The program was designed to demonstrate that the smooth operation of a coeducational residential program in this setting is possible. Staff aimed to maintain a high quality of programming and a caring atmosphere and to avoid unproductive sex-role stereotyping. The usual population consisted of eight boys and eight girls living in a one-floor building. A large, common living area was divided into a living room, dining room, kitchen, TV room, stereo area, pool-table area, and laundry room. At each corner of the building were four bedrooms and a bath. Adult supervision was provided 24 hours per day. The treatment techniques represented an eclectic approach emphasizing social learning theory, behavior modification theory, and positive peer group work theory. During the 1 1/2-year observation period, 28 girls and 26 boys were served for an average of 6 months each. Attitudes of both staff and juveniles were surveyed, and behavior was observed. The results showed that the avoidance of sex-role stereotyping influenced the juveniles' performance positively and that group problem solving was an effective way of establishing and maintaining productive norms. Human and social differences between the males and females were minimal when the environment promoted equal expectations for members of both sexes' behavior. The incidence of undesirable sexual conduct was minimal, and talking and sharing of interests made up a large part of the relationships as long as adult supervision was predictable. Both staff and residents found coed living to be manageable and productive. Data tables and a 6-item reference list are included.