The Mercedes Benz UK media site states:
"Meanwhile, parent company Caledonian Truck & Van has acquired a site in Nairn, near Inverness, from where it will serve operators in the far north. Work is scheduled to begin soon on an extension and wholesale redevelopment of the former council depot, which is ideally located on the main Aberdeen to Inverness road."
This observer isn't aware of any former Council Depot at Balmakeith perhaps they mean former Council owned property? Anyway more details of what facilities will be on the site on this Mercedes-Benz webpage.