Key:building:levels:underground

Description
To mark number of levels under ground level Show/edit corresponding data item.
Group: buildings
Used on these elements
may be used on nodesshould not be used on waysmay be used on areas (and multipolygon relations)should not be used on relations (except multipolygon relations)
Requires
Useful combination
See also
Status: in use
More details at taginfo
Tools for this tag

This tag is used for marking the number of underground levels of a building (building=*) or of a building part (building:part=yes).

For more information, see building:levels=*.

How to map

Use the tag on a closed way area in combination with building=*. The value of =* must be a non-negative integer (i. e. 0 or greater).

Do not use negative values! For above-ground building parts without connection to the ground, use building:min_level=* instead.

Examples

=* Meaning
0 no underground levels
1 one level underground
2 two levels underground

Multi-storey car-park with parking at levels G, -1 and -2. 

   amenity=parking
   building=parking
   parking=multi-storey
   building:levels=0
   =2
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