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Taking this example of a fairly standard house:


Should that be mapped as roof:levels=1 as presumably there is loft / attic, or would you only map it as roof:levels=1 if there was a visible window / loft conversion in the roof?

asked 04 Apr, 22:27

Al3x25's gravatar image

accept rate: 0%

edited 04 Apr, 22:29

Hi, Please see here for guidance on building levels:- https://wiki.openstreetmap.org/wiki/Key:building:levels

It indicates your example would be roof:levels=1 and building:levels=2

Regards Bernard,

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answered 06 Apr, 06:48

BCNorwich's gravatar image

accept rate: 20%

Thanks. I was originally looking at https://wiki.openstreetmap.org/wiki/Key:roof:levels which is less clear on the matter. It only has examples for roof:levels=2, where both roof levels in the example images have windows.

(06 Apr, 06:56) Al3x25

Hi, Yes a roof level is a roof level whether it has windows or not, and there can be several levels within a roof. The two pictures in your link above show, (from the arrangement of the windows), that there are two levels within the roof, hence roof:levels=2 in those instances. Without windows as a guide, you can only assume that there is one roof level.

(06 Apr, 07:36) BCNorwich
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question asked: 04 Apr, 22:27

question was seen: 467 times

last updated: 06 Apr, 07:36

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