The proposal, estimated at £1.5 billion, involves partial demolition of the station, including concourses and train sheds, with a maximum height of 108.6 meters (356 feet).
Critics argue it would block protected views of St Paul’s Cathedral and set a dangerous precedent for other historic stations in London. The Victorian Society, along with several other conservation groups, has launched an appeal for a £60,000 fighting fund to oppose the project.
Actor Griff Rhys Jones, president of the Victorian Society, called the plans "insensitive, unnecessary, and a traduce to a famous gateway to London." The campaigners argue that if the Liverpool Street project goes ahead, it could put other historic stations, such as Victoria and Waterloo, at risk of similar disfigurement in the future.