Hi....

No...the building itself..  You added addr:housenumber	=520 at the buildingshape and addr:street	Gustav Mahlerlaan at the western buildingshape. 
A fellow mapper removed addresses from the buildingshapes in this changeset
https://www.openstreetmap.org/changeset/167956921#map=17/52.337010/4.872982
and
https://overpass-api.de/achavi/?changeset=167956921

It's okay now.

Perhaps have a look to the phone - format..  That needs +31.... international.

Greetz,
eggie

