As part of the planning process of several government run psychiatric hospitals, staff in two hospitals were interviewed. Users' views and needs from the physical environment were to be translated into planning terms and integrated into the programming and physical planning of new psychiatric hospital departments to create treatment environments in congruence with therapeutic methods. Findings indicated that then_existing perceptions of planners regarding psychiatric patients and psychiatric treatment methods, could no longer serve as the basis for programming and physical planning. Staff emphasized patients' needs for privacy and territory within the hospital, regardless of their mental health condition - a previously unheard - of view. Privacy, territory, and independence, and their balance against staff supervision and control, were discussed in the context of the psychiatric hospital environment. Showers and toilets are of particular significance for both patients and staff, and their preferred location and number were discussed at length in light of privacy, supervision and independence. The overall layout of departments was also a case in point. An attempt was made to balance between privacy and supervision in regards to the shape of the overall layout of hospital department: While one group of respondents stressed the need for supervision thus preferred a centralized shape (with nursing station in the middle of patient rooms), others objected to such a shape because of the compromised degree of privacy it allowed patients. Staff also requested a new type of psychiatric department. to contain all treatment possibilities, and thus eliminate moving patients between acute/open/rehabilitative departments as fluctuations occur in their condition. Patients would stay, under the care of' the same staff when changes in condition take place rather than have to adjust to a new environment and new staff each time their condition improves or worsens. Using professional perspectives and treatment approaches of psychiatric staff as the basis for programming and physical planning is a method of user participation that is not commonly utilized in health care facilities design. The method, its implications, and specific findings of this project ill he presented in detail.