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BREEAM® (Building Research Establishment Environmental Assessment Methodology) is a global method for assessment and certification of the technical sustainability of buildings.

It encourages more sustainable construction, which translates into higher profitability for those who build, operate and/or maintain the building; a reduction in its environmental impact; and greater comfort and health for those who live in, work in or use the building.

It assesses impact in 10 categories (Management, Health & Wellbeing, Energy, Transport, Water, Materials, Waste, Land Use and Ecology, Pollution and Innovation) and gives a final score after applying an environmental weighting factor that takes account of the relative importance of each impact area. It comprises the various stages of design, structure and use of buildings and provides assessment and certification schema based on building type and use.

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