Development of Stakeholder Engagement Strategies to Improve Sustainable Construction Implementation Based on Lean Construction Principles in Indonesia

Stakeholder management has an important role in the success of project because strategies, plans, methods, and processes for stakeholders greatly determine sustainable construction implementation. Lean is one principles implementing by maximizing value minimizing waste to increase productivity. This study aims analyze stakeholder engagement assessment matrix lean construction, drivers barriers develop strategies improve implementation construction. For this study, a questionnaire survey with 61 respondents was used. The data analysis method uses Certainty Index, RII, Fuzzy AHP, Fuzzy-TOPSIS. findings research show that there are gaps among such as owners, contractors, consultants, subcontractors, architects, government, local governments, NGOs. There no gap between suppliers investors. highest barrier lack knowledge skills using tools principles, while driver implement improved time efficiency process standardization. best strategy increasing having governments regulations standardize green materials.