The space planning and interior lay out of youth centers should be determined carefully for youth education and leisure after school which is considered cultural exchange, hobby, physical training in area of the daily life and to prevent unvaried or unwanted situation in the interior space. Recently, the youth center in youth facilities is architectural planning and managing without consideration of conditions of location environment, regional characteristics and prior condition of space. This paper try to provide basic architectural concept of the space planning for youth centers in urban. On the bases of survey and analysis, the basic data for youth centers have been proposed in consideration of the development of youth activity and community environment in korea. The results of the study were firstly, general basic data for the general architectural planning, secondly, guidelines for the space planning of youth centers in urban, thirdly, new alternative youth centers with 3 types.