Well done! The building footprint you've added here is valid and mostly accurate, it's just a little bit too large. Building footprints are generally either the same size as the roof, or smaller. If squaring the footprint causes it to become too large, then you can map ~95% the size of the roof before squaring. I shrank the footprint and uploade so you have an example. Click on the feature in this changeset and open it in ID editor to see it then toggle OSM data via the map data panel. Thank you for your contribution!
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            Published using OSMCha: https://osmcha.org/changesets/157964767
            