Most listings are in the $20's per square foot per year. The Menomonee Falls submarket is seeing a a boost in rates. In the last 3 months, the median rate rose $21 per sqft per year.
In the last 90 days, 1 listings have been posted online, which means listings are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 500% of the available space in the Menomonee Falls are subleases, so you might be able to find a shorter term or below market rent. 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 1,080 sqft. Most buildings in this area are close to 2 floors. Most buildings in this market were built in 1972 and are Class B.