Most listings are in the $10's per square foot per year. The West Allis region is experiencing a a rise in rates. In the last 3 months, the median rate went up $3 per sqft per year. That's a 17% rise in rent.
Compared to the rest of the Milwaukee County market, the West Allis region has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 8 listings have been listed, which means leases most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 6,521 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are around 1 floors. Most buildings in this area were built in 1968 and are Class B.