West Ham United's move to the Olympic Stadium could cost an extra £50million after it was confirmed the venue’s roof needs extending.
The cost however, is not likely to fall upon the Hammers, and won't jeopardise their plans for a 2016 move in.
The stadium roof needs extending and strengthening to cover the retractable seating that is to be situated over the running track.
The London Legacy Development Company is in talks with Balfour Beatty Constructors about the increase, which could take the overall cost of the revamp to over £200million.
West Ham will may £15million for a 99-year lease of the Olympic venue, as well as annual rent, but any other costs will be covered by contingency funding.
A stadium spokesman said: "The project still has close to two years to run and we are in no doubt the Balfour Beatty can deliver the programme as planned.
"This is a complex project and there are always ongoing discussions about specific elements within it."
Posted on 21/10/2014