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Available languages — Key:level
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Public-images-osm logo.svg level
Osm element key.svg
Floor number of a feature Edit this description in the wiki page. Edit this description in the data item.
Group: Placement
Used on these elements
may be used on nodesmay be used on waysmay be used on areasshould not be used on relations
Useful combination
Status: in use

Level indicates the floor level, can be used for ways and amenities that are tied to a floor level of a multilevel building. See Simple Indoor Tagging for further information.

Highways (and other ways) can be tagged with level when they are essentially bound to a level of a building complex (such as multilevel parking buildings, railway stations or airports).

For typical street and freeway crossings with bridges layer=* should be used instead.

Roads or other ways passing through buildings should be marked with tunnel=building_passage; they should be only marked with level if there is a strong relation to the corresponding level of the building.


Numeric values

  • level=0 ground floor
  • level=1 floor over ground floor (British English: first floor, American English: second floor)
  • level=-1 first basement floor
  • level=-2 second basement floor

There is an ongoing discussion on usage of fractional values, e.g. level=0.5 or level=1.5 for mezzanine floors and staircases. See the proposals for more examples.

String values

To use a string in the Simple Indoor Tagging scheme, create an outline for the level, tagged with indoor=level, and add name=* and/or level:ref=*. See this section for more info.

In other schemes and in the general case, this may require relations which hold the order and description of these values are used in addition to the level tags. Some other schemes do not allow string values at all, and require numbers with a total ordering instead.

Multiple values

level range: level=-1;0 room=yes is a room which goes over (spans) two levels. It's the same room that is accessible on both levels. Often there are doors to each one. If a room is repeated on multiple levels, meaning it's a different room but it looks/functions identical, draw one element for each room or use repeat_on=*.

Similarly a staircase could be tagged with level=-1;0 meaning that it connects the two levels.

Maps rendering this tag

  • ITO World's Layers map renders the level tag mainly to show its incorrect usage on roads.

See also