We won't, I suspect this is a leveraged buyout. The purpose of which is usually to bring down a business by saddling it with debt. The motive is always obscure, but this being London I expect it's to do with property development.
You're probably right. I don't really know how this works, or any detail beyond the articles I linked and the Companies House information I pulled up about the business that owns the property. Hell, I'm sure if an actual accountant looked at the filings and my comments they'd quickly put me in my place over something significant.
I'd be interested in poking into the previous owners and the 2019 sale of the property, but I don't have any leads to start on that.