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Public-images-osm logo.svg building = unknown
Use building=yes instead. Edit this description in the wiki page. Edit this description in the data item.
Rendering in OSM Carto
Area building=yes.png
Group: Buildings
Used on these elements
should not be used on nodesshould not be used on waysshould not be used on areasshould not be used on relations
Status: deprecated

Use of this tag is discouraged. There is no value whatsoever in using building=unknown instead of building=yes. The meaning is the same, but this tag is harder to support by various tools. For example StreetComplete will ask about building type for building=yes, it will not happen with building=unknown.

External links

See also