Green Building Certification Systems: A Comparative Analysis of LEED and BREEAM

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Mohamed Gabr

Abstract

The comparative analysis of LEED and BREEAM reveals significant insights into their respective contributions to sustainable building practices. Both certification systems have evolved to address the challenges posed by urban growth and environmental degradation, with LEED prioritizing energy efficiency and sustainability within an expansive framework, while BREEAM offers a more localized approach incorporating specific regional environmental considerations. The study highlights the importance of adaptability in certification criteria to meet current environmental demands and future-proof the construction industry. LEED's user-friendly approach appeals to new construction projects, while BREEAM stands out for its comprehensive assessment of existing buildings, addressing the notable impact of the construction sector on climate change and resource use. A framework developed for the Gulf Region identified 24 indicators across five principal headings: site/location, energy, water, occupant well-being, and resources and wastes, demonstrating the potential compatibility between these systems. However, LEED's lack of ongoing monitoring and recertification requirements raises concerns about its long-term effectiveness, while BREEAM's more rigorous approach may enhance accountability and transparency in sustainability practices. As global awareness of environmental issues intensifies, future trends in green building certification will likely prioritize comprehensive sustainability metrics encompassing energy efficiency, embodied carbon, and resource lifecycle assessments. Ultimately, continued collaboration among industry stakeholders is essential for enhancing these frameworks, ensuring they remain relevant and effective in mitigating the ecological impacts of building development while fostering sustainable economic growth.

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