Hi neverevererv123, welcome to OpenStreetMap!

The name= tag is used to note the name of the building, not it's use. I've added the shop=storage_rental tag to the building to mark it as a storage rental facility. You can read more about tags here.
https://wiki.openstreetmap.org/wiki/Tags

Don't hesitate to reach out to me if you have any questions!

You can find my changeset here
https://www.openstreetmap.org/changeset/140179316