Tips and advice

London ULEZ: what is the Ultra Low Emission Zone?

The ULEZ expansion came into force on 25 October 2021 and further expansion is being planned in 2023. Our guide explains what it means for drivers in London

ULEZ london

London’s Ultra Low Emission Zone (ULEZ) was originally introduced in April 2019, covering the same Central London area as the London Congestion Charge. On 25 October 2021, the ULEZ boundary was extended to the North and South Circular roads that surround London.

Top 10 best electric cars 2022

The ULEZ charging zone superseded the T-Charge zone (the T stands for toxicity), and was introduced to reduce emissions of harmful nitrous oxides and particulates caused by older petrol and diesel cars in the areas of London it covers. It’s also intended to promote the adoption of lower emission and electric models, along with alternatives including public transport and cycling, with the aim of improving air quality in the capital.

Where is the ULEZ in London?

London ULEZ zone and October 2021 expansion

From 25 October 2021 onwards, the area covered by the London ULEZ was expanded from the previous Central London area to the North (A406) and South Circular (A206) roads that surround London. If you own a car that does not comply with the ULEZ emissions regulations, you have to pay a daily charge to drive in the zone.

ULEZ expansion

After its introduction in Central London in April 2019, the ULEZ boundary was expanded from the original zone out to the North and South Circular roads that surround London on 25 October 2021.

The charging rules for the zone remain unchanged, so the owner of a vehicle parked in the ULEZ zone who doesn’t drive the car on a particular day will not have to pay anything that day, even if the car is non-compliant.

Further expansion of the Low Emission zone to cover all of greater London has been proposed by London Mayor Sadiq Khan with a target date of 29 August 2023.

To support the latest plans, an expansion to the scrappage scheme is planned although the AA has already warned that the ULEZ plan will price a third of car owners in the proposed expansion area off the road entirely. Mr Khan said there was a need to support low income households and disabled people into buying ULEZ compliant vehicles, however, he did not specify details on how this would be achieved. A push for more cycling and public transport usage is a clear goal with incentives expected to be offered.

ULEZ charging: enforcement times and pricing

ULEZ charging operates 24 hours a day, every day, including all bank holidays with the exception of Christmas Day, and costs £12.50. This differs from the £15 per day congestion charge zone in central London that operates Monday to Friday between 7am to 6pm, as well as 12pm to 6pm on weekends and bank holidays. There is no charge between Christmas day and New Year's day.

Payment for ULEZ can be made up to 90 days in advance, or you can pay by midnight on the day you drive through the charging zone. If you fail to pay your ULEZ charge on time, you will face a penalty charge of £160 (reduced to £80 if you pay within 14 days).

You can pay the ULEZ charge online via the TfL website, or the ‘TfL Pay to drive in London app’ (available for both Apple and Android smartphones). Monthly payment for regular visitors to London is also available via TfL’s monthly ‘Auto Pay’ system.

How to ULEZ check your car

The good news is that more cars are exempt than you might have thought. To avoid the charge, you’ll need a petrol car that’s Euro 4 compliant, a diesel car that’s Euro 6 compliant, a hybrid that meets these requirements or an electric car.

Most petrol cars registered after 2005 comply (although some models from as early as 2001 meet the restriction), while your diesel car should comply if it was registered in or after September 2015. London taxis are also exempt, despite many of them featuring high-polluting diesel engines. If you’re in doubt, check your vehicle on the Government’s free checker.

Is ULEZ going to be replaced?

Road pricing being introduced in place of congestion charging and low emissions zones has been touted as a future option, however this is likely to be many years away as new technology would need to be developed and rolled out. 

For now the existing camera-based system is likely to remain, meaning drivers of non-compliant cars will need to be aware if they have entered the zone and pay the charge to avoid being fined.

Londoners have been invited to share their views with TfL on the future of such zones and their implementation.

What does ULEZ mean for car buyers?

