Use caution while deleting a space, and always create an XML Space Backup before proceeding. Once deleted, there is no way to restore a space unless you have made an XML Space Backup.
You need to be a space administrator to delete a space.
To delete a space,
1. Go to the ‘Space Admin’ tab of the Browse Space view. To do this:
* Go to a page in the space, open the ‘Browse’ menu and select ‘Space Admin’. The ‘Space Administration’ view will open.
‘Space Admin’ is only displayed if you are a space administrator for that space or you are a Confluence system administrator.
2. Click on the ‘Remove Space’ link in the left panel under the heading ‘Space Operations’.
3. Click ‘OK’ when the confirmation screen is brought up.