Special places archive
September 2013
The age of buildings in the Netherlands
Broken link
The tools and the data for online mapping keep getting better. This web map was created by Bert Spaan using open cadastral data.
A screen capture showing part of central Amsterdam. The large light-blue building is the Opera House. Those are canals shown in black.
The map covers the whole of the Netherlands, and all of its 9,866,539 buildings. You can scroll and zoom all over the country.
Legend showing colours for different building ages.
This site was pointed out to me by Thom Blake, who saw it on the MapBox blog.