You can read the free version at GlobeSt.
http://www.globest.com/news/12_310/c...wn-319745.html
Essentially Allstate has been unsuccessful trying to sell their South Barrington campus, so they're gonna tear it down in hopes that a cleared site will be more attractive to potential buyers. The nearby intersection of Higgins/59 has really exploded in the last few years with two huge retail developments, so this area has some potential. Unfortunately those retail developments cannot fill their spaces and office vacancy in the NW corridor is at 28%.
The campus is actually fairly attractive, with handsome modernist brick buildings. I hope Allstate can find a buyer. If the buildings are torn down, it will likely remain empty just like the massive Sutton Crossing property across the street. In the long run, I hope any new office development can be constrained to Prairie Stone... it's well-planned with sidewalks, landscaping, etc and it's set up on a loop so it can easily be served by buses and connected to Metra/CTA. If - God forbid - the STAR Line is ever built, communities should work to centralize employment at dense nodes around the stations.