green belt

US /ˈɡriːn belt/
UK /ˈɡriːn belt/
"green belt" picture
1.

cinturón verde, zona verde

an area of open land around a city, on which building is restricted

:
The city council is committed to preserving the green belt.
El ayuntamiento está comprometido con la preservación del cinturón verde.
New housing developments are often restricted in the green belt areas.
Los nuevos desarrollos de viviendas a menudo están restringidos en las áreas de cinturón verde.