ISPConfig 2.2.35...hope this helps. I do have an adendum to my previous post.
I deleted the problem website via ISPConfig and after a minute undeleted it. This seemed to fix the permissions problem but only to a point...some directories and files still showed root as owner.
I found this out when I tried to install a new WordPress theme...WordPress was unable to create a new directory for the new theme. I had to do this manually...