Hello,
The outline of this building had a 100% match with Digitaal Vlaanderen GRB imagery, which is the official reference for building shapes in Flanders.
https://www.openstreetmap.org/way/1034374088
Why did you redraw it?  It looks like you drew it according to… aerial imagery instead, which does not match.  Is there anything special about this building that GRB would not know?