Most listings are in the $20's per square foot per year. The Wauwatosa submarket is going through a an increase in rates. In the last 3 months, the median rate went up $7 per sqft per year. That's a 36% increase in rent.
Compared to the rest of the Milwaukee County market, the Wauwatosa region has more expensive rates, and you'll need to make a great offer to be in this hot submarket.
In the last 90 days, 38 listings have been posted online, which means spaces might be leasing quickly. You'll want to be prepared to make an offer immediately. About 3% of the office spaces in the Wauwatosa are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 2,050 sqft. Most buildings in this region are around 3 floors. Most buildings in this area were built in 1975 and are Class B.