Understanding environmental impacts is essential for creating effective designs that support mental well-being and sustainability

<p dir="ltr"><i>Although there has been a lot of research conducted on the relationship between sustainable design and mental wellness, there are still several gaps and limits. There is a gap in residential architecture because most studies on natural light, air quality, and green spaces have been conducted in commercial or healthcare spaces.</i></p><p dir="ltr"><i>This research paper explores the relationship between environmental factors, overall mental well-being, and sustainable residential building design. It focuses on how factors such as natural light, air quality, and green spaces can shape buildings to promote mental health and sustainability. Through addressing overall mental well-being, this study links design strategies to psychological needs while advancing sustainable practices. The study adopts a mixed methods approach, using surveys to collect qualitative and quantitative data on how environmental conditions shape our buildings to affect residents’ mental well-being. The sequential search optimisation method is employed to identify sustainable design solutions that enhance mental health outcomes. This method is appropriate as it allows for iterative improvements, ensuring both psychological and sustainability objectives are met. Guided by a pragmatic worldview, this research seeks practical solutions that balance environmental impacts with the mental well-being of residents. It focuses on residential buildings within specific geographical and cultural contexts, considering how global sustainability standards, such as BREEAM, can be applied locally.</i></p><p dir="ltr"><i>This interdisciplinary study connects architecture, psychology, and environmental science, offering a fresh perspective by integrating mental well-being into sustainable design. The findings will provide actionable insights for architects, policymakers, and residents, supporting informed decision-making in the design of sustainable, health-promoting residential environments. By establishing guidelines for building design that consider environmental impacts and psychological benefits, this research contributes to the evolving dialogue on sustainable architecture, with potential for practical applications across different contexts.</i></p>