All day drinking and music will be allowed at a high street bar during Royal Ascot, a council has ruled.

Fears were raised that the week-long event at Vall de Cavall tapas bar on Hermitage Parade in Ascot would cause too much noise for residents of nearby flats. But restaurant owners said the event is ‘critical’ to keeping their business going.

David Dadds, a lawyer for the restaurant, said: “We as a business have to have this event – this is critical to our survival and supporting our staff, our business, paying our bills. This is a really important week for revenue.

“It’s absolutely critical for hospitality to have that week to boost revenues income and support the business throughout the rest of the year. That’s vital. We know that around £80 million is spent in the hospitality trade in that week.”

Vall de Cavall owner Sandra Da Costa plans to sell alcohol and host entertainment at the bar from 10am-10pm between June 18 and June 22.

Details submitted to the Royal Borough of Windsor and Maidenhead say entertainment will include a DJ between 4pm and 10pm. Mr Dadds said he expected ‘no more than 200’ people to attend.

Ms Da Costa submitted a temporary event notice to the council’s licensing department. This allows venues to host activities that they would normally need a license for without having to get authorisation from the council.

But police and council environmental health officers can intervene to impose restrictions or stop events going ahead.

The Royal Borough’s environmental protection team said they’d had noise complaints from residents of High Street in Ascot in previous years. Councillors on the Royal Borough’s licensing sub committee held a hearing to decide whether to allow the event on Thursday May 23.

In a written statement, environmental health officers said: “We historically have numerous complaints, particularly during Ascot week, about loud music.

“Last year, environmental protection officers visited the High Street and were of the opinion that statutory nuisance was likely to be occurring and affecting the enjoyment of local residents’ properties.”

But an environmental protection officer was not allowed to give further details at the hearing.

He was told this was because this would have been new evidence that Ms Da Costa should have had the chance to see beforehand – and that he should have submitted it before the hearing.

Mr Dadds said the environmental protection officers had provided no evidence of complaints from neighbours about the restaurant’s event in previous years. And he said neighbours had told restaurant owners they were ‘content’ with the Val de Cavall’s plans.

The councillors agreed unanimously to allow the event to go ahead, in a decision published this week.