Norwich could lose almost 1,000 parking spaces to accommodate growing car sizes, an insurance company has claimed. 

Adrian Flux estimates the Fine City would lose around 970 spaces if new guidance from the Institution of Structural Engineers recommending a significant expansion of space dimensions is acted upon. 

The updated standards propose an increase from 2.4m by 4.8m to 2.6m by 5m - an increase that falls in line with car growth over the last 50 years. 

It comes as a new study from campaign group Transport & Environment found roughly half of all new cars are too wide for a typical parking slot.

Norwich Evening News: St Andrews car park in Duke Street, NorwichSt Andrews car park in Duke Street, Norwich (Image: Google Maps)

The current standard parking dimensions were recommended back in the 1970s when the average size of a car was considerably smaller than now in 2024.

Gerry Bucke, general manager at King's Lynn-based Adrian Flux, said: “The growing popularity of larger SUVs and 4x4s presents a unique dilemma for urban planners.

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"The size increase, with consideration for pillar placement in multi-storey and underground car parks, means that major cities across the UK including Norwich are set to lose thousands of parking spaces.

"The alternative poses trouble for custom and customers as already growing cars continue their increase in size and popularity, making navigating and actually using car parks harder and harder."

Local businesses have already raised concerns about parking in Norwich after fees at city council car parks rose by 7.5pc, rounded to the nearest 10p, in January.

Merged with an increase in 2022, some costs have risen by a combined 80pc in two years.

Norwich Evening News: Rose Lane car park in Norwich city centre, which opened in May 2016Rose Lane car park in Norwich city centre, which opened in May 2016 (Image: Huber Car Park Systems)

Speaking on this rise, Mark Hedge, owner of Cookes Band Instruments in St Benedicts Street, said: “I think people will pay it but there’s so many empty shops here now that it’s getting harder and harder to get people off the sofa and into Norwich. 

“It’s just another thing that won’t help any business large, small or independent."

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Norwich City Council manages three multi-storeys and several pay and displays, which have just over 3,000 spaces, but there are hundreds more spaces at privately managed car parks including Chantry Place and Castle Quarter.

A city council spokesman said it was "reviewing" the situation and was taking into consideration "a variety of factors including, legislation, government guidelines, best practice and feedback from residents".

Robert Bradley, manager at Castle Quarter, said the shopping mall - which has 700 spaces - is "always looking for proactive ways to improve its offering".

He added: "Whilst we have no immediate plans to change the size of our parking spaces that is not to say we won’t do so in the future.

Norwich Evening News: Robert Bradley, manager at Castle QuarterRobert Bradley, manager at Castle Quarter (Image: Newsquest)

"As always, we listen to feedback from our customers and continue to adapt to meet their needs.”

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Chantry Place shopping centre, however, said it had few concerns about the changes to regulations - with its spaces already being among the largest in the city.

General manager Paul McCarthy said: “With 1,000 spaces, security staff on site 24/7 and being one of the best priced long stay car parks in the city, we are always looking at how best we can make a visit to the city enjoyable and convenient for our visitors.

"In addition to our 58 larger parent and child bays and 49 disabled bays, our additional 983 standard car park bays are amongst the largest in Norwich at 2.4m by 5.2m.

"Whilst we currently have no plans to change them, we will continue to review this as our visitors needs change.”

Norwich Evening News: Paul McCarthy, general manager at Chantry PlacePaul McCarthy, general manager at Chantry Place (Image: Chantry Place)