Most listings are in the $10's per square foot per year. The Janesville region is experiencing a a boost in rates. In the last 3 months, the median rate went up $18 per sqft per year.
In the last 90 days, 31 listings have been listed, which means listings are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 71% of the listings in the Janesville are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,100 sqft. Most properties in this region are approximately 2 floors. Most buildings in this region were built in 1979 and are Class B.