The 2,331-square-foot house, which was built in 1980, is in North Hoffman Estates.
Mr. Essex is a physicist at Northrop Grumman Corp., an American aerospace and defense technology company. He has also served as senior optical engineer with the company.
There were 397 home sales in Hoffman Estates in 2008, with a median price of $250,000.
Address: 3999 Whispering Trails Court
Buyer(s): Lisa R Russell and Douglas M Essex
Seller(s): Diane Gasior and John P Gasior
Sale date: May. 15, 2009