Porter Ridge High School (broken link)
The Weddington cluster was the first to group the elementary/middle/high on adjoining campuses. Weddington HS was the prototype for Porter Ridge.
Marvin Ridge Middle & High are on the same campus, with Sandy Ridge ES within sight just down the road. Here are some construction photos from Marvin Ridge HS:
Spring 2007 (scroll down, they are there)
I understand they hope to also cluster the new schools off Cutherberson Rd in a campus setting.