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Bakerloo Line Upgrade Stage 1 Infrastructure Works

Transport for London · Public undertaking

In brief

Transport for London has announced plans to buy construction and architecture and engineering work. This is an early notice: there is nothing to bid on yet, but it tells you a tender may follow.

The notice does not state a value.

The contract runs for 89 months, starting 9 July 2027.

Built from the notice's own fields. Always check the official notice before you bid.

Can I win this?

Competition

Usually low: a median of 2 bids per contract for this buyer (from 47 awards in the last 12 months).

What the notice says

The Bakerloo Line runs through London from Harrow & Wealdstone, in the North, to Elephant & Castle in the centre with plans to extend South as part of the Bakerloo Line Extension initiative. The Bakerloo line fleet (72 Tube Stock) is now the oldest rolling stock operating in the UK with considerable costs to life-extend the fleet and significant risks to reduction in reliability. TfL therefore intends to introduce the new rolling stock onto the Bakerloo Line. The BLU Stage 1 Infrastructure works are required modify and upgrading the line's infrastructure to enable the introduction of the new rolling stock with the works expected to completed by, circa 2034. The core elements of the scope…Read the full description
The Bakerloo Line runs through London from Harrow & Wealdstone, in the North, to Elephant & Castle in the centre with plans to extend South as part of the Bakerloo Line Extension initiative. The Bakerloo line fleet (72 Tube Stock) is now the oldest rolling stock operating in the UK with considerable costs to life-extend the fleet and significant risks to reduction in reliability. TfL therefore intends to introduce the new rolling stock onto the Bakerloo Line. The BLU Stage 1 Infrastructure works are required modify and upgrading the line's infrastructure to enable the introduction of the new rolling stock with the works expected to completed by, circa 2034. The core elements of the scope include: • Reconstructing Stonebridge Park Depot to consolidate all maintenance activities. • Expanding Queen's Park Area to deliver additional stabling capacity. • Modifying London Road Sidings to retain and minimally adapt existing facilities for continued stabling usage, as well as introducing a Driver's Training Facility. • Waysides works to ensure the line's power supply, signalling systems and potentially gauging is compliant with the new rolling stock. This is a refinement of the scope presented during TfL's previous 2024 BLU Early Market Engagement with the current scope having moved the cleaning shed from London Road to Stonebridge Park and no longer required the cleaning shed at the front end of the programme. . A high-level summary of assets within the scope of this works is provided below: • DC Power • HV Power • LV power supply • Stations & Property • Platform Train Interface • Civils & Structures • Track • Signalling & communications • Depot maintenance sheds, fan roads & Stabling TfL are currently envisioning three competitions to deliver the scope. These three competitions are to appoint a: 1. Depots and Sidings Partner 2. Waysides Partner 3. Integrator

How to bid

  1. Read the full notice on Find a Tender, including any tender documents it links to.
  2. Register your organisation on the Central Digital Platform (through Find a Tender) if you have not already. Suppliers need to be registered to take part in procurements under the Procurement Act 2023.
  3. Follow the submission instructions in the notice; it does not name an e-tendering portal.

Timeline

  1. Preliminary market engagement notice · UK2, notice 011565-2026
  2. Preliminary market engagement notice · UK2, notice 012690-2026
  3. Preliminary market engagement notice · UK2, notice 024218-2026

About the buyer

Transport for LondonLast 12 months

Procurements

377

Awards

153

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From notice 011565-2026 on Find a Tender, first published 9 February 2026, last updated 17 March 2026. We last checked for changes on 28 September 2026.