What is "breeam"

BREEAM (Building Research Establishment Environmental Assessment Method), first published by the Building Research Establishment (BRE) in 1990, is the world’s longest established method of assessing, rating, and certifying the sustainability of buildings. More than 250,000 buildings have been BREEAM certified and over a million are registered for certification – many in the UK and others in more than 50 countries around the world.