What is the role of green belts in urban growth and land-use planning?

• A. Constrain expansion, protect farmland, and encourage higher-density urban cores.
• B. Green belts have little effect on housing prices.
• C. Green belts increase urban sprawl.
• D. Green belts are primarily decorative and do not affect land use.

Answer: (A)

Green belts function as a boundary that contains where growth can occur around a city. By restricting new development beyond this boundary, they protect surrounding farmland, open space, and natural or rural landscapes from being swallowed by urban expansion. This containment also nudges growth inward, encouraging higher-density development, redevelopment of underused inner-city areas, and more efficient use of existing infrastructure and services. In this way, green belts help steer growth toward a denser urban core while preserving the countryside on the urban fringe and supporting more sustainable land-use patterns.

They are not decorative and they do influence land use; the effect on housing prices is nuanced, but the typical outcome is that limiting outward expansion and promoting inner-urban development can raise pressures and values inside the belt while dampening sprawl. The option that describes green belts as simply decorative and having little impact, or as increasing urban sprawl, doesn’t fit the mechanism or goals of this planning tool.