The segregation between rich and poor has become more marked in cities where entirely new residential areas have been developed, the Volkskrant reports on Tuesday, quoting research from the environment assessment agency PBL.

High income families tend to gravitate towards the new developments while singles, low income households and the elderly remain in the older neighbourhoods, the PBL says.
But by replacing social housing within the old city boundaries with private ownership, diversity can be maintained, the PBL says.
Middle class
In Tilburg, for example, ethnic segregation has strengthened because white families have moved to new areas. In the The Hague and Utrecht middle class families from all ethnic backgrounds have moved to new estates on the fringes of the old city, leaving poorer residents behind.
But in Rotterdam, Groningen and Arnhem segregation has been reduced because lots of owner occupier property has been built in older residential areas.
The Netherlands has plans to build some 800,000 new homes over the next 10 years.