Cost Management in Infrastructure Development: Enhancing Budget Efficiency at Sekolah Alam Samarinda, Indonesia
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This study examines cost management practices in the construction of Sekolah Alam Samarinda, an alternative education model integrating sustainability and nature-based learning. The research aims to analyze the composition of construction costs, evaluate cost-efficiency strategies, and assess the budget control mechanisms applied during the project. Using a qualitative case study approach, data were collected through budget document analysis, field observations, and in-depth interviews with project implementers. The findings indicate that the largest share of the budget was allocated to structural works and environmental adaptation, reflecting the need for robust, context-sensitive infrastructure. Several cost-saving strategies were identified, including the use of local materials, modular design, community involvement, and the integration of natural ventilation and daylighting to reduce utility requirements. These approaches resulted in an estimated 15% reduction in total project costs compared to initial projections. Furthermore, applying value engineering principles preserves functionality and quality while optimizing resource utilization. The study concludes that effective cost management in alternative school construction requires adaptive planning, active local engagement, and environmentally responsive design. Practical recommendations include early-stage budget simulation, improved documentation, and enhanced stakeholder collaboration to strengthen cost control in similar future projects.
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