The typical asking rate per listing is in the $10's per square foot per year. The Oshkosh submarket is experiencing a a boost in rates. In the last 3 months, the median rate increased $15 per sqft per year.
In the last 90 days, 2 listings have been posted online, which means new availabilities most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 50% of the listings in the Oshkosh are subleases, so you might be able to snag a great spot on a short term. 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 7,900 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this area are close to 2 stories. Most buildings in this market were built in 0 and are Class B.