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Public-images-osm logo.svg nonsquare
Nonsquare=yes example.png
States that an area doesn't have square corners, when there may be doubt. Show/edit corresponding data item.
Used on these elements
should not 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)
See also
Status: in use

Rarely used to state that an area doesn't have square corners, when it may look it or be almost square.

iD uses it in validation and won't recommend squaring buildings with this tag.


iD includes a validator, and checks if a building is square or not. From v2.15.0 (released 21 May 2019) to v2.15.2 (17 June 2019), iD added nonsquare=yes to record that a building is supposed to be non-square, and to hide the validation check. This behavior was removed after some controversy.

See also

  • noexit=yes which has been used for more than 10 years, and has more than 500,000 uses, to tell a QA tool that this point isn't supposed to join to another way.