A group of five Conservative-led councils have lost their High Court challenge against plans to expand the capital’s ultra low emission zone.

The outer London boroughs of Bexley, Bromley, Harrow and Hillingdon along with Surrey County Council launched legal action in February over the Mayor of London Sadiq Khan’s proposals to extend Ulez beyond the North and South Circular roads.

At a hearing earlier this month, the local authorities’ lawyers said the mayor lacked the legal power to order the expansion of the zone by varying existing regulations and argued that there was an “unfair and unlawful” approach to collecting views on the plans.

The mayor’s legal team rejected the bid to quash his November 2022 decision to extend Ulez to all of London’s boroughs, arguing the move was “entirely lawful” and that “ample information” was provided for a “fair consultation”.

In a ruling this morning (July 28), Mr Justice Swift dismissed the councils’ case.

If it goes ahead, the extended Ulez will see drivers in outer London pay a £12.50 daily fee from August 29 if their vehicles do not meet the required emissions standards.

Watford Observer: London Mayor Sadiq Khan plans to expand the Ulez boundary to include all London boroughs from August 29 but faces a legal challenge in the High Court (Lucy North/PA)London Mayor Sadiq Khan plans to expand the Ulez boundary to include all London boroughs from August 29 but faces a legal challenge in the High Court (Lucy North/PA)

The new borders will reach Buckinghamshire, Essex, Hertfordshire, Kent and Surrey.

Friday’s ruling comes in the wake of last week’s Uxbridge and South Ruislip parliamentary by-election, where Labour’s failure to win ex-prime minister Boris Johnson’s seat was blamed on concerns around the expansion of Ulez.