Duncan Sinfield has shared another risky drone flyover of the Apple Campus 2 site, detailing a construction update as of this month. The video again contains flight around the site and its circular four-storey building, showing close ups of the underground auditorium, while some buildings appear to have their solar skylights installed.

Check out the video below, which is viewable in 4K resolution:

Apple Campus 2 is expected to be completed by 2016, if all goes according to plan.