Thames Water creditors offer golden share to avoid nationalisation

A consortium of institutional investors holding the bulk of Thames Water’s debt has proposed giving the government a “golden share” to block a planned nationalisation by the new prime minister, Andy Burnham. The mechanism would grant ministers a veto over major decisions and hostile takeovers. The move represents a significant concession by lenders seeking to retain control of Britain’s largest water utility.

London & Valley Water (L&VW), which represents 100 creditors holding £17bn of the utility’s £21bn debt, outlined the concession as part of a revised £10bn rescue package. The offer includes a decade-long ban on investor dividends, unless the company is publicly listed, and an expanded social tariff to lower bills for vulnerable households. These terms are designed to address political demands for greater public accountability.

The manoeuvre is a direct response to Burnham’s stated intention to place the debt-laden company into a special administration regime (SAR). L&VW warned that this form of temporary public ownership would shift the burden of running the business onto taxpayers. The consortium estimates the potential cost of a SAR to the public purse at £2bn.

For investors in UK infrastructure, the revised bid highlights the escalating political risk surrounding privatised utilities buckling under historical debt. The consortium has been trying to take ownership of Thames Water since a failed attempt to sell the business to US group KKR last year. Those plans were complicated last month when Emma Reynolds, then environment secretary, raised concerns about the deal’s terms with regulator Ofwat.

Reynolds was replaced by Angela Eagle in a cabinet reshuffle on Monday, altering the regulatory landscape L&VW must now navigate. “L&VW agrees that there is an opportunity to enhance the way local government, regulators and Thames Water work together, granting greater public controls on critical business issues to improve delivery of complex, essential infrastructure projects, and demonstrate shared accountability,” the company said. “The consortium is willing to make significant new commitments to grant greater controls and oversight to ministers, implemented through a ‘golden share’.”

A spokesperson for L&VW added: “Under our plan, customers will have strong protections, regulators and government will have enhanced oversight, and there will be greater controls to ensure Thames Water delivers the record investment needed to improve environmental and operational performance. The consortium is eager to engage with new ministers to discuss their priorities and present a revised proposal.” Thames Water currently serves 16 million customers across London and the Thames Valley.