Forensic psychiatric care is a Dutch care system for those who have committed a crime partly due to a mental disorder. A forensic psychiatric patient is a convict who has committed a severe crime resulting in a prison sentence of at least 4 years. During the trail or during the imprisonment the convict is found to have (a) severe mental disorder(s). This convict will be placed in forensic psychiatric care where he will be place under (obliged) psychological treatment. These, now called, patients live in forensic psychiatric care from 2 to 10 years. Some will never leave forensic psychiatric care institutions since the treatment does not result in enough safety for society. The buildings for forensic psychiatric care fall within the requirements of as well prisons as psychiatric hospitals. There is a big contrast in these institutions since one should feel as punishment and the other as a treatment environment. Problem statement: How can the build environment contribute to the resocialization process of the forensic psychiatric patient? How can one design a treatment environment where the patient feels safe and at home with the security levels needed within an enclosed facility with the contrast of survivability and possibility for privacy? MethodThe study consists of three approaches; a theoretical study, four case studies and a design study. The theoretical study is a result of interviews, literature studies and documentaries about forensic psychiatric care. The limited literature is found in documents from the Dutch Government, architectural literature of normal psychiatric care and psychology literature. Also in the literature on healing environments and environmental psychology. The main goal of this study was to find out what forensic psychiatric care is, how it came to be and how people become forensic psychiatric patients. I have interviewed psychologists, facility managers of forensic care institutions, architects with experience in forensic psychiatric care institutions and had short talks with patients. When analyzing the case studies the focus did lay on several keywords and how these where implemented in the design. The keywords where found in the theoretical research; natural environment, order and disorder, survivability, autonomy, safety layers to protect society and protection from that same society and fellow forensic psychiatric patients, the quality of the spaces [bronnen]. The focus of the research lays in architectural elements, which contribute to those elements. The cases are also being compared by their quality of the spaces by looking at the admittance of daylight, used materials and acoustics. The methods are observations of the environment and of behavior (of different users groups) and in mapping the environment.The design study is testing the found results of the first two steps by translating this into a new forensic psychiatric institution. The design focuses on the entire process of resocialization and research the differences between different steps of this resocialization . It is an example on who to design for this specific target group. In the context of the research, the design is not only testing the results, but also a hypothesis for a right solution.The next step would be to test the building on its actual effect on length, stay and quality of living and usability for all user groups. To conclude whether the hypothesis is correct and were we need improvements. Results and DiscussionThe result of the theoretical study was an overview on what forensic psychiatric care is, what kind of people live in this type of institution and what requirements the forensic care institutions should care about. This includes an overview on the researches done on this type of build within environmental psychology and specially in the field of healing environments. The comparison of the several cases resulted in do’s and don’ts for forensic psychiatric institutions. The design research is still in progress. At this point there are design guidelines and is a general idea on how to translate the specific needs to a building. There is a discussion on whether the patients in forensic psychiatric are a being ‘punished’ enough within those institutions. One may say that the imprisonment is enough punishment and one should have an ideal treatment environment with extra attention to a good environment since they should feel at home in an enclosed environment. Another might say those patients live in better environments like many ‘normal’ people do and they do not deserve this. This will become a more in-depth discussion by starting from the variation of perceptions of the target groups of this institutions and the affordances the building should deliver taken the different users groups into account