Optibase Ltd. (Optibase)is engaged in the investment in real-estate properties. As of December 31, 2010, it had three real-estate assets in Rumlang Switzerland, in Miami, Florida and in Geneva, Switzerland. The real estate market includes the purchasing and operating of real estate properties intended for leasing and resale primarily for the purpose of commercial, industrial, office space, parking garage, warehouse use, as well as for residential purposes. On December 30, 2010, its wholly owned subsidiary, Optibase Real Estate Miami LLC, had acquired 21 luxury condominium units in the Marquis Residences in Miami, Florida. On July 1, 2010, Optibase Ltd. sold its video solutions business to S.A. Vitec (Vitec Multimedia) (S.A. Vitec and Optibase Technologies Ltd., and and Stradis Inc., collectively Vitec). On March 3, 2011, the Company, through its jointly owned subsidiary, acquired, an office building complex in Geneva, Switzerland known as Centre des Technologies Nouvelles (CTN).