London Assembly Backs TfL Takeover of Great Northern Services to Boost Frequency and Support Housing Growth

The London Assembly Transport Committee has thrown its support behind plans for Transport for London (TfL) to take over the Great Northern route from Moorgate to Welwyn Garden City and Stevenage, a move aimed at improving service quality and capacity.

TfL formally submitted its application to assume control of the line in September, promising increased train frequency and enhanced reliability. The proposal is now under consideration by the Transport Secretary, with ministers facing growing pressure to approve the devolution.

Under the plans, Crews Hill station — currently the tenth least-used station in Greater London — would receive significant upgrades to accommodate more frequent services than the current four trains per hour during peak times. The station lies within one of twelve areas shortlisted for large-scale housing developments, which could include up to 21,000 new homes, making improved rail services essential to meet future demand.

On Tuesday, the Mayor of London told the Local Democracy Reporting Service that securing TfL control of the route is one of his top priorities. He said:"I'm lobbying the government for the devolution of the Great Northern line, which will really help in Crews Hill and Enfield."

Transport Committee Chair Elly Baker also voiced cross-party support in a letter to the Transport Secretary, emphasizing the benefits of devolution. She stated:"National Rail lines play an important role in London's transport network, but these services are currently under-performing and under-delivering for Londoners. Devolution to TfL could improve reliability, fare integration, customer information, and service frequency, unlocking housing delivery and supporting economic growth in both London and Hertfordshire."

If approved, the move would mirror previous devolution schemes that allowed TfL to enhance inner-city rail services, providing more frequent and reliable transport options while helping meet the region’s growing housing and economic needs.