Transport for London has announced a significant capacity boost for the capital's rail network, with plans to add more trains to three key London Overground lines starting in 2026. The move is designed to tackle rising passenger demand and forms part of a wider strategy to expand the network's reach across the city.
Which Lines Are Getting More Services?
The improvements will be rolled out in stages, coinciding with the start of a new operating concession. First Rail London Limited is set to take over the running of the London Overground from 3 May 2025.
The first enhancements will begin on the Mildmay line from May 2026. Passengers can expect extra peak-time trains. Furthermore, additional shuttle services will operate between Clapham Junction and Shepherd's Bush during busy periods to provide much-needed extra capacity.
Later in the year, the Windrush line will see more frequent trains from December 2026. The core section of the route, running between Highbury & Islington and Surrey Quays, will see services increase to an impressive 18 trains per hour.
Future Plans for the Weaver Line and Network Expansion
While a finalised date is pending, TfL has indicated it hopes to implement improvements on the Weaver line by May 2027. The proposed change would increase off-peak weekday services on both the Enfield Town and Cheshunt branches from two to three trains per hour.
This service uplift is part of a broader ambition from Mayor of London Sir Sadiq Khan and TfL to seize control of underused National Rail infrastructure. Key proposals include creating a new West London Orbital line using freight routes between Hendon and Hounslow, and taking over the 'Great Northern Inners' to form another line between Moorgate and Hertford/Welwyn Garden City.
Leadership Welcomes Improvements
David Thomas, Head of Concession for London Overground, emphasised the network's popularity, stating the new concession "puts customers at its heart, helping make the service even better." He expressed delight at welcoming First Rail London Limited as the new operating partner.
Graham Sutherland, Chief Executive Officer of FirstGroup, highlighted the Overground's role in London's connectivity, noting it serves around four million passengers every week. He said the company looked forward to "play our part in the success of this vital rail network."
These planned increases signal a committed investment in London's orbital rail network, aiming to provide more reliable and frequent journeys for millions of commuters and travellers across the capital.
