Costs to complete the Liverpool hospital designed by NBBJ, which was left in limbo by Carillion’s collapse, look set to rise, with the NHS trust responsible for the scheme admitting the amount of cash needed to finish the job been “underestimated”.

In papers published ahead of a monthly board meeting held last week, the trust said the cost of demolition and asbestos removal work at the current Royal Liverpool hospital site had gone up while Laing O’Rourke had discovered other problems at the scheme after being appointed Carillion’s replacement in October.

Now the trust has revealed that NBBJ, who were the original architects on the scheme, and Arup, which carried out a review of what Carillion had built last year, have been drafted in to review and agree the remedial solutions for the structural defects which have been found.

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