Owners can set permissions for deleting or transferring repositories in an organization.
- 
In the top right corner of GitHub Enterprise Server, click your profile photo, then click Your organizations.  
- 
Next to the organization, click Settings.  
- 
In the left sidebar, click Member privileges.  
- 
Under "Repository deletion and transfer", select or deselect Allow members to delete or transfer repositories for this organization.  
- 
Click Save.