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Annual review 2022

Northern line extension

Going further on the Northern line


Technological innovation was central to our role as lead designer on the £1.1bn scheme to extend the Northern Line by 3km, including two new stations at Nine Elms and Battersea that are revitalising the surrounding area.


Northern Line Extension


FLO – a joint venture between Ferrovial Construction (UK) and Laing O’Rourke




Civil, structural, mechanical, electrical, public health, architectural design, and rail systems and integration services


At 5.28am, 20 September 2021, passengers boarded the first service ever to run from Battersea Power Station in south-west London, on London Underground’s Northern Line Extension (NLE). Construction of our design was completed within six years and delivered a 3km extension to the Charing Cross branch of the Northern Line. The £1.1bn investment also provided two new stations, at Nine Elms and Battersea on the project that saw us providing ongoing support to the contractor until June 2022 to optimise its performance.

A catalyst for transformation

After an incredible effort from the huge number of people who worked on this project, the two new stations at Nine Elms and Battersea Power Station are open – the first new stations on the Northern Line for 80 years. They will hugely improve connectivity between these areas and the rest of London, and play a major part in the capital’s recovery from the pandemic by supporting thousands of new jobs, homes and businesses.”

Sadiq Khan, Mayor of London