Admins can delete a Space and all the content associated with it.
When deleting a Space, all the Posts, Replies, and content related to that Space will be permanently removed from the community. This action cannot be reverted.
How admins can delete a Space
Login with your admin account > navigate to the top header > click on your profile image > access the Administration.
Go to the Content section of the Administration and select the Spaces tab > find the Space to edit and click [...] > Settings. This takes you to the Space Setting page, where you can change the space name, privacy, posting and reaction permissions, SEO settings, etc.
From the Space settings page, click on the Danger Zone tab. From the Danger zone, Admins can delete a Space. Once a space is deleted, all the content associated with the space will be permanently removed. This action is not reversible!
Enter the name of the Space for confirmation and click on Delete.