This report describes a study conducted by the Boulder Valley (Colorado) Public Schools to determine the impact and value of the district's open-space elementary schools as compared to its traditional school buildings with self-contained classrooms. Specifically, the study sought to determine the effects of varying school designs on (1) the attitudes of elementary students, teachers, and parents toward school, (2) classroom atmosphere, structure, and activity, and (3) the academic achievement of students. The study of academic achievement was completed during the 1973-74 school year; all other data for the study were collected between January and June 1975. Data and findings from the surveys are presented and described in separate sections that focus in turn on teachers' attitudes, students' attitudes, classroom atmosphere and activity, parents' attitudes, and academic achievement. A final section presents tables that summarize data for the entire study and discusses implications of the study's findings. The appendix lists the district's 25 elementary schools by building type and contains samples of the various data collection questionnaires. (JG)