. "Green belt legislation" . . . "Metropolitan Green Belt" . . . "Green Belt Act" . . "Green Belt around London" . "metropolitan Green Belt" . . "London Green Belt" . "metropolitan green belt" . "green belt scheme" . "rural" . "green-buffer" . "green belt" . "Green Belt" . . . "protected open space" . . . . . . "Metropolitan Green Belt" . "London" .