Compared to the rest of the Chicagoland market, the Southwest Side region has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 6 listings have been made available, which means spaces are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 333% of the listings in the Southwest Side are subleases, so you might be able to snag a great spot on a short term. 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 1,270 sqft. Most properties in this area are approximately 1 floors. Most buildings in this market were built in 1952 and are Class A.