As of December 2015, permitting of residential new construction in Downers Grove increased by 28% relative to December 2014 (i.e. year-over-year). Permitting of residential remodeling in Downers Grove increased by 61% over the same period. The indices shown in the chart are not seasonally adjusted.
Remodeling and construction in Downers Grove are regulated by the Downers Grove, IL building department.