The architectural design of a psychotherapeutic milieu.

The physical environment of a treatment program affects patient outcome, but how and to what degree is not known. However, decisions about the design of the environment must be made, and they must be made in the face of cost and building-code constraints and widely varying patient characteristics and treatment models. The authors describe the design principles and philosophies they followed in the remodeling of an in-patient treatment and research service in a university psychiatric hospital and indicate where cost and code constraints resulted in a less than ideal solution. They point out that many apparent amenities, such as a ward kitchen, are significant milieu therapy resources, and they advocate the involvement of all levels of staff in the planning process.