Sylphoebe
Unable to answer "What kind of building is this?" for https://osm.org/way/970836787 via StreetComplete 33.2:

it's a bridge connected two buildings. it is only available to enter the bridge from the buildings it's connected. it's a fully covered bridge ( no effected by weather outside ,ex rainy)

Attached photo(s):
https://westnordost.de/p/53231.jpg