The typical asking rate per listing is in the $10's per square foot per year. The Waukesha County region is experiencing a decline 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, 116 listings have been posted online, so you'll want to check back regularly for new listings. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,380 sqft. Most buildings in this market are around 2 floors. Most buildings in this area were built in 1988 and are Class B.