Recommendation 11

Later, more detailed estimates showed that the costs were likely to be significantly higher, with the 11-platform design forecast to cost as much as £4.4 billion in June 2020, and the revised 10-platform design estimated to cost £4.8 billion in March 2023.21 The Department told us that it needs to try to work out what the right next step is, what the right options are to consider and how it gets to a better outcome.22 It intends to look at whether and where it may be appropriate to make some trade-offs in order to get to something that is more affordable, and acknowledged that it may have to take a substantial amount out of the £4.8 billion estimate to get to an affordable position.23 The costs and impacts of pausing construction