Published date: 4 September 2025

Closed opportunity - This means that the contract is currently closed. The buying department may be considering suppliers that have already applied, or no suitable offers were made.


Closing: 11 September 2025, 9am

Contract summary

Industry

  • Installation services of tanks - 51810000

Location of contract

London

Value of contract

£500,000 to £1,000,000

Procurement reference

C4N99297001

Published date

4 September 2025

Closing date

11 September 2025

Closing time

9am

Contract start date

27 March 2026

Contract end date

26 March 2027

Contract type

Service contract

Contract is suitable for SMEs?

No

Contract is suitable for VCSEs?

No

Description

Kilnbridge have secured the HS2 Old Oak Common Station Works Package for the construction of Urban Realm elements and the Head Houses and Ancillary Buildings. Part of these works require the installation of two, precast concrete attenuation tanks to the eastern part of the site. These tanks are a Subcontractor's design portion.
Eastern HS2 Attenuation Tank
• Area 1115m2
• Volume 1165m3
• Tank Depth 1.1m
• Void Ratio 0.95
Eastern HS2 Dirty Water Tank
• Area 1115m2
• Volume 350m3
• Tank Depth 1.6m
• Void Ratio 0.95

Kilnbridge are seeking the services of suitably qualified and experienced Sub-subcontractor who shall be responsible for developing the Contractors Detailed Design to Design for Construction & Manufacturing. Taking from RIBA 4 to RIBA 5 stage. The Sub-subcontractor shall be responsible for providing their own design and design for construction drawings, compliant with the design intent of the Contractors Designer.
The Sub-subcontractor will be responsible for ensuring the submission and acceptance of their design from the Contractor and Contractor's design consultant through the Subcontractor.
Works include the design , manufacture and supply of precast base, walls and roof units to site. Scope to include for, but not limited to, technical assurance, BIM modelling, asset scheduling and labelling, drawings for approval, as built drawings, indicative construction sequence methodology, submission of design packs, material approvals, and sustainability and environmental management.
Sub-subcontractor to interface their design with incoming services as detailed on the construction drawings.
Construction is currently forecasted to be carried Q2 2026

More information

Links

About the buyer

Contact name

Clare Llewellyn

Address

McDermott House, South Crescent
London
E164TL
UK

Telephone

07933529243

Email

supplychain@kilnbridge.com