Most listings are in the $10's per square foot per year. The Ozaukee County region is going through a a boost in rates. In the last 3 months, the median rate went up $16 per sqft per year.
In the last 90 days, 11 listings have been listed, which means leases most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 273% of the available space in the Ozaukee County 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 450 sqft. Most buildings in this area are close to 2 floors. Most buildings in this area were built in 1991 and are Class A.