In context of overlay "Buildings" – osm.org/way/550251784 via StreetComplete 58.2:

Two detached houses

In context of overlay "Surfaces" – Parking Aisle – osm.org/way/591026938 via StreetComplete 60.1:

Construction

Unable to answer "Are there traffic signals that show when to cross here?" – Crossing – osm.org/node/5327402212 via StreetComplete 60.1:

No lights but there is a crossing attendant (presumably just at beginning and end of school days?)

In context of overlay "Surfaces" – Sidewalk – osm.org/way/551659840 via StreetComplete 60.1:

No sidewalk on this side

Unable to answer "Does this crossing have markings on the ground?" – Crossing – osm.org/node/2492225214 via StreetComplete 58.2:

No markings on the ground but there is a signpost marking the crossing.

This is a driveway for cars, not just a footpath

via StreetComplete 58.2

Unable to answer "What’s this pole made of?" – Power Pole – osm.org/node/3796856944 via StreetComplete 58.2:

This is a lamp post not an electricity pylon

New house under construction

via StreetComplete 53.1

Footpath here leading through hole in wall to road

via StreetComplete 19.2

Attached photo(s):
https://westnordost.de/p/13854.jpg

Unable to answer "What kind of building is this?" for osm.org/way/26903515 via StreetComplete 21.2:

originally part of the coastal fortifications, then used as a prison