Hi Thanks for responding! Yah in OSM its better to fix things then remove them all together. So yah just making it a normal building and tagging it access=no seems to makes sense here! If you can, add details like that to your changeset description so others understand what/why your doing things.

I welcome you, but since you have a new account ill also say OSM is all about "Ground truth" so if it exists on the ground it can be on the map, regardless of being public or private, official or informal. This goes for trails/paths too.

Thanks, I hope you keep improving the map and updating the features around your park! 