Sports giant Nike has launched a 3.2m sq ft (297,000sq m) expansion of its world headquarters in Oregon to add sporting facilities, mixed-use space and new offices.

The architecture of the expansion is inspired by human movement, speed, plus the strength and energy of competition. A large beacon serves as the centrepiece of the new campus, featuring a sculpture of Nike’s namesake, the winged Greek goddess of victory.

Open green spaces, paths, sports courts and fields will be added to link to existing parts of the headquarters – which opened in 1990 – to “promote movement and encourage fluid teamwork through inventive, flexible spaces.”

Many of the office buildings will be extended to blend into the landscape and incorporate new sustainable elements – including natural daylighting, a grey water treatment centre and a radiant convection system for heating or cooling – as Nike pursues LEED Platinum Certification.

US firms ZGF Architects, SRG Partnership and Skylab Architecture will guide the design, while Portland practice Place Studio will develop the landscape architecture.

“Every day at Nike we dream up new ways to inspire athletes to expand their potential,” said Mark Parker, president and CEO of NIKE. “To do that, we relentlessly evolve how we inspire our own teams and design environments that foster chemistry and collaboration.

“Breakthrough products are designed and developed for the world’s best athletes. This stems from a constant drive to imagine, invent and deliver the future of sport – a mission facilitated by workspaces that support rapid iteration and creation through collaboration.”

The work is estimated to be completed by 2018. The project cost has yet to be revealed.