That building was built during the 2000's,i saw it being built in various of my visits.
When I was there in 2006 or 2007 it was just the white columns, the wood wharf Marquee and the rest was being built. The building in that video is the apartments building that exists nowadays, it is Not the wood wharf studio where DS, Kate Bush etc used to rehearse.
The wood wharf where DS used to rehearse late 70's and early 80's is the one you can see in Kate Bush video, the screen capture i sent here.