Most listings are in the $30's per square foot per year. The West Side submarket is seeing a a boost in rates. In the last 3 months, the median rate went up $30 per sqft per year.
Compared to the rest of the Chicagoland market, the West Side region has higher rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 40 listings have been posted online, which means listings are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 118% of the available space in the West Side 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,410 sqft. Most buildings in this region are around 3 floors. Most buildings in this market were built in 1923 and are Class B.