This paper presents a novel framework that integrates building information modeling (BIM), life-cycle assessment (LCA), geographic information systems (GIS), and mathematical calculations to enhance eco-efficiency and sustainability in the construction sector. The framework aims to optimize design, material selection, operations, maintenance, and waste management processes by quantifying embodied emissions and using GIS for route optimization. A case study of a faculty apartment building at the National University of Sciences and Technology (NUST) in Islamabad, Pakistan, demonstrates the effectiveness of the proposed approach. The study found that the operational phase was the most critical in terms of environmental impact, contributing 2101 tonsCO₂. Mitigation strategies, including optimized design, use of sustainable materials, and waste management facilities, were implemented to reduce emissions. The results showed a 29.35% reduction in materialization stage emissions, a 16.04% reduction in operational stage emissions, and a 21.14% reduction in end-of-life phase emissions. The framework's integration of advanced tools and methods provides a comprehensive approach to enhancing sustainability and reducing environmental degradation in the construction industry.This paper presents a novel framework that integrates building information modeling (BIM), life-cycle assessment (LCA), geographic information systems (GIS), and mathematical calculations to enhance eco-efficiency and sustainability in the construction sector. The framework aims to optimize design, material selection, operations, maintenance, and waste management processes by quantifying embodied emissions and using GIS for route optimization. A case study of a faculty apartment building at the National University of Sciences and Technology (NUST) in Islamabad, Pakistan, demonstrates the effectiveness of the proposed approach. The study found that the operational phase was the most critical in terms of environmental impact, contributing 2101 tonsCO₂. Mitigation strategies, including optimized design, use of sustainable materials, and waste management facilities, were implemented to reduce emissions. The results showed a 29.35% reduction in materialization stage emissions, a 16.04% reduction in operational stage emissions, and a 21.14% reduction in end-of-life phase emissions. The framework's integration of advanced tools and methods provides a comprehensive approach to enhancing sustainability and reducing environmental degradation in the construction industry.