The purpose of this study is to investigate residents` subjective opinion of the noise on the low-rise multifamily house in U.S.A.. The results of this study can be applied for the prevention of noise when planning cities, roads, and multifamily houses in Korea. The subjects of this study are three kinds of multifamily houses and their 109 residents in Athens, U.S.A. The results of this study are as follows. The residents felt the noise from lawn mowers and the sound from filter fans of air conditioners were higher than all the other external noise. The residents daily activities were disturbed a little by the external noise. Of the internal noise, the air borne sound was recognized a little by residents. They only felt a moderate sound level from the building services of the solid borne sound. They suffered worse from noise in the summer and they felt worse from 16∼20 o`clock due to noise. The residents who were living in town houses felt better than those in the other multifamily houses. (Korean J Human Ecology 1(2):61∼74. 1998)