More than $1 billion (£800 million) was allocated for the interior of the main building alone, according to a former construction manager. The campus is something of an exception to the trend of radically open offices aimed at fostering collaboration, said Louise Mozingo, a professor and chair of the Department of Landscape Architecture and Environmental Planning at University of California, Berkeley. Its central office building - a massive ring of glass frequently likened to a spaceship - could be a challenge just to navigate, she noted. 'It's not about maximizing the productivity of the office space, it's about creating a symbolic center for this global company,' she said. 'They are creating an icon.'
An Apple spokeswoman declined to comment.