Heavenly will open its doors at Unit 3B1 on London Road at 10am on Saturday, September 5, with the Crawley venue also becoming the first location to open under the company's new branding.
The chain, which previously operated as Heavenly Desserts, was founded in 2008 and has more than 60 restaurants across the UK.
The company said the rebrand reflects its expansion beyond desserts into coffee and brunch.
The Crawley restaurant is being run by franchisee Shivam Patel, who said around £450,000 had been invested in creating the new store.
He said the venue would also create around 15 local jobs.
“I'm really excited to be bringing Heavenly to Crawley,” Mr Patel said.
“This has been a huge project for me personally, and we've invested around £450,000 into creating the new store.
“What makes it even more special is that Crawley will be the first Heavenly store to open following the brand's recent rebranding, so we're really proud to be bringing the new look and experience to the area.”
The restaurant will serve a range of desserts including ‘bestselling’ croffles (a cross between a croissant and a waffle), crepes, milk cakes and the ‘inventive dessert tapas’.
Its brunch menu includes dishes such as masala toast, egg and beans, chorizo hash brioche and croffle Benedict.
The drinks menu includes tea, coffee and hot chocolate, alongside speciality drinks including a hot saffron latte.
To mark the opening, the first 100 customers through the doors from 10am on Saturday will receive a free coffee.
The company is also offering 50 per cent off selected items from its dessert and brunch menus on Saturday and Sunday, subject to terms and conditions.
Heavenly chief marketing officer Zain Hussein said the company had decided to launch its new branding in Crawley because of the growth of its brunch and coffee offering.
He said: “While we are proud of what we have achieved as Heavenly Desserts, and we have many, many loyal customers who love our sweet treats, we also know that many people come to us for so much more.
“Our customers across the country have been loving our expansion into brunches and coffee as well as desserts, so we thought it was perfect to unveil our new branding for Crawley.”
The new eatery will be located within the large building, formerly occupied by the Nuffield Health Fitness and Wellbeing Centre.
It is one of multiple businesses planned for the site, alongside PureGym, PizzaExpress and children's activity and party venue Oxygen Active Play.