On average, listings lease in the $10's per square foot per year. The Jefferson Park region is experiencing a a boost in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 4% increase in rent.
Compared to the rest of the Chicagoland market, the Jefferson Park submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 3 listings have been made available, which means office spaces are probably leasing quickly. 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.
Even though the median size is 9,000 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this market are around 1 floors. Most buildings in this market were built in 1950 and are Class A.