Containing urban sprawl—Evaluating effectiveness of urban growth boundaries set by the Swiss Land Use Plan

Urban containment strategies are one of the best-known planning instruments for managing urban sprawl. The two main types of such strategies are greenbelts and urban growth boundaries. The boundaries set by the Land Use Plan in Switzerland have been applied since 1970. We evaluate the effect and success of this strategy by analysing expansion of developed land, change in number of buildings, and building density within and outside building zones in four Swiss municipalities 1970–2000. Our results show that the boundary restricted most development to building zones and promoted increased building density. Generally, building density increased in the building zones but decreased outside of building zones. For more efficiency and success, the political institutions should specify explicit goals for development inside and outside of building zones, and develop new instruments for guiding development outside of building zones.