Unable to answer "What kind of building is this?" for https://osm.org/way/687905947 via StreetComplete 21.2:

This house, along with all the others on the small road they are connected to, seems to be the same. 2 story homes for a single family, although I'm not positive on if they are duals or singles

Attached photo(s):
https://westnordost.de/p/17248.jpg