When the ULEZ charging zone was originally introduced in central London, City Hall predicted its enforcement would result in a near-50% reduction in NOx emissions. It does, however, massively increase running costs for motorists and businesses that regularly drive older vehicles in London. The zone’s expansion only exacerbates this problem; more people who rely on older vehicles and can’t afford to upgrade to newer, compliant models will be affected.

If you own a car with a diesel engine and you didn’t buy it brand new within the last couple of years, it’s very unlikely that it’ll comply with the standards required under ULEZ. This will make driving into central London and large parts of greater London expensive, at £27.50 a day (this figure assumes you’re driving in an area also covered by the Congestion Charge, during its hours of operation).

As things stand, the only alternative to leaving your car at home or paying the ULEZ charge if your car is non-compliant is to upgrade to a car that is. The Government still provides a subsidy to those buying low-emissions vehicles through the Plug-in Car Grant scheme. All electric cars are currently exempt from the Congestion Charge until December 2025 via TFL's 'Cleaner vehicle discount,' and are also exempt from ULEZ charge.

It’s clear that reducing the number of diesel vehicles that don’t comply with the latest emissions standards will play a key role in plans to improve air quality and lower NOx levels in London and across the country.

Why was the ULEZ introduced?

The issue of pollution caused by diesel cars has been an increasingly hot topic of late. The levels of NOx measured in Britain have been above air pollution limits set by the EU since 2010. As the biggest city in the UK, London suffers from particularly poor air quality; some of the capital’s busiest roads had already exceeded their annual NOx limit in the first few days of 2017.

An investigation carried out by the Guardian and Greenpeace found that thousands of children are being exposed to damaging levels of NOx when they go to school or nursery, and the problem is most acute in London. The air around a nursery in Tower Hamlets in East London was found to contain four times the legal amount of NOx. A study conducted by King’s College London suggests that around 9,500 premature deaths a year occur in London due to NOx emissions.

Increased public awareness thanks to coverage in the media means London Mayor Sadiq Khan and the Government are coming under mounting pressure to tackle air pollution.

Best ULEZ exempt cars

Ford Fiesta 2018 front

Ford Fiesta 2018 front

Ford Fiesta

The Ford Fiesta is our Car of the year for 2019 with good reason. Not only is it very well equipped, but it’s practical, well built and more refined than the previous model. Plus, it’s just as fun to drive. You can drive any of the petrol or diesel models through London without paying the ULEZ charge.

Volkswagen up!

A robust small city car that is surprisingly roomy inside isn’t always easy to find but the smallest car from Volkswagen blends these traits admirably. The large windows give lots of visibility to spot cyclists and pedestrians as well giving you the sight lines you need when parking in a tight spot. Excellent fuel economy, cheap road tax, and low maintenance fees mean running costs are low too.

Skoda Octavia hatchback

Skoda Octavia

Our second Skoda on this list is the most practical family hatchback on sale, the Octavia. Its stretched Volkswagen Golf platform means it’s actually far more spacious than the VW, and the interior is rugged and built to last. It’s available with a range of frugal diesel and petrol engines that are all ULEZ compliant, yet it’s still quite fun to drive.

Mercedes A-Class

Mercedes A-Class

Adding a splash of luxury to this list is the Mercedes A-Class, which features a stunningly opulent interior. You can choose two large screens to show all your driving and infotainment information, and the entire cabin feels as elegant as the more expensive C-Class. Add smart looks to the mix, and you’ll attract lots of attention in the London traffic.

Hyundai Ioniq Hybrid

Hyundai Ioniq

All hybrids and electric cars are looked upon kindly in London, and our favourite is the Hyundai Ioniq. Available as both a hybrid and a fully electric car, the Ioniq is a real alternative to the Toyota Prius, yet undercuts it in price.

If you regularly drive in central London or other low emissions zones see our top 10 best congestion charge exempt cars.

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