Hundreds of people queued up outside the Capitals new shopping centre, with some people arriving as early as 3am on Thursday, to be first into the new build.
Doors opened to the public at 9am and the centre has been a bustling hive of activity since.
Here are 13 pictures giving you a glimpse inside the impressive St James Quarter on its opening day.
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9. More to come
The development's hospitality and residential elements are set to be complete in three further phases through to 2022. Photo: John Devlin
10. Security and safety
It is understood that access to the shop will be controlled by stewards throughout the day - a measure designed to ensure its Covid capacity is not breached. Photo: John Devlin
11. Retail on offer
H & M, Mango, Next, Victoria's Secret, Rituals, Tommy Hilfiger, Peloton, Salerno , Nordic Outdoor and many more welcomed customers into their new stores at the centre. Photo: John Devlin
12. Pop-up welcome
The Lillet Spritz Garden is outside St James for the summer for shoppers and others to enjoy a cocktail with a beautiful floral arch - perfect for Instagram posts. Photo: John Devlin