https://web.archive.org/web/20140201230404/http://corporate.aerlingus.com/investorrelations/regulatorynews/2011pressreleases/EIRNSFINAL_081111.pdf Archive]) the 9 acres former head office site includes the former head office building, the services annexe, the Iolar House, "Aer Lingus surrenders lease on head office site ." ''