Unable to answer "What is the house number of this building?" for way/288132678 via StreetComplete 31.0:

This building does not exist. There is, however, a smaller building that appears to be a maintenance shed of some sort.

Attached photo(s):
https://westnordost.de/p/32729.jpg
https://westnordost.de/p/32730.jpg

This gas pump seems to be reserved for commercial users.

On Saturdays, SeamCrafts is open by appointment.

This is a row of post office boxes with a roof to shelter it.

I'm not sure how this stream should be positioned or if it even exists, but the current position runs through the middle of some houses.