On average, listings lease in the $20's per square foot per year. The Janesville submarket is going through a a boost in rates. In the last 3 months, the median rate increased $27 per sqft per year.
In the last 90 days, 19 listings have been listed, which means new listings might be 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 available, so finding a space for a small business might be tough.
Even though the median size is 3,700 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this market are around 2 floors. Most buildings in this area were built in 1979 and are Class B.