زهرا عزيزخاني

Threaten the psychological well-being of society, attention to the quality of living environments—particularly residential spaces—has gained greater importance. One of the key factors in designing healthy housing is natural light. Considering the vital role of natural daylight in improving residents’ mental health an‎d enhancing quality of life within residential spaces, this study aims to investigate the effect of natural light orientation on levels of satisfaction, comfort, an‎d positive an‎d negative emotions experienced by residents in living rooms an‎d bedrooms.The research employs a mixed-methods approach. In the first phase, a literature review was conducted to identify the components related to natural light, mental health, an‎d healthy housing. Subsequently, a residential unit located in Ekbatan Town, Tehran, was selec‎ted as the case study. Using simulation software an‎d a lux meter device, the illumination level (in lux) of this unit was measured. Then, the PANAS questionnaire an‎d a researcher-designed questionnaire were distributed among 100 residents. Ultimately, 60 responses were collected, an‎d after removing incomplete entries, 48 valid questionnaires were analyzed using SPSS software. The findings indicate that the average scores for satisfaction an‎d comfort with the amount of natural light in the living room an‎d bedroom are higher among residents of south-facing units compared to those in north-facing units. This difference is statistically significant in the living room (p = 0.002), while in the bedroom, the difference shows a tendency toward significance (p = 0.067). Furthermore, results reveal that the average scores of positive affect are higher among residents of south-facing units than those living in north-lit units. Finally, based on the study results, a set of design strategies was proposed to optimize the use of natural light in residential spaces. These strategies include various approaches for configuring the position an‎d size of windows, appropriate unit orientation, an‎d improved interior spatial design to enhance access to daylight. These recommendations can serve as a basis for designing healthier an‎d more effective residential environments that respond to the psychological needs of their occupants.

مسكن سالم , سلامت روان , نور طبيعي , جهت‌گيري , جبهه نورگيري

Healthy Housing , mental health , Natural light , orientation , Light exposure direction

Zahra Azizkhani

Dr. Sahragard Monfared- Dr. Yazdanfar