LISLE, ILL. — Rosemont, Ill.-based Opus North Corp. has broken ground on Arboretum Landmark, a 391-unit multifamily community located at 450 Warrenville Rd. in Lisle. The five-story community, which will include one-, two- and three-bedroom units, is slated for completion in late 2009. Amenities at the property will include a fitness center, club room with demonstration kitchen, internet café, and media screening room with stadium-style seating. Situated within the Corporetum Office Campus, Arboretum Landmark will be within walking distance of more than 3 million square feet of office space and will be surrounded by the Morton Arboretum, a 1,700-acre site dedicated to the planting and conservation of trees. In addition to the apartment community, Opus North may develop a 150,000-square-foot office complex on the site.