
'Red and green contours' to contain sprawl and protect open landscape.
Influential containment concept that was never formally enacted nationally.
The Vijfde Nota over de Ruimtelijke Ordening, drafted around 2001 under minister Jan Pronk, proposed managing urban growth through a system of red and green contours. Red contours were to be drawn around towns and cities, beyond which building would not be permitted, while green contours protected valued open landscapes such as the Green Heart from any development; the extensive territory in between was defined as a balance area subject to negotiated planning. The memorandum sought to curb sprawl and safeguard open space, but it was never definitively adopted at national level and was subsequently superseded by the Nota Ruimte, which dropped the contour system.
Although never formally enacted, the Fifth Memorandum's red and green contours became an influential idea in Dutch debates on containing urban sprawl and protecting open landscape, and several provinces incorporated contour lines into their own regional plans during its drafting. It represents a high-water mark of restrictive, landscape-led national spatial planning before the more market-oriented Nota Ruimte.
Published in 2001 but never finalised: it lapsed after the second Kok cabinet resigned and was effectively replaced by the Nota Ruimte / Spatial Memorandum of 2004-2006, which abandoned the strict contour approach.
The red/green contour proposal was widely criticised as heavy-handed central state intervention over local land-use autonomy.