The GreenBuilt Home Tour offers you a look inside 18 sustainable, energy-saving homes in Northern Illinois, and allows you to meet the builders, designers, and homeowners who made these homes possible. This all takes place from 10 a.m. to 4 p.m. Saturday and Sunday, Aug. 3 and 4.

The tour features two categories of homes: Twelve Certified Green Homes, meaning that third parties have verified their adherence to nationally recognized standards (you can visit these homes on either day of the tour), and six Green Renovation Homes, meaning that owners have embedded sustainable features into green projects (you can visit these on Saturday only).