The portfolio includes five office buildings, which have about 775,000 sf, and a daycare center, says Charles Beaver, a principal with John Buck Co. "It is one of the very best suburban office parks in metropolitan Chicago," Beaver says.

The buildings were constructed from 1989 through 2002. Buck does not have any major renovations planned for the buildings at this time, Beaver says. Also included in the sale is a 10.5-acre parcel of land. A build-to-suit office building with between 250,000 sf and 550,000 sf will likely be constructed on the site, he says.

The portfolio has a "very-high quality rent roll" and is 97% leased, Beaver says. Tenants include United Stationers Supply, Opentext, Meridian Group and Fujisawa, which all have their headquarters in the business park, sources say.