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 discounted submarket.
In the last 90 days, 10 listings have come on the market, which means leases might be going fast. You'll want to be prepared to tour spaces as quick as possible. About 10% of the office spaces in the Southwest Side are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 1,500 sqft. Most buildings in this region are around 1 stories. Most buildings in this area were built in 1952 and are Class A.