The expansion of ultra-low emission zone (ULEZ) to outer London boroughs has been ruled lawful by the High Court.

Five Conservative-run councils had launched legal action back in February over the expansion.

The scheme will come into force from 29 August and see the drivers of the most polluting vehicles charged £12.50 a day to use them.

The hope of those behind the plan is it will incentivise people to use cleaner transport alternatives and, as a result, help improve the city’s air quality.

Transport for London has claimed only a small number of people will be impacted, with nine out of 10 vehicles compliant with ULEZ requirements.

But the councils challenged the rollout in the courts, saying the capital’s Labour mayor, Sadiq Khan, had exceeded his legal powers with such a large expansion of the scheme.

The five local authorities – Hillingdon, Bexley, Bromley and Harrow in London, plus Surrey County Council – also claimed the consultation on the plan was flawed, and not enough information had been shared over the scrappage scheme, which provides payouts to people prepared to ditch their vehicles.

While other parts of the challenge were dismissed in April, the councils were granted a hearing in the High Court, and the two sides fought it out over two days of evidence.

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The ruling comes a week after the debate around ULEZ dominated a local by-election and the fallout from the results.

The seat of Uxbridge and South Ruislip – left vacant by the departure of Boris Johnson – seemed ripe for the taking for Labour in light of recent polling that gives the party a double digit lead over the Tories.

But the Conservative candidate managed a narrow victory – albeit seeing the majority for the party fall from over 7,000 to less than 500 – having turned its campaign into a referendum on ULEZ.

Since then, Labour have been in turmoil over the policy and whether to support it, with Sir Keir Starmer saying he had asked the mayor to “reflect” on the impact of the scheme.

However, Mr Khan has said he is committed to ULEZ expansion, telling Sky News: “It was a difficult decision to take. But just like nobody will accept drinking dirty water, why accept dirty air?”

‘The right decision’

Following the ruling, Mr Khan told Sky News: “This landmark decision today is good news for London, because it means from the end of August we can make greater progress in cleaning up the air in outer London.

“The decision to expand ULEZ was a difficult one for me to take, it wasn’t taken lightly, but it’s essential we make more progress cleaning up the air in our city.

“Every year in our city, there’s around 4,000 premature deaths directly linked with air pollution and children with stunted lungs forever.”

Referencing the opposition to the scheme and the debate surrounding it, Mr Khan said: “I have been listening and I will carry on listening” but added that the High Court ruling was “quite clear”.

He went on to say that the 10 boroughs with the highest number of premature deaths are all in outer London.

Asked if ULEZ was the reason Labour failed to win the Uxbridge by-election last week, Mr Khan said: “The decision to expand ULEZ was a very difficult decision for me to make.

“It wasn’t one I took lightly, but it was the right one.”

Last month, the Greater London Authority commissioned a report by air quality and climate change consultants Aether into pollution levels in London.

It found that while progress had been made to reduce air pollution concentrations since 2016, the city’s population was still forecast to remain exposed to nitrogen dioxide and particulate matter in concentrations above the air quality guidelines recommended by the World Health Organisation (WHO) in 2030 “unless further significant action is taken to reduce concentrations”.

Sadiq Khan will be breathing a sigh of relief

Rob Powell

Political correspondent

@robpowellnews

After a bumpy week for the Mayor’s ULEZ expansion, this is very good news for Sadiq Khan.

If this legal challenge had succeeded, it could have meant a delay to next month’s rollout as elements of the consultation process were run again.

But whilst this legal hurdle has been cleared, political ones remain.

Labour leader Sir Keir Starmer has made it clear that he wants there to be a rethink– after the expansion plan cost his party the Uxbridge by-election last week.

The London Mayor has said he’s open to ideas to help people impacted by the charge but is determined to plough on with the central policy on the current timetable.

That opens a rift between party headquarters and one of the most senior elected Labour politicians in the country.

A compromise could involve the scrappage scheme being bolstered further but that would likely come with more requests for cash from Central government.

The Tories will attempt to turn next spring’s London mayoral elections into a referendum on ULEZ expansion.

The hope in City Hall will be that by forcing this controversial policy through now without delay, tempers may have cooled by the time Londoners head to the ballot box.

It also found the most deprived communities of London still more commonly live in the most polluted areas and that the areas that had the lowest air pollution concentrations had a disproportionately white population.

“The exposure inequalities experienced between ethnic groups are much more pronounced in outer London than inner London,” the consultants found.

But Steve Tuckwell, the Conservative MP for Uxbridge and South Ruislip who campaigned against ULEZ expansion during the by-election, said constituents had sent a “clear message” to the mayor to “halt your ULEZ expansion”.

“Londoners cannot go on being ignored by the Labour Party, who are making the choice to expand ULEZ, saddling families and businesses with a £4,500 a year charge – a tax on carers, parents, patients, sole traders and all hard-working Londoners,” he said.

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His words were echoed by Susan Hall, the Conservative candidate who will take on Mr Khan at next year’s mayoral election, who said: “While it is a shame the High Court did not find the ULEZ expansion to be unlawful, there is no denying that Sadiq Khan’s plans will have a devastating impact on families and businesses across the city.

“If I am elected mayor, I will stop the ULEZ expansion on day one and set up a £50m pollution hotspots fund to tackle the issue where it is, instead of taxing people where it isn’t.”

As well as putting pressure on Mr Khan, the ULEZ policy also prompted a debate within the Tory Party and emboldened the more climate sceptic wing of the party, who want Rishi Sunak to slow down the transition to net zero.

Downing Street has confirmed ministers are scrutinising existing pledges “in light of some of the cost of living challenges”, with Mr Sunak saying some green measures must be “proportionate and pragmatic” instead of adding cost and “hassle” to households.