Right to Information documents released show expenditure made to progress design, engineering and other critical works for the major project remains on budget and on time. The overall budget for the project is $689 million, the documents show that the project team spent more than $30 million on works in the second half of 2015, including more than $23 million spent on construction, with other costs including planning, IT and governance. Construction works are now scaling up to prepare the Liverpool Street forecourt for the installation of a temporary inpatient facility.