GLENVIEW, IL-Opus Development Corp. recently sold two properties, including the 130,000-square-foot Gateway at the Glen office building here. Northwestern Memorial Hospital purchased the office, at Patriot Boulevard and Willow Road, for an undisclosed amount.

The Gateway building is 58% leased by Mead Johnson Nutrition and Navman Wireless Holdings. Mead signed a lease in December 2010 for 68,000 square feet in the 3-year-old building. Northwestern will occupy the majority of the vacant space within the building, John Carlson, real estate director with Opus Development, tells GlobeSt.com. The office is located in the 1,200-acre redevelopment of Glenview Naval Air Station.

He says that the company has been lucky, during a time that suburban office is about 20% vacant in the Chicago area, to lease up and sell buildings such as this one, as well as Highland Landmark V in Downers Grove, IL and the Landmark office in Lake Forest, IL. Carlson says next year should be about the same for the market. “I do think things are going to improve for owners during 2012, but at a very slow pace,” he says. “It’s going to take about 24 months to see vacancy improve for suburban office.”