelyn Park attenuation basin
• Construction of watercourse flood walls
• Construction of flood embankments
• Highway improvements
• Interaction with Utilities
• Significant stakeholder engagement
• Significant Traffic Management
• Liaison with client project team
The Client is seeking to appoint a preferred contractor, based on a set of performance specifications and briefing documents (Client Scope). At this stage the final RIBA Stage 4 designs are to be further appraised and developed and the project is subject to funding confirmation.
The main objective of this PME is to determine market engagement and understand the markets appetite, capacity and capability to deliver large scale flood alleviation schemes.
Contract Value and Programme
This scheme is subject to the approval of internal and external (The Welsh Government) funding applications. The Full ITT documents are proposed to be issued Q3 2026.
Market Engagement Process
Interested suppliers are invited to:
Attend an online briefing at 10am on 14th November. A maximum of 2 members per organisation will be permitted to attend. Please submit the name and email address of the people you would like to attend the online supplier briefing through the messages tab on the Proactis Portal.
Submit expressions of interest via the Proactis Portal by 12:00:00 (noon) on Friday 7th November 2025.
Total value (estimated)
- £15,000,000 excluding VAT
- £15,000,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 1 January 2027 to 1 January 2027
- 1 day
Main procurement category
Works
CPV classifications
- 45000000 - Construction work
Contract locations
- UKL22 - Cardiff and Vale of Glamorgan
Engagement
Engagement deadline
26 November 2025
Engagement process description
How to Respond
Responses and queries should be submitted through the Proactis portal: Proactis - Supplier Network.
Reference: ERFX1008705
Deadline for Responses: 12:00:00 (noon) on Friday 7th November 2025
Participation
Particular suitability
- Small and medium-sized enterprises (SME)
- Voluntary, community and social enterprises (VCSE)
Submission
Publication date of tender notice (estimated)
1 October 2026
Contracting authority
Cardiff Council
- Public Procurement Organisation Number: PVHP-5769-YHRQ
County Hall
Cardiff
CF10 4UW
United Kingdom
Contact name: Thomas Williams
Telephone: +440000000000
Email: Thomas.Williams4@cardiff.gov.uk
Website: http://www.cardiff.gov.uk
Region: UKL22 - Cardiff and Vale of Glamorgan
Organisation type: Public authority - sub-central government
Devolved regulations that apply: Wales