This is an import as we can see on the history of one of the nodes: http://www.openstreetmap.org/node/3696941268/history

Notice in some cases the same housenumbers are valid! Based on the aerial images this is not the case here as the cadaster import seems to be for the building footprint, the lot footprint and boundary(?) or maybe this was originally planned as 3 different lots. This looks like a manual cleanup operation.

A real world example of buildings having the same number because someone somewhere said it was ok: Dalvegur 18 (two different buildings with different businesses) http://www.openstreetmap.org/#map=18/64.10536/-21.87005


--Jói


Þann 29.5.2016 23:13, skrifaði john whelan:
I came across these locally whilst looking in JOSM for something else.

http://www.openstreetmap.org/way/87480616#map=18/45.47153/-75.51310

Is there a tool to look for duplicate house numbers that are very close?

I suspect an import of some type but more importantly is the problem of cleaning up.

They have the same values for
addr:city
addr:housenumber
addr:street

though slightly different positions. I suspect this might be a general problem within OSM not just in Ottawa which is why I thought to ask the question here.

Thanks John


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