Despite falling sales figures in Glasgow's "style mile", a number of major retail projects are under way or being considered in the city.
However, industry experts claim the current rate of expansion is unsustainable if overseas investors are not encouraged to move into Scotland.
Glasgow's business and political leaders must develop a global strategy to compete head on with other UK cities, they warn.
Lorraine Macphail, of Grant Thornton, said: "Major international retailers are coming to Glasgow and expressing real confidence. While this should be broadly welcomed, it doesn't make the city immune to future growth obstacles.
"Pockets of the city still require significant investment and innovative approaches. What is now needed is stronger collaboration, with political and business leaders to attract further big brands and investors to the city in the years ahead."
A £300 million expansion to Buchanan Galleries, a 45,000 sq ft expansion of Glasgow Fort and a £20m boost for Silverburn are currently under way.
A proposal for a £200m development at Braehead Shopping Centre is under consideration.