The Navistar World Headquarters site, spanning approximately 88 acres in suburban Lisle, Illinois, required extensive renovation and redevelopment of the existing campus to serve the company’s needs. We provided civil engineering, surveying, and natural resources services. All existing site infrastructure was evaluated and plans were developed for all site roadways, parking lots, and utilities. We provided wetland delineation and permitting services through DuPage County for the new parking lot on the adjacent forest preserve property, working with the project team to ensure no impacts to the existing wetlands. In addition to renovation and expansion of the existing buildings and parking structures, a new 15,900-square-foot design center and 80-stall parking lot was added to the site, adding the functionality Navistar desired.