Most listings are in the $20's per square foot per year. The Shorewood submarket is experiencing a an increase in rates. In the last 3 months, the median rate rose $25 per sqft per year.
Compared to the rest of the Milwaukee County market, the Shorewood submarket has higher rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 1 listings have been listed, which means listings most likley are going fast. You'll want to be prepared to make an offer immediately. 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 1,730 sqft.