On average, listings lease in the $10's per square foot per year. The Eau Claire region is going through a decrease in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 17% decline in rent.
In the last 90 days, 9 listings have come on the market, which means new availabilities most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 267% of the available space in the Eau Claire 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.
The standard measurement for office space in this area is around 1,030 sqft. Most buildings in this region are around 3 floors. Most buildings in this market were built in 1987 and are Class B.