During the IMF period the unsold of apartment housing was significantly increased due to financial problems. Apartment constructors had to severely struggle with fund problems and even some of them were bankrupted. Due to this fact, they had to find new marketing strategies to sell the apartment complexes even with low margins. One of the solutions was that housing companies could present a distinctive and outstanding outdoor space in apartment complexes. The purpose of this study was to investigate such differentiated marketing strategies by reviewing the apartment housing advertisements during the IMF period. The major findings through this study were as follows: 1. During the IMF period housing companies presented a distinctive and outstanding outdoor space in apartment complexes. In 1999, which was the peak of the IMF impact, there were frequent advertisements for apartment housing in daily newspapers. 2. Daily newspapers had been mostly used for advertising the apartments. A thorough review of them is very valuable in investigating differentiated marketing strategies of the outdoor space in apartment complexes. 3. The main theme of differentiation of outdoor space can be summarized as : Emphasis of the importance of healthy life, application of environment-friendly facilities, and use of traditional korean style elements in apartment complexes.