The typical asking rate per listing is in the $10's per square foot per year. The Dodge County submarket is experiencing a a rise in rates. In the last 3 months, the median rate went up $18 per sqft per year.
In the last 90 days, 5 listings have come on the market, which means new listings most likley are going fast. You'll want to be prepared to make an offer immediately. About 40% of the available space in the Dodge County 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,200 sqft. Most buildings in this area are around 2 floors. Most buildings in this area were built in 1972 and are Class B.