BREEAM is the world's foremost environmental assessment method and rating system for buildings. It sets the standard for best practice in sustainable building design, construction and operation.  The goal is to encourage designers of buildings and interiors to think about low carbon and low impact design, minimising the energy demands.  A BREEAM assessment evaluates a building’s specification, design, construction and use. 
BREEAM is specifies the sustainability performance of buildings in a way that is quick, comprehensive and highly visible in the marketplace.