SEOUL, South Korea--At the Samsung Tower Palace, even the refrigerators are logged onto the Net. The luxury apartment complex here is a showcase for Samsung Electronics' burgeoning digital home ...

Ranked No. 1 was Traum Haus in Seocho-dong, followed by I-Park in Samsung-dong and Sangji Ritz Ville in Cheongdam-dong. Tower Palace tumbled after its value shed more than 20 percent in the past year.