Space Creation Settings
You can also choose which administrators in the account should have the right to create spaces by editing their admin permissions.
Click your profile image in the workspace's upper right-hand corner.
Select Settings from the drop-down.
Click Security in the left panel.
Scroll to the Create Spaces section.
Select one of the options to designate who can create spaces in the account:
Owners and all administrators with the permission
Regular users, owners, and all administrators with the permission
Click Save changes.