GRIVALIA PROPERTIES Α.Ε.Ε.Α.Π. Acquisition of two assets in 340, Syngrou Avenue, Kallithea & 49, Kifissias Avenue, Maroussi, Attica See the Press Release.Acquisition of two assets in 340, Syngrou Avenue, Kallithea & 49, Kifissias Avenue, Maroussi, Attica