On average, listings lease in the $20's per square foot per year. The Monona submarket is experiencing a an increase in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 3% increase in rent.
In the last 90 days, 10 listings have come on the market, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 10% of the available leases in the Monona are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,570 sqft. Most buildings in this region are around 2 stories. Most buildings in this region were built in 1987 and are Class B.