GGRA03H3 (Week 10): Urban Growth Boundaries and Green Space
Urban Growth Boundaries (UGB):
Defined area around an existing city for the purpose of regulating development
and curtailing “sprawled” development
Encouragement of higher density development within boundary and lower density
development outside of boundary.
Boundary creation is geographical and political process
Greenbelt: designation and protection of open space around cities to contain and
separate urban growth.
Garden City vision
Adopted by British Town and Country Planning thinking in 1930’s: Patrick
Greater London Greenbelt (1945) – influenced greenbelt planning elsewhere.
Objectives of Green Belt (United Kingdom):
Regulate unrestricted sprawl of large built-up areas
Prevent neighbouring towns from merging into one another
Protect countryside from encroachment
Preserve the setting and special character of historic towns
Assist in urban regeneration by encouraging the recycling of derelict and
other urban land
An example can be seen in Portland, Oregon: