Asos is recruiting an additional 1,500 people over the next three years at its London headquarters.
The etailer, which currently employs 2,500 at its office in Mornington Crescent, north London is looking for staff across its technology, marketing, content and retail departments.
The firm has taken over an additional 40,000 sq ft to facilitate the expansion, taking its total space to 250,000 sq ft.
The expansion and renovation will cost £40m.
“Our people are what make Asos special. We are creating a workspace that fosters creativity, where they can enjoy what they do,” said Nick Beighton, Asos chief executive.
“Greater London House is such an important part of the company’s history, as well as Camden’s, so I’m thrilled that we get to stay in our home, while building a workplace for the future.”
The new space has been designed by architects Spacelab and will focus on flexible working allowing employees to work anywhere, on any device.
The refurbishment will also include new staircases and light wells, a gym, a training academy, a library, new cafes and an auditorium for companywide gatherings.
Nathan Lonsdale, partner at Spacelab said: “Asos is a global, tech driven phenomenon. It gets that a smart, young workforce needs a workspace that celebrates their needs and their talents. Flexibility and mobility are incredibly important when maximising collaboration in a dynamic working environment. The space will reflect the personality of the company and its bold ambitions for the future.”
Asos invested £81m in its Barnsley warehouse, which has 4,000 employees, over the past five years. A further £23m investment is earmarked over the next 12 months.