Unable to answer "Do you have to pay to park here?" – Parking Lot – https://osm.org/way/158675143 via StreetComplete 59.2:

Privatparkplatz auf scheinbar verlassenem Firmengelände

Attached photo(s):
https://westnordost.de/p/244888.jpg
https://westnordost.de/p/244890.jpg