The proposed line would run on rail tracks currently dedicated to freight services, linking major transport hubs such as Old Oak Common and improving connectivity for communities in the west and north‑west of the capital.
TfL says the scheme could support the delivery of around 25,000 new homes and 11,500 jobs, with an estimated £1.3 billion in broader economic benefits if funding and planning approvals are secured.
A £6.65 million funding package was approved earlier this year to cover the next phase of design, modelling and public‑consultation work, and TfL will decide in 2027 whether to seek statutory powers to build the line.
David Rowe, TfL’s Director of Investment Planning, described the consultation as “an important opportunity for people to shape the future of this new London Overground route,” adding that better use of existing infrastructure can improve connections and support growth across the region.
Deputy Mayor for Transport Seb Dance welcomed the initiative, saying the new line would “transform travel in north and north‑west London” and help unlock homes, jobs and regeneration not only along the route but across the city.
The consultation invites Londoners to comment on the proposals, with TfL pledging to consider all feedback as it continues to develop the scheme alongside its partners.