green buildingnoun
ukusENVIRONMENT, SOCIAL RESPONSIBILITY[ U ] the activity of making buildings in a way that protects the natural environment, for example by using green energy (= electricity which is produced with wind, water, or the sun):
We feel that green building should become general practice in the industry.
[ C ] a building that is designed in a way that protects the natural environment:
We want our new office to be a green building.