The typical asking rate per listing is in the $20's per square foot per year. The Rosemont submarket is seeing a decline in rates. In the last 3 months, the median rate fell $3 per sqft per year. That's a 10% decline in rent.
Compared to the rest of the Chicagoland market, the Rosemont region has greater rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 16 listings have been listed, which means spaces are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 6% of the available space in the Rosemont 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 1,670 sqft. Most properties in this area are approximately 11 stories. Most buildings in this area were built in 1988 and are Class A.