Well-designed of an urban park is one of the best ways to achieve the city sustainable development and contributes to the quality of life in many ways. Central to this argument is the claim that the variables need to be considered and thus, this research was conducted to assess the quality of urban park by empirically evaluating through behavioral competencies and psychological well-being from the model of Lawton’s Quality of Life. A quantitative research method was employed for the research with 134 respondents in Taman Lembah Bukit SUK, Shah Alam. Results confirm that the urban park provides the potential for psychological well-being and behavioral competencies equally among male and female in improving their quality of life.Keywords: quality of life; urban park; behavioral competencies; psychological well-being.eISSN 2398-4279 © 2018. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ajqol.v3i13.164