Andrew Chadwick
For now though, I'll go with "no (built) sidewalk, since some aren't even passable and some of them look just like bits of garden.

There are some sidewalks at the foot and at the mouth of the close, though. Those should be mappable from imagery.

Attached photo(s):
https://westnordost.de/p/240291.jpg
https://westnordost.de/p/240292.jpg
https://westnordost.de/p/240293.jpg