Compared to the rest of the Chicagoland market, the Westmont submarket has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 23 listings have come on the market, which means new availabilities might be going fast. You'll want to be prepared to make an offer immediately. About 4% of the listings in the Westmont are subleases, so you will probably have to focus your search on direct office leases. 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 1,790 sqft. Most buildings in this market are around 1 floors. Most buildings in this area were built in 1986 and are Class A.