A preliminary review of case studies window view quality in building

During the last half-century, the rise of high-density urban spaces has matched the population growth of the world's community, resulting in all the cities having less natural greenery and structures with less daylight and viewpoints. Access to sunlight and view of the outside is becoming restricted in constructions due to the public's exponential rise and the corresponding increase in quantity in metropolitan areas. It has been observed that a window view quality that offers visual contact with the outside has various benefits for residents. These advantages involve environmental experience, wellness, decreasing discomfort, and stress recovery. Besides, although, at the moment, there are no design standards for window view quality, the literature review suggested that the kind of building concept impacts objective viewing qualities. For instance, the window view requirements for hospital patient rooms may differ from office spaces. Content, access, and clarity seem to be the three significant aspects of judging the window view quality. In addition, theories and studies suggest that viewing choices can be divided into three categories: the demand for the art form, the need for knowledge about the outside surroundings, and the requirements for relaxation and wellness. The results of this preliminary review on case studies about window view quality in buildings highlight that the complicated structural processes behind window views, as well as the individuals' reactions and perceptions while looking through a window with different visual qualities, have to be thoroughly investigated. Therefore, several opportunities for further investigations are opening up in this field concerning the following aspects: (i) geometrical (number of window views, size of window views, the distance of window views, etc.), (ii) temporal (timing of view, duration of view, etc.) and (iii) psychological (feelings, mood, occupants' satisfaction, emotions, etc.).