Most listings are in the $10's per square foot per year. The Batavia submarket is going through a decline in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 14% decrease in rent.
Compared to the rest of the Chicagoland market, the Batavia region has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 6 listings have been posted online, which means new availabilities 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.
Even though the median size is 2,720 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this area are around 2 stories. Most buildings in this region were built in 1971 and are Class B.