Energy management for housing, which is responsible for 70% of the energy consumption by buildings, is increasing in importance. This study identified the characteristics of energy consumption in high-rise apartment buildings through a series of case studies and resident surveys. The results were as follows: (1) high-rise apartment buildings can be classified according to whether they are mixed-use or general residential buildings and according to the building shape. (2) In the evaluation of the characteristics of electrical energy consumption according to building use, residents in the mixed-use apartments showed higher behavior of active heating management and more actively adjusted their indoor stay, but they consumed more electricity, particularly in summer, than those living in general residential apartments. (3) For the electric energy consumption characteristics according to the building shape, plate-type buildings consumed less energy than tower-type buildings. And the latter consumed 1.48 times more energy than the former in the electricity for common areas. (4) When evaluating the characteristics of liquefied natural gas consumption according to the building shape, it can be seen that plate-type buildings consumed 10% more gas than tower-type buildings. (5) CO2 emissions in mixed-use buildings were found to be higher than those in general residential buildings. (c) 2011 Elsevier B.V. All rights reserved.