M&S in St Brelade is set to become a Foodhall.
Sandpiper CI plans to convert the fashion, home and beauty store at Red Houses into two floors of food and groceries.
It says the proposed 'fresh market-style foodhall' will include an in-store bakery, flowers and wine shop.
There will be a 'collect by car' service.
If planning consent is given, work could start in the autumn.
The store will close temporarily for re-fit, and re-open later this year.
St Brelade would be the fifth standalone M&S foodhall in Jersey. There used to be a small food department in the basement of the existing shop at Les Quennevais.
An M&S spokesperson, added: “It’s brilliant to have the opportunity to bring M&S Food to even more customers in Jersey and the new store design would make shopping at St Brelade all that more enjoyable and convenient.”


Draft law scraps time limits on abortions in Jersey
Divide over approach to gender guidance in schools
Three charities awarded £500 grants in community campaign
Ministers back principle of social media 'restrictions' for under 16s
Passengers rerouted through Jersey Airport departures
A total ban on disposable vapes in Guernsey and Jersey is poised to take full effect
Islanders with COVID-19 symptoms reminded to avoid the hospital
2025 was the fourth warmest year on record