On average, listings lease in the $10's per square foot per year. The New Berlin submarket is going through a decrease in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 3% decline in rent.
In the last 90 days, 10 listings have been made available, which means spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 3,160 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this area are close to 2 stories. Most buildings in this market were built in 1997 and are Class B.