After sitting abandoned for six months, Fremantle's iconic Myer building will soon reopen with an eclectic mix of retail, artists' work spaces and even a rooftop bar with a helipad.

The MYRE project is part of the $220 million redevelopment of the central Kings Square space by the City of Fremantle and the building's owner, Sirona Capital.

The building's 20,000ft of floor space is split between five levels of private artist work spaces, a retail floor that is fed products by a production floor of designers and producers, which is open to public view, offices and the top level piece de resistance - a rooftop bar, garden, outdoor gym and yoga classes, food and open-air cinema.

Spacemarket director Beth George said she hoped the unique development, in which visitors will be able to witness purchasable products being designed and created, would begin to turn retail around in Fremantle.

"Just as we're obsessed with things like cooking shows now because we get to see the sweat and the argument and the tears and all of that emotional process, we believe there is a public appetite for a different kind of retail," she said.