Some 350 flats at Hyundai Engineering & Construction's new apartment complex, Hillstate Gayang The Wise, located in Gayang-dong, Daejeon, will go on sale in December. The 358 units at the three-building apartment complex range from 84 square meters to 155 square meters. At 49 stories high, Hillstate Gayang The Wise will become the tallest residential building in East Daejeon. Residents are expected to move i.