Hawarden Airport (located in Wales) is operated and owned still by BAe Systems, and Airbus UK is just a tenant on the land. Airbus call the factory "Broughton" as that village is closer than Hawarden to the airfield.
Raytheon also have operations there.
Given the scale of the hangar, I would assume it is an Airbus investment.
Hawarden Airport - Wikipedia, the free encyclopedia