On average, listings lease in the $10's per square foot per year. The Westmont region is going through a decrease in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 4% decrease in rent.
Compared to the rest of the Chicagoland market, the Westmont region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 23 listings have been listed, which means new listings might be leasing quickly. You'll want to be prepared to make an offer immediately. About 104% of the available leases in the Westmont are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,040 sqft. Most properties in this region are approximately 1 stories. Most buildings in this market were built in 1986 and are Class B.