Awarded contract

South Kensington Station Capacity Upgrade Design and Build

Details

Value
£85,000,000
Duration
2 years
Topic
Construction work
Published
23 September 2026

Tender description

This notice confirms London Underground Limited's (LUL) intention to award the South Kensington Station Upgrade two-stage Design and Build contract to Costain Limited as a call-off contract under TfL's Infrastructure Improvement Framework. The proposed contract will be delivered through two (2) stages: • Stage 1: Detailed Design (NEC3 ECC Main Option E) • Stage 2: Construction (NEC3 ECC Main Option C) In accordance with the framework allocation process as described in Schedule 7, the South Kensington Station Capacity Upgrade project was allocated to Costain. The works will deliver an enlarged station with new platform, extended ticket hall, provision of step-free access from street to all platforms and improvements and modernisation to the station systems and staff welfare. The project will bring the new station infrastructure into operational use and realise the benefits of the wider South Kensington Station Upgrade investment, including increased station capacity. LUL's initial commitment under the contract is limited to Stage 1. Progression to Stage 2 is optional and subject to completion of Stage 1, confirmation of affordability, receipt of the necessary approvals and satisfaction of the contractual conditions for progression. The price for Stage 2 has not yet been agreed and will be developed during Stage 1. The contract value stated in this notice therefore includes an estimate for the potential Stage 2 works and should not be interpreted as an agreed or committed Stage 2 price. ## Contract award Title: South Kensington Station Capacity Upgrade Design and Build

Timeline

  1. Completed: Award date17 September 2026
  2. Completed: Award published23 September 2026
    Current notice
  3. Next: Contract expiry date18 June 2028in 2 years

About the buyer

London Underground Limited buys as a local organisation, and its contract opportunities are published alongside those of Transport for London. A London Underground supplier handbook guides contractors delivering work for its Capital Programmes Directorate.

A quarterly pipeline lists future opportunities across London Underground, Surface Transport and TfL Corporate. Pre-qualification for rail work involves RSSB RISQS and Achilles Link Up.

Over the past 5 years, most of London Underground Limited's contract awards have been in transport equipment, electrical equipment and lighting and repair and maintenance.

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