On average, listings lease in the $60's per square foot per year. The DePaul submarket is experiencing a a boost in rates. In the last 3 months, the median rate rose $25 per sqft per year. That's a 67% rise in rent.
Compared to the rest of the Chicagoland market, the DePaul region has greater rates, and you'll need to make a great offer to be in this hot region.
In the last 90 days, 4 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. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 170 sqft. Most buildings in this market are around 3 floors. Most buildings in this area were built in 1927 and are Class C.