The sum, which covers fees for technical consultants, lawyers, financial advisers and officials working on the project, is a large increase on the figure of £100m-£130m previously mentioned by officials.
The amount covers what has been spent by the Department of Transport, London Underground and private bidding companies, but omits sums outlayed by the London mayor’s agency, Transport for London, which has run up legal costs as it challenges the scheme.
Current estimates of the total cost of the public-private partnership could total up to £11bn.
Mark McMullen joins the private client services team from Smith & Williamson
Merger between Clear & Lane Chartered Accountants and Magma Chartered Accountants was finalised on 3 February
BDO has taken its new partner intake to 23 during the first half of its financial year, including the appointment of five partners in five weeks
The firm reports 7.6% global fee income growth for the year ending 31 December 2016