The typical asking rate per listing is in the $20's per square foot per year. The Wausau submarket is going through a an increase in rates. In the last 3 months, the median rate rose $21 per sqft per year.
In the last 90 days, 3 listings have come on the market, which means new availabilities might be leasing quickly. You'll want to be prepared to make an offer immediately. About 100% of the listings in the Wausau 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,330 sqft. Most properties in this area are around 1 stories. Most buildings in this region were built in 1983 and are Class B.