Hi.. It's tagged with landuse =residential with an extra tag 
residential=chalet.
But toutism=chalet is also possible ?
https://wiki.openstreetmap.org/wiki/Tag:tourism%3Dchalet
This could apply to single chalet or a group of chalets. 
I think loc_name is correct.
But the official_name=Wildforsterweg

You may add that as an additional tag.
Greetz,
eggie

