Bigger Parking Charges for Bigger Cars: Bath's Plan Signals a Wider Shift in UK Parking Policy

If you drive a large SUV, a seven-seater, or anything with a substantial kerb weight, your next trip into Bath could cost noticeably more than your neighbour's compact hatchback, even if you park in exactly the same bay for exactly the same amount of time. That's the direction Bath and North East Somerset Council is now exploring, alongside a separate hike to park-and-ride charges that will affect thousands of commuters and visitors who currently rely on the city's edge-of-town sites to avoid driving into the centre altogether.

It's a small, local story on the surface. But scratch beneath it and you find a debate that's been simmering across UK local government for a couple of years now: should the size and weight of your car determine how much you pay to park it?

What's Actually Being Proposed

According to Bath Voice, the council is considering a tiered parking charge structure that would see larger vehicles charged more than smaller ones for on-street and possibly off-street parking. At the same time, prices at the city's park-and-ride sites, the car parks on the outskirts of Bath where drivers leave their vehicles and catch a bus into the centre, are set to rise.

The details of exactly how "larger" would be defined haven't been fully spelt out in the source reporting, but councils that have gone down this road elsewhere typically use one of a handful of measures: vehicle length, width, kerb weight, or engine size. Some schemes bundle size into a broader emissions-based tariff, so a big diesel SUV pays more than a similarly sized electric vehicle, while others charge purely on physical dimensions regardless of what's under the bonnet.

Bath isn't inventing this idea from scratch. It follows a pattern already seen in France, where Paris introduced a much-publicised premium parking tariff for heavier vehicles, and in a handful of UK councils that have floated similar proposals as part of wider "SUV tax" conversations. Bath's own history with parking revenue is also relevant here. The council has previously faced scrutiny over how much of its car park income comes from penalty charge notices rather than legitimate parking fees, so any move to restructure tariffs will inevitably be read against that backdrop.

Why This Matters Beyond Bath

There are several threads worth pulling apart here, because "charge bigger cars more" sounds simple but touches on some genuinely contested policy questions.

Street space is finite, and cars have grown. The average new car sold in the UK today is significantly wider and heavier than the average car sold two decades ago. Larger vehicles take up more of a parking bay, sometimes overhanging into adjacent spaces, and contribute disproportionately to wear on road surfaces. Councils managing tight, historic street layouts, and Bath's centre is about as historic as UK streets get, have a genuine practical case for wanting to manage the footprint that vehicles occupy.

It's also a revenue and behaviour tool. Higher charges for bigger cars can be framed as fairness (why should a small car subsidise the extra road space and emissions of a larger one), but it's also, inevitably, a way for councils to raise more money at a time when local authority budgets remain under sustained pressure. Critics of these schemes tend to point out that they can hit families who need larger vehicles for practical reasons, such as those with several children, mobility equipment, or towing needs, harder than wealthier owners of smaller premium cars.

Park-and-ride increases land differently. Unlike a size-based tariff, a straightforward price rise at park-and-ride sites affects everyone who uses them, regardless of what they drive. These sites exist specifically to reduce congestion and pollution in Bath's centre by encouraging drivers to leave their cars outside the city and switch to public transport. Increasing the price risks undermining that goal if it pushes some drivers to simply drive into the centre and park there instead, defeating the point of the scheme.

The Legal Framework Behind These Charges

Councils don't have unlimited freedom to set parking charges however they like. On-street parking charges in England are generally set under powers in the Road Traffic Regulation Act 1984, and the way charges are structured, including differential tariffs, must be set out in a Traffic Regulation Order (TRO) or, for off-street car parks, an Off-Street Parking Places Order. Both of these instruments require a formal consultation process before they can be introduced or amended.

This means any move to bring in size-based charging in Bath cannot simply be announced and switched on. The council would need to consult publicly, publish the proposed changes, consider objections, and respond to feedback before implementation. If residents or motoring groups believe the consultation was inadequate or that the reasoning behind the tiered charges is legally unsound, there is scope for judicial review, the legal process by which a public body's decision can be challenged in the courts on the grounds that it was irrational, procedurally unfair, or beyond its powers.

There's also a broader principle at play under the Traffic Management Act 2004, which places a "network management duty" on local authorities to keep traffic moving efficiently. Councils introducing new charging structures often have to justify them, at least in part, by reference to this duty, alongside environmental and road safety objectives set out in their Local Transport Plans.

It's worth noting that none of this is unique to Bath. Any UK council wanting to introduce differentiated parking charges based on vehicle size, weight, or emissions has to work within this same statutory framework. Some councils already do something similar indirectly, for example through residents' parking permit schemes that charge more for higher-emission vehicles. What would be new about Bath's approach, if confirmed, is applying a size-based differential to general and park-and-ride parking rather than just to permits.

What Drivers Should Know and Do

If you regularly park in Bath, or you're planning a visit, there are some sensible steps to take while this proposal works its way through the council's decision-making process.

Watch for the consultation. Because any change of this kind legally requires a consultation period, keep an eye on Bath and North East Somerset Council's website and local news for the formal proposal documents. This is your opportunity to submit a response if you have concerns, whether you're a resident, a regular commuter, or a business owner worried about the impact on trade.

Check how "larger vehicle" will be defined. Once details emerge, look carefully at the threshold being used. Is it based on length, width, weight, or emissions banding? This matters enormously if you're close to the boundary, since a relatively modest family estate could end up classified the same way as a much larger 4x4 depending on how the lines are drawn.

Don't assume your existing permit or season ticket is unaffected. If you hold a residents' parking permit or a park-and-ride season pass, any restructuring is likely to affect renewal pricing rather than mid-term charges, but it's worth confirming directly with the council rather than assuming your current rate is protected long-term.

Keep your paperwork in order regardless. Whatever happens with tariffs, the fundamentals of avoiding a penalty charge notice don't change: make sure you're parked within marked bays, that any payment matches the correct vehicle category once tiered charging exists, and that you retain proof of payment. If a new charging structure leads to confusion, drivers may end up receiving PCNs simply because a machine or app misclassified their vehicle. If you ever find yourself hit with a ticket you believe was wrongly issued, particularly during a period when a council is transitioning between charging systems, it's worth reviewing the specifics of the notice carefully before deciding whether to challenge it.

Looking Ahead

Bath's proposal is still at a relatively early stage, and the practical details, including exact price differentials and the definition of a "larger" vehicle, will shape how significant this actually turns out to be for ordinary drivers. But the direction of travel is clear. As vehicles have grown larger and heavier across the market, and as councils continue to search for ways to manage congestion, emissions, and street space with limited budgets, size-based and weight-based parking charges look increasingly likely to spread beyond the handful of places currently experimenting with them.

For drivers, the sensible approach is the same one that applies to most parking policy changes: read the consultation documents when they appear, respond if you have a view, and don't wait until a new tariff has already been implemented to find out how it affects you. Bath won't be the last UK city to have this conversation, and whatever emerges here will likely be watched closely by other councils weighing up similar proposals of their own.