BREEAM (Building Research Establishment’s Environmental Assessment Method) is the world’s leading and most widely used environmental assessment method for buildings.
BREEAM (Dull Asesu Amgylcheddol y Sefydliad Ymchwil Adeiladu) yw prif ddull asesu amgylcheddol y byd ar gyfer adeiladau, a'r un a ddefnyddir fwyaf.