There are several reasons for demolition in Illinois including to rid a company of a potentially unsafe structure. Another reason for demolition is to create space for new construction by tearing down the standing building. There are quite a few older buildings, factories and residential homes that don't pass building inspections. Because of these reasons it's often times cheaper to demolish them if they can't be sold. When the demolition occurs there are certain building codes and demolition laws that must be enforced at all times.