Currently inspecting.

I think there are two ways parallel with each other:

1) https://www.openstreetmap.org/way/138578131 is meant to be the upper way on the roof of the garages (no mapillary pictures).  But it is misaligned and should be moved a bit closer to buildings 7/8 and 9/10.
2) Your mapillary pictures show the service road downstairs connecting the garages.  Yes, it must be added to OSM.  The garages are not visible on UrbisAdm, though those are "buildings".
Thanks already for the changes here and the pictures, I’ll try to find some time to look in more detail.