 The HOB Site, the former head office site includes the former head office building, the services annexe, the Iolar House, the Mock-Up Building, the ALSAA swimming pool, and various smaller structures and buildings.The Head Office Building housed the corporate head office of Aer Lingus and its subsidiaries, and many administrative functions, employees, and car parking spaces, were located in this building.The Iolar House and Mock-Up Building housed training facilities for Aer Lingus crew and office space.