Hello PeJi67,

On OpenStreetMap we map whatever exists on the ground. This also includes private features. Please refrain from deleting such objects in the future.

Our guidelines on mapping private features can be found here:
osm.wiki/Mapping_private_information
osm.wiki/Why_we_won%27t_delete_roads_on_private_property

Best regards,
Taya Snijder,
On behalf of the OSMF Data Working Group