TenderlineUK
Procurement Intelligence
Search
Find a TenderPast planning noticePreliminary market engagement notice
Published 21 May 2025, 14:47 BST

Official UK procurement notice

London Overground Core Windrush Line Transmission Design and Build

Official notice

Authority: Docklands Light Railway Limited (Public body)

WorksAbove thresholdUtilities
Sectors: Construction & Civil Engineering (45) Delivery: London (UKI)
Planned pipeline valueValue not publishedpipeline notice, not a live tender
Tender notice expected 11 May 2026from the planned procurement notice
Contract term 1 yr 8 moends 1 Jul 2028 · starts 2 Nov 2026

What is being bought

Published requirement description

London Overground requires a contractor to upgrade the existing Transmission system installed on the Core Windrush Line.

It is proposed that the successful contractor will undertake the both the design and build elements of the scheme.

Further details will be provided within the MSQ documentation.

CPV: Urban railway works

The lotProcurement structure

single lot · no lot value published
Lot #1Planned 1 yr 8 mo
Contract period: 2 Nov 2026 – 1 Jul 2028 (1 yr 8 mo)
Delivery: London
45234120 Urban railway works

Procedure terms & legal framework

From the official record
Legal basis
UKPGA · 2023/54 Procurement Act 2023
Procurement category
Works
Notice status
Past planning notice
Procurement threshold
Above threshold (FTS publication)
Regulatory regime
Utilities
Commercial structure
Stand-alone contract (no framework)
Competition type
Competitive procedure
GPA / WTO covered
Unspecified in notice
Recurring procurement
Unspecified in notice
First published
21 May 2025, 14:47 BST
Last source update
17 Apr 2026, 15:18 BST
Authority reference
WS2093401844
FTS notice number
2026/S 000-035304
Latest notice
Preliminary market engagement notice (UK2)
Classification (CPV)
Urban railway works
Delivery area
London (UKI)
Official registry OCID
ocds-h6vhtk-051b27 Find a Tender

How it was run

Official notice
Submission deadline
—

Timeline

21 May 2025 → 2 Nov 2026 · 5 dates
  1. Planning notice published
    21 May 2025, 14:47 BST
  2. Market engagement392 days ago
    1 Oct 2025, 23:59 BST

    On the 30th June 2025, the Railway Industry Supplier Qualification Scheme (RISQS) was used to identify potential contractors to shortlist for participation in the formal procurement process expected to commence in December 2025.

    In order to do that the following Railway Industry Commodity Classification List (RICCL) codes were selected were:

    B.C.2.1.6: Lineside Telephones / Commission + Design + Install + Overhaul

    B.C.2.2.1: Transmission Systems / Commission + Design + Install + Overhaul

    B.C.2.2.6: Telecomm Cabling (Data Cabling) / Commission + Design + Install + Overhaul

    B.C.2.2.7: Telecomm Cabling (Fibre) / Commission + Design + Install + Overhaul

    B.C.2.2.8: UPS / Commission + Design + Install + Overhaul

    Audit CDM Scope: CDM Principal Contractor AND CDM Principal Designer, Infrastructures: Network Rail, Regions Greater London

    RISQS identified 13 contractors with the ability to undertake the works identified by London Overground. Market engagement will commence with these suppliers only.

    Further information about RISQS can be found below

    www.find-tender.service.gov.uk/Notice/007184-2025 ↗

    A market sounding questionnaire will be issued for the 13 Contractors to complete, submit and express an interest in formally participating with the tender process later in 2025 or early 2026.

  3. Latest notice published195 days ago
    17 Apr 2026, 15:18 BST
  4. Tender notice expected170 days ago
    11 May 2026, 23:59 BST
  5. Today
    29 Oct 2026
  6. Contract startsin 3 days
    2 Nov 2026

Notice history

3 events · 3 releases on Find a Tender · since 21 May 2025
  1. Pipeline notice published
    21 May 2025, 14:47 BST
    UK1
  2. Preliminary market engagement notice published
    21 Aug 2025, 12:30 BST
    UK2
  3. Preliminary market engagement notice published
    17 Apr 2026, 15:18 BST
    UK2
Published amendments (1)

The procurement process was unavoidably delayed and therefore the dates for contracting have been updated. We are aiming to get the ITT docs out by mid May 2026.

Commercial outcome & contract awards

Pipeline notice
Awards (0)
No award published
Contracts (0)
No contract published
Bid statistics
No aggregate bid statistics published

Contracting authority & participating public bodies

Transport for London

Contracting authorityPublic authority - central government GB-PPON: PHMT-6197-NWNZ 5 Endeavour Square, London, London, E20 1JNContact name, email, phone

Official documents & specifications (3)

Official links; attachments are not copied

Notices published for this procedure