Le 26/09/2012 23:00, Christian Quest a écrit :
In France, cadastre is the most official source about buildings and
land ownership. When you buy/sell a building all the documents refers
to the cadastre.

It provides sometime too many details compared to what could be seen
by survey. Does this mean it is wrong to have too many details ?

For example the building given by Frederik (OK, they are some mistakes in it)

http://osm.org/go/xVR3y4BJp--

Some polygons have the tag wall=no, that explain the number of polygons.
Shour we detele this information by merging them ?
--
FrViPofm

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