Most listings are in the $30's per square foot per year. The Zimmerman submarket is going through a an increase in rates. In the last 3 months, the median rate went up $32 per sqft per year.
In the last 90 days, 6 listings have been made available, which means leases might be going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 360 sqft. Most buildings in this region are around 1 stories. Most buildings in this area were built in 1913.