An Integrated BIM-Based Framework for Sustainable Construction Planning, Cost Management, and Environmental Impact Assessment.

The construction sector is one of the major contributors to global greenhouse gas emissions and nonrenewable energy consumption. Sustainable construction practices require digital workflows that integrate environmental performance evaluation into building design and project execution. Building Information Modeling (BIM) provides a collaborative platform for integrating geometry, scheduling, cost, and sustainability parameters throughout the building life cycle. This study proposes an integrated BIM-based framework combining 3D modeling, 4D scheduling, 5D cost estimation, and 6D sustainability assessment using Life Cycle Assessment (LCA). A residential building case study was modeled in Autodesk Revit and coordinated using Navisworks for clash detection. Construction planning and cost mapping were performed through MS Project, while embodied environmental impacts were quantified using mathematical manual analysis and OneClickLCA. Results show that sustainable material substitution reduced Global Warming Potential (GWP) by 32.2% and nonrenewable energy depletion by 24.4%, while remaining economically feasible. The findings demonstrate BIM–LCA integration as an effective decision-support approach for low-carbon construction.