According to the rapid changes in our society and lifestyles, the methods of spending leisure time are being diversified and the facilities for leisure activities are growing as multi-purposed complexes. Purpose of this study was to figure out the design changes of lodging facility interiors in resort complexes which had been influenced by socio-economic conditions after the year 2000, and to provide fundamental references for planning pleasant and differentiated resort accommodations. To accomplish this purpose, the recent tendency of making complex resort facilities was examined and the changes in the properties of lodging facility design since the year 2000 was analyzed. The result shows that the surface areas of guestroom units have been enlarged, and the composition of floor plans has been diversified into various types. Also the number of bathrooms and built-in furniture units has been increased. For the design properties, concepts and themes for guestroom design has been diversified by applying unique color schemes and design elements. The characteristics of lodging facility design in domestic resort complex have been developed to reflect social trends and customer needs. Nevertheless, to deal with changing culture of leisure life, continuous study on resort facilities and various types of lodging facility is required.