Compared to the rest of the Chicagoland market, the Carpentersville region has smaller rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 17 listings have been listed, which means leases most likley are going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,730 sqft. Most properties in this area are close to 1 floors. Most buildings in this market were built in 2002 and are Class B.