The plan by Tesco to open a store on the site of the old Three Elms pub in Windsor is to be scrutinised by anxious councillors.
It has been 'called in' for public discussion by planning members - probably this September.
Some fear that the plan to open a Tesco Express on the site of the old pub in Clarence Road will wreck the business of the popular Londis store opposite, which has been run by Dipak and Dina Gandecha for 21 years.
Others fear traffic chaos if the plan goes ahead.
Lifelong Windsor resident John Clark, 65, has lived in Carter Close for 37 years. He is calling on people to register objections on the Royal Borough's website.
He said: "Anyone who regularly drives across the Clarence Road/Dedworth Road junction will know how busy this junction already is without another store adjacent to the traffic lights.
"If one car needed to get out of the old pub car park it caused mayhem. Imagine what it would be like with a busy Tesco there.
"I can see a large Tesco articulated lorry delivering to the proposed shop, with all the problems of where that will park."
He fears for the safety of children travelling to the four schools in Hatch Lane and Parsonage Lane - or further afield to Windsor Boys School, Trevelyan and the Dedworth schools.
Tesco does not require planning consent to turn the old pub into a shop. But permission is required from councillors to make some necessary adjustments, including fascia boards, an ATM machine, CCTV cameras and bollards.
The store will also need licensing permission to sell alcohol from 6am to 11pm seven days a week - another aspect of the plan that is worrying some neighbours.
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