Sustainability, linked to the triple bottom line is a very advantageous approach in managing construction projects. However, organizations continue to apply traditional management best practices that lack a clear integration of sustainability factors. Hence, this research aims to identify the key factors of sustainability in project management within the United Arab Emirates (UAE) and to assess their potential impact on project success using Structural Equation Model (SEM). The structural model investigates 37 technical attributes across 12 confirmatory factors. It was found that there is a significant positive relationship between Project Sustainability Management (PSM) and Project Success (PS). Finally, the research provides a theoretical framework to achieve more sustainable and successful projects in the future.