Written Question·Department for Transport·UIN 90819
Great British Railways and Network Rail: Reorganisation
Tabled: 13 November 2025
Answered: 18 November 2025
Named DayQuestion
Mr Richard Holden
Conservative — Basildon and Billericay
To ask the Secretary of State for Transport, what assessments she has made of potential duplication of functions between Network Rail and Great British Railways, and their (a) cost and (b) impact, during the transition period.
Answer
Keir MatherNetwork Rail and its functions will become a foundational part of Great British Railways (GBR) as it is stood up. The GBR design process is underway, considering how all functions in Network Rail, DfT Operator, publicly-owned train operating companies (TOC) and parts of the Rail Delivery Group (RDG) should transfer to GBR. The costs of implementation are being considered as part of the business case for GBR setup.