Transport for London (TfL) has unveiled fresh details regarding its proposed Docklands Light Railway (DLR) extension across the River Thames to Thamesmead, and is urging Londoners to share their views.
The public consultation, which opened on June 5 and runs until July 16, invites feedback on plans that would see the DLR branch off after Gallions Reach, travel through Beckton Riverside on a viaduct, descend into a tunnel under the Thames, and emerge in Thamesmead to terminate at an elevated station on the site of Cannon Retail Park.
Why the Extension Is Needed
TfL states that both Beckton Riverside and Thamesmead currently lack direct rail services, limiting access to jobs, education, and services. With thousands of new homes planned in these areas, the extension aims to support up to 30,000 new homes and create up to 10,000 jobs. Journey times to the City would drop from about an hour to 35–40 minutes, with trains running every 8–10 minutes initially. The project also seeks to strengthen cross-river links in East London and encourage a shift from cars to sustainable transport.
Construction Timeline and Impact
TfL estimates the project would take five years to build, involving works in Beckton Riverside, Thamesmead, and beneath the Thames. Two 1.5km tunnels would be bored under the river. Most construction would not affect existing DLR services, though limited closures would be needed to connect the new railway to the current network.
Cost and Funding
The total cost is estimated at around £1.5 billion, subject to further design work. The government announced financial support in the Autumn Budget 2025, including a mechanism allowing the Mayor of London to borrow funds for construction. Repayment would come from direct government funding and new revenue from fares on the extended route.
Next Steps
After the consultation, TfL will finalise proposals and submit a Transport and Works Act Order (TWAO) application to the Secretary of State for Transport. No homes would be demolished. Subject to approval, construction could begin by 2029, with the extension and new stations at Beckton Riverside and Thamesmead opening in the early 2030s. Further extension to Bexley would require additional development and funding.
For more details and to contribute to the consultation, visit the TfL consultation website.
