Contractors Balfour Beatty and Amec have settled a major claim against London Underground over the £3.2bn Jubilee Line extension.
The joint venture partners entered into arbitration with London Underground last year. The dispute centred on time and cost overruns on the scheme, which was £1.4bn over budget and nearly two years late.

Sources close to the dispute claim the settlement, made late last year, ran into tens of millions of pounds.

A Balfour Beatty spokesperson confirmed that an agreement had been made but refused to discuss figures. He said: “The matter has been settled. It’s a matter of confidentiality and we are not in a position to add anything more.”

The 10-mile extension was the biggest construction project in Europe since the Channel Tunnel.