Most listings are in the $10's per square foot per year. The Roselle region is experiencing a decrease in rates. In the last 3 months, the median rate decreased $10 per sqft per year. That's a 39% decline in rent.
Compared to the rest of the Chicagoland market, the Roselle region has lower rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 9 listings have been made available, which means spaces are probably leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,530 sqft. Most properties in this region are around 3 stories. Most buildings in this area were built in 2005 and are Class B.