Most listings are in the $20's per square foot per year. The Whitefish Bay submarket is seeing a decline in rates. In the last 3 months, the median rate decreased $5 per sqft per year. That's a 20% decline in rent.
Compared to the rest of the Milwaukee County market, the Whitefish Bay region has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 6 listings have come on the market, which means office spaces 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 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 1,487 sqft. Most buildings in this region are around 2 stories. Most buildings in this region were built in 1970 and are Class C.