Fourmarketing will open a multibrand store at a new fashion hub called Hackney Walk which is currently under construction in east London.
The brand agency will join MatchesFashion, Nike and Joseph, which have also confirmed plans to open at the new hub set in the railway arches on Morning Lane.
Existing outlet stores at the hub include Anya Hindmarch, Burberry, Bally, Aquascutum and Pringle of Scotland.
Hackney Walk will also feature pop-up concepts from fashion, food and creative entrepreneurs and provide free commercial space for a young east London designer to become a designer in residence.
The first to take residence is London Fashion Week designer Ashley Williams.