We also challenged the Department on the likelihood of obtaining the more than £6 billion that the station at Euston is estimated to cost from the private sector. The Department suggested that the funding for Euston would likely be a mix of four components: private financing of the HS2 station; development receipts from commercial development; tax increment finance or contributions from local government; and some residual public funding. The Department told us that it had carried out some early market–testing of the potential for private financing and as a result believes it is a viable option. The Department said that once decisions are taken on the delivery model and spatial allocation, and the detailed design of the station has begun, there will be a better understanding of the potential commercial return and likely level of private investment.60