The typical asking rate per listing is in the $20's per square foot per year. The Ozaukee County region is going through a a rise in rates. In the last 3 months, the median rate increased $9 per sqft per year. That's a 54% increase in rent.
In the last 90 days, 11 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 127% of the listings in the Ozaukee 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 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 2,040 sqft. Most properties in this market are close to 2 floors. Most buildings in this area were built in 1991 and are Class B.