BREEAM (Building Research Establishment Environmental Assessment Method) is a sustainability assessment method for buildings developed by the Building Research Establishment (BRE) in the United Kingdom. BREEAM considers various environmental factors, including energy efficiency, water conservation, waste management, indoor air quality, materials selection, and sustainable site development. BREEAM certification can be a competitive advantage for businesses and organizations. Tenants and customers are increasingly looking for BREEAM-certified buildings, and BREEAM certification can help to attract and retain them. It is also the most widely used sustainability assessment method for buildings in the United Kingdom. There are over 1 million BREEAM-certified buildings in the UK